DREYFUS NEW JERSEY MUNICIPAL MONEY MARKET FUND INC
N-30D, 1999-10-07
Previous: EVENTURES GROUP INC, 8-K, 1999-10-07
Next: PROSPECT STREET HIGH INCOME PORTFOLIO INC, 8-K, 1999-10-07



Dreyfus New Jersey
Municipal Money Market Fund, Inc.

SEMIANNUAL REPORT July 31, 1999

(reg.tm)







The  views  expressed herein are current to the date of this report. These views
and  the  composition  of the fund's portfolio are subject to change at any time
based on market and other conditions.

   * Not FDIC-Insured
   * Not Bank-Guaranteed
   * May Lose Value

Year 2000 Issues (Unaudited)

The fund could be adversely affected if the computer systems used by The Dreyfus
Corporation and the fund's other service providers do not properly process and
calculate date-related information from and after January 1, 2000. The Dreyfus
Corporation is working to avoid Year 2000-related problems in its systems and to
obtain assurances from other service providers that they are taking similar
steps. In addition, issuers of securities in which the fund invests may be
adversely affected by Year 2000-related problems. This could have an impact on
the value of the fund's investments and its share price.




                                 Contents

                                 THE FUND
- --------------------------------------------------

                             2   Letter from the President

                             3   Discussion of Fund Performance

                             6   Statement of Investments

                            10   Statement of Assets and Liabilities

                            11   Statement of Operations

                            12   Statement of Changes in Net Assets

                            13   Financial Highlights

                            14   Notes to Financial Statements

                                 FOR MORE INFORMATION
- ---------------------------------------------------------------------------

                                 Back Cover



                                                                       The Fund

                                 Dreyfus New Jersey Municipal Money Market Fund

LETTER FROM THE PRESIDENT

Dear Shareholder:

We  are  pleased  to  present  this  semiannual  report  for  Dreyfus New Jersey
Municipal Money Market Fund, covering the six-month period from February 1, 1999
through  July  31,  1999. Inside, you'll find valuable information about how the
fund  was  managed  during the reporting period, including a discussion with the
fund's portfolio manager, Karen Hand.

Yields  on  tax-exempt money market securities generally rose over the reporting
period. This was due to signs of robust U.S. economic growth that became evident
early  in  1999, fueling fears that inflationary pressures might re-emerge in an
overheated  economy.  In  response  to  inflation  concerns, the Federal Reserve
raised  short-term  interest  rates by one-quarter of a percentage point on June
30, effectively reversing a portion of last fall's rate cuts.

However,  tax-exempt  money  market  yields  generally  did  not rise as much as
taxable  money  market  yields  because  short-term  tax-exempt  securities were
influenced  by unique supply-and-demand factors. Strong economic conditions have
curtailed  many municipalities' need to borrow over the short term, reducing the
available  supply  of  tax-exempt  money market securities. Yet, investor demand
remained strong from individuals seeking to minimize their tax liabilities. This
imbalance helped constrain the rise of tax-exempt money market yields during the
reporting period relative to most sectors of the taxable money markets.

We  appreciate  your confidence over the past six months, and we look forward to
your continued participation in Dreyfus New Jersey Municipal Money Market Fund.

Sincerely,


Stephen E. Canter
President and Chief Investment Officer
The Dreyfus Corporation
August 10, 1999






DISCUSSION OF FUND PERFORMANCE

Karen Hand, Portfolio Manager

How did Dreyfus New Jersey Municipal Money Market Fund perform during the
period?

For  the  six-month  period ended July 31, 1999, the fund produced an annualized
yield  of  2.34% . Taking  into  account  the  effects  of compounding, the fund
provided  an  annualized  effective yield of 2.37%.(1) The fund provided a total
return (not annualized) of 1.17%(2) compared to the Lipper New Jersey Tax-Exempt
Money  Market  Funds category average total return (not annualized) of 1.19% for
the same period.(3)

What is the fund's investment approach?

Our  goal  is  to  seek  a high level of federal and New Jersey state tax-exempt
income  while  maintaining  a  stable  $1.00  share price. We also attempt to be
especially vigilant in our efforts to preserve capital.

In  pursuing this objective, we employ two primary strategies. First, we attempt
to  add  value  by  constructing a diverse portfolio of high-quality, tax-exempt
money market instruments from New Jersey issuers. Second, we actively manage the
fund'  s   average   maturity  in  anticipation  of  interest  rate  trends  and
supply-and-demand changes in New Jersey's short-term municipal marketplace.

For   example,   if   we   expect  supply  to  increase  temporarily  when  many
municipalities  issue  short-term debt at once, we may reduce the fund's average
maturity  to make cash available for the purchase of higher-yielding securities.
That' s  because  yields tend to rise if many issuers are competing for investor
interest.  If  we  expect  demand  to  surge at a time when we anticipate little
issuance  and,  therefore,  lower  yields,  we  may  increase the fund's average
maturity to maintain current yields for as long as practical. At other times, we
try  to  maintain  an  average  maturity  that  reflects  our view of short-term
interest rate trends.

Effective  August  12,  1999,  Ms.  Jill  Shaffro McGovern will assume portfolio
management   responsibilities   for   the  fund.  Ms.  McGovern  has   The  Fun




DISCUSSION OF FUND PERFORMANCE (CONTINUED)

been a member of Dreyfus' tax-exempt investment team for more than a decade, and
so I anticipate no changes in the fund's management approach.

What other factors influenced the fund's performance?

When  the Asian currency and credit crisis spread to Russia and threatened Latin
America  last summer and fall, the Federal Reserve Board and other central banks
moved  quickly  to stimulate global economic growth. They did so by reducing key
short-term  interest  rates, which was intended to help boost economic activity.
An additional consequence was lower yields on money market securities.

The Federal Reserve Board's strategy was apparently successful: evidence emerged
in 1999 that economies in Japan and Southeast Asia had begun to recover, and the
growth  of  the  U.S.  economy  was stronger than most analysts expected. In the
United  States,  consumer  confidence  was at a 30-year high, and employment was
strong, with hourly wages rising.

This  positive  economic  news raised concerns among fixed-income investors that
inflation  pressures  might  re-emerge.  In  response, the Federal Reserve Board
increased short-term interest rates on June 30, effectively offsetting a portion
of  last fall's decrease. Because the market anticipated this change in monetary
policy  in  the weeks before it was announced, short-term tax-exempt yields rose
during the second quarter.

However,  tax-exempt  money  market  yields  did  not rise as much as comparable
taxable  yields. That's primarily because New Jersey -- and many other states --
have enjoyed higher tax revenues during this period of economic prosperity.

What is the fund's current strategy?

We have continued to focus on very high-quality, liquid money market instruments
from  a  wide  array  of  New  Jersey  issuers. Some of the most frequently used
instruments  include  Variable  Rate  Demand  Notes (VRDNs), which are issued by
investment banks through the securiti



zation of longer-term municipal bonds. With a put feature attached to each VRDN,
of  either  one  or  seven  days,  we believe that VRDNs afford a high degree of
liquidity  as  well  as high credit quality to the portfolio. Accordingly, as of
July  31,  much of the fund's portfolio was composed of VRDNs. The remainder was
comprised  primarily  of  tax-exempt  commercial paper and New Jersey tax-exempt
notes.

Also  as of July 31, the fund's average maturity remained at the long end of the
neutral  range.  By maintaining a neutral-to-long average maturity, our strategy
has  been  to retain the flexibility we need to capture competitive yields while
maintaining  the  flexibility  we  need  to  respond  quickly to changing market
conditions.

August 10, 1999

(1)  ANNUALIZED EFFECTIVE YIELD IS BASED UPON DIVIDENDS DECLARED DAILY AND
REINVESTED MONTHLY. PAST PERFORMANCE IS NO GUARANTEE OF FUTURE RESULTS. YIELDS
FLUCTUATE. AN INVESTMENT IN THE FUND IS NOT INSURED OR GUARANTEED BY THE FDIC OR
ANY OTHER GOVERNMENT AGENCY. ALTHOUGH THE FUND SEEKS TO PRESERVE THE VALUE OF
YOUR INVESTMENT AT $1.00 PER SHARE, IT IS POSSIBLE TO LOSE MONEY BY INVESTING IN
THE FUND.

(2)  TOTAL RETURN INCLUDES REINVESTMENT OF DIVIDENDS. INCOME MAY BE SUBJECT TO
STATE AND LOCAL TAXES FOR NON-NEW JERSEY RESIDENTS, AND SOME INCOME MAY BE
SUBJECT TO THE FEDERAL ALTERNATIVE MINIMUM TAX (AMT) FOR CERTAIN INVESTORS.

(3)  SOURCE: LIPPER ANALYTICAL SERVICES, INC.

                                                             The Fund


<TABLE>

STATEMENT OF INVESTMENTS

July 31, 1999 (Unaudited)

                                                                                                Principal
TAX EXEMPT INVESTMENTS--99.0%                                                                  Amount ($)               Value ($)
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                           <C>                      <C>
NEW JERSEY--94.3%

Atlantic County Improvement Authority, Revenue, VRDN

   (Aces Pooled Government Loan Program)

   2.60% (LOC; Krediet Bank)                                                                  4,800,000  (a)           4,800,000

Bayonne Municipal Utilities Authority

   (Sewer Project) 3.50%, 5/5/2000                                                           12,000,000               12,026,487

Burlington County, BAN:

   3.25%, 11/4/1999                                                                           8,929,500                8,934,555

   3.50%, 6/9/2000                                                                            8,648,000                8,670,160

Essex County, TAN 3.50%, 11/18/1999                                                          22,000,000               22,021,166

Essex County Improvement Authority:

   BAN 3.50%, 3/31/2000                                                                      20,000,000               20,045,015

   Revenue, VRDN:

      (Aces Pooled Government Loan Program)
         2.60% (LOC; Banco Santander)                                                        14,200,000  (a)          14,200,000

      (County Asset Sale Project)
         3.05% (Insured; AMBAC and Liquidity Facility;
         Morgan Guaranty Trust Co.)                                                          10,000,000  (a)          10,000,000

Hudson County Improvement Authority, VRDN

   (Essential Purpose Pooled Government Loan)
   3.05% (LOC; Comerica Bank)                                                                16,240,000  (a)          16,240,000

Monmouth County Improvement Authority, Revenue, VRDN

   (Aces Pooled Government Loan Program)
   2.65% (LOC; The Bank of New York)                                                         23,000,000  (a)          23,000,000

New Jersey Economic Development Authority, VRDN:

   Dock Facility Revenue, Refunding (Bayonne/Imtt Project)
      3.30%, Series A (LOC; First Chicago Corp.)                                              3,000,000  (a)           3,000,000

   EDR:

      (Exit 8A Limited Partnership Project)
         3.05% (LOC; European American Bank)                                                  5,700,000  (a)           5,700,000

      (Merck and Co. Inc.) 3.65%, Series A (LOC; Merck and Co.)                               1,000,000  (a)           1,000,000

         Refunding (Hartz and Rex Associates)
         3.275%, Series B (LOC; Citibank)                                                     2,000,000  (a)           2,000,000

      (White Horse Pike Limited Project)
         3.40% (Corp. Guaranty; Household Finance Corp.)                                      7,600,000  (a)           7,600,000

   Mortgage Facilities Revenue (Rennoc Corp. Project)

      3.40% (LOC; First Union National Bank of North Carolina)                                3,505,000  (a)           3,505,000

   Natural Gas Facilities Revenue, Refunding

      (New Jersey Natural Gas Co. Project)
      2.60%, Series A (Insured; AMBAC and Liquidity Facility;
      The Bank of New York)                                                                   4,845,000  (a)           4,845,000

   PCR, Refunding:

      (Hoffman La Roche Inc.)
         3.20% (LOC; Wachovia Bank of Georgia)                                               20,000,000  (a)          20,000,000




                                                                                               Principal

TAX EXEMPT INVESTMENTS (CONTINUED)                                                             Amount ($)             Value ($)
- ------------------------------------------------------------------------------------------------------------------------------------

NEW JERSEY (CONTINUED)

New Jersey Economic Development Authority, VRDN (continued):

  PCR, Refunding (continued):

    (Public Service Electric and Gas Co.)

         2.60%, Series A (Insured; MBIA and Liquidity Facility;
         Union Bank of Switzerland)                                                          13,300,000  (a)          13,300,000

   Water Facilities Revenue, Refunding
      (United Water New Jersey Inc. Project)

      3.40%, Series A (Insured; AMBAC and Liquidity Facility;
      The Bank of New York)                                                                   8,200,000  (a)           8,200,000

New Jersey Health Care Facilities Financing Authority,

  Revenue, VRDN
  (Hospital Capital Asset Financing):

      2.90%, Series A (LOC; Chase Manhattan Bank)                                            12,200,000  (a)          12,200,000

      2.90%, Series D (LOC; Chase Manhattan Bank)                                            10,000,000  (a)          10,000,000

New Jersey Higher Education Assistance Authority,

   Student Loan Revenue, Refunding
   3.10%, Series B, 6/1/2000 (Insured; MBIA and
   Liquidity Facility; Landesbank Hessen)                                                     6,000,000                6,000,000

New Jersey Sports and Exposition Authority,

  State Contract, VRDN

   2.85%, Series C (Insured; MBIA and Liquidity Facility;
   Credit Suisse)                                                                            25,310,000  (a)          25,310,000

New Jersey Turnpike Authority, Turnpike Revenue,

   Refunding, VRDN
   2.50%, Series D (Insured; FGIC and Liquidity Facility;
   Societe Generale)                                                                         47,800,000  (a)          47,800,000

Patterson, BAN 4%, 6/16/2000                                                                  8,304,000                8,342,585

Port Authority of New York and New Jersey,

  Special Obligation Revenue, VRDN
  (Versatile Structure Obligation):

      3.25%, Series 3 (Liquidity Facility;
         Morgan Guaranty Trust Co.)                                                           9,000,000  (a)            9,000,000

      3.25%, Series 5 (Liquidity Facility;
         Bayerische Landesbank)                                                              25,850,000  (a)           25,850,000

      3.30%, Series 4 (LOC; Landesbank Hessen)                                               27,150,000  (a)           27,150,000

      3.30%, Series 6 (Liquidity Facility; Bank of Nova Scotia)                              22,850,000  (a)           22,850,000

South Jersey Transportation Authority, BAN

   2.95%, 11/3/1999 (LOC; First Union National Bank
   of North Carolina)                                                                        20,000,000                20,000,000

Trenton, BAN 3.50%, 5/19/2000                                                                10,000,000                10,022,996

Union County Industrial Pollution Control Financing Authority,
   PCR, Refunding, VRDN

   (Exxon Project) 2.90% (LOC; Exxon Corp.)                                                   6,400,000  (a)            6,400,000

                                                                                                     The Fund



STATEMENT OF INVESTMENTS (Unaudited) (CONTINUED)

                                                     Principal

TAX EXEMPT INVESTMENTS (CONTINUED)                                                             Amount ($)             Value ($)
- ------------------------------------------------------------------------------------------------------------------------------------

U.S. RELATED--4.7%

Commonwealth of Puerto Rico,

   Government Development Bank, Refunding, VRDN
   2.55% (Insured; MBIA and Liquidity Facility; Credit Suisse)                               22,100,000  (a)          22,100,000
- ------------------------------------------------------------------------------------------------------------------------------------

TOTAL INVESTMENTS (cost $462,112,964)                                                             99.0%              462,112,964

CASH AND RECEIVABLES (NET)                                                                         1.0%                4,760,931

NET ASSETS                                                                                       100.0%              466,873,895




Summary of Abbreviations

AMBAC           American Municipal Bond                                MBIA         Municipal Bond Investors Assurance

                   Assurance Corporation                                                Insurance Corporation

BAN             Bond Anticipation Notes                                PCR          Pollution Control Revenue

EDR             Economic Development Revenue                           TAN          Tax Anticipation Notes

FGIC            Financial Guaranty Insurance Company                   VRDN         Variable Rate Demand Notes

LOC             Letter of Credit

Summary of Combined Ratings (Unaudited)

Fitch                or          Moody's               or        Standard & Poor's                           Value (%)
- ------------------------------------------------------------------------------------------------------------------------------------

F1+/F1                           VMIG1/MIG1, P1                  SP1+/SP1, A1+/A1                                 88.6

Not Rated (b)                    Not Rated (b)                   Not Rated (b)                                    11.4

                                                                                                                 100.0

A  SECURITIES PAYABLE ON DEMAND. VARIABLE INTEREST RATE--SUBJECT TO PERIODIC CHANGE.

B SECURITIES WHICH, WHILE NOT RATED BY FITCH, MOODY'S AND STANDARD & POOR'S HAVE
BEEN DETERMINED BY THE MANAGER TO BE OF COMPARABLE QUALITY TO THOSE RATED
SECURITIES IN WHICH THE FUND MAY INVEST.

SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>

                                                             The Fund



<TABLE>

STATEMENT OF ASSETS AND LIABILITIES

July 31, 1999 (Unaudited)

                                                                                                               Cost         Value
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                                        <C>          <C>
ASSETS ($):

Investments in securities--See Statement of

Investments                                                                                                462,112,964  462,112,964

Cash                                                                                                                      2,408,756

Interest receivable                                                                                                       2,606,277

Prepaid expenses and other assets                                                                                            36,338

                                                                                                                        467,164,335
- ------------------------------------------------------------------------------------------------------------------------------------

LIABILITIES ($):

Due to The Dreyfus Corporation and affiliates                                                                               229,862

Accrued expenses                                                                                                             60,578

                                                                                                                            290,440
- ------------------------------------------------------------------------------------------------------------------------------------

NET ASSETS ($)                                                                                                          466,873,895
- ------------------------------------------------------------------------------------------------------------------------------------

COMPOSITION OF NET ASSETS ($):

Paid-in capital                                                                                                         467,116,216

Accumulated net realized gain (loss) on investments                                                                       (242,321)
- ------------------------------------------------------------------------------------------------------------------------------------

NET ASSETS ($)                                                                                                          466,873,895
- ------------------------------------------------------------------------------------------------------------------------------------

SHARES OUTSTANDING

(2 billion shares of $.001 par value Common Stock authorized)                                                           467,116,216

NET ASSET VALUE, offering and redemption price per share ($)                                                                   1.00

SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>



<TABLE>

STATEMENT OF OPERATIONS

Six Months Ended July 31, 1999 (Unaudited)


- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                                                       <C>
INVESTMENT INCOME ($):


INTEREST INCOME                                                                                                           6,990,665

EXPENSES:

Management fee--Note 2(a)                                                                                                 1,164,376

Shareholder servicing costs--Note 2(b)                                                                                      295,434

Professional fees                                                                                                            26,780

Custodian fees                                                                                                               24,014

Directors' fees and expenses--Note 2(c)                                                                                      16,100

Prospectus and shareholders' reports                                                                                          8,123

Registration fees                                                                                                             6,460

Miscellaneous                                                                                                                 5,110

TOTAL EXPENSES                                                                                                            1,546,397

INVESTMENT INCOME--NET, representing net increase in net assets

  resulting from operations                                                                                               5,444,268

SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>

                                                             The Fund


<TABLE>

STATEMENT OF CHANGES IN NET ASSETS

                                                                             Six Months Ended
                                                                                July 31, 1999                         Year Ended
                                                                                   (Unaudited)                  January 31, 1999
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                                  <C>                               <C>
OPERATIONS ($):


Investment income--net                                                               5,444,268                         13,110,679

Net realized gain (loss) on investments                                                --                                (62,972)

NET INCREASE (DECREASE) IN NET ASSETS
   RESULTING FROM OPERATIONS                                                         5,444,268                         13,047,707
- ------------------------------------------------------------------------------------------------------------------------------------

DIVIDENDS TO SHAREHOLDERS FROM ($):

INVESTMENT INCOME--NET                                                              (5,444,268)                       (13,110,679)
- --------------------------------------------------------------------------------

CAPITAL STOCK TRANSACTIONS ($1.00 per share):

Net proceeds from shares sold                                                      285,708,354                        674,108,432

Dividends reinvested                                                                 4,864,405                         11,791,866

Cost of shares redeemed                                                           (298,744,963)                      (737,057,088)

INCREASE (DECREASE) IN NET ASSETS
   FROM CAPITAL STOCK TRANSACTIONS                                                  (8,172,204)                       (51,156,790)

TOTAL INCREASE (DECREASE) IN NET ASSETS                                             (8,172,204)                       (51,219,762)
- ------------------------------------------------------------------------------------------------------------------------------------

NET ASSETS ($):

Beginning of period                                                                475,046,099                        526,265,861

END OF PERIOD                                                                      466,873,895                        475,046,099

SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>





FINANCIAL HIGHLIGHTS

The  following table describes the performance for the fiscal periods indicated.
Total return shows how much your investment in the fund would have increased (or
decreased)  during  each  period,  assuming you had reinvested all dividends and
distributions.  These  figures  have  been  derived  from  the  fund's financial
statements.
<TABLE>


                                                       Six Months Ended
                                                          July 31, 1999                     Year Ended January 31,
                                                                         ----------------------------------------------------------
                                                             (Unaudited)  1999        1998          1997         1996        1995
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                           <C>         <C>        <C>            <C>          <C>         <C>
PER SHARE DATA ($):

Net asset value, beginning

   of period                                                  1.00        1.00       1.00           1.00         1.00        1.00

Investment Operations:

Investment income--net                                         .012        .027       .029           .027         .032        .025

Distributions:

Dividends from investment
   income--net                                                (.012)      (.027)     (.029)         (.027)       (.032)      (.025)

Net asset value, end of period                                1.00        1.00       1.00           1.00         1.00        1.00
- ------------------------------------------------------------------------------------------------------------------------------------

TOTAL RETURN (%)                                              2.36(a)     2.69       2.96           2.75         3.25        2.55
- ------------------------------------------------------------------------------------------------------------------------------------

RATIOS/SUPPLEMENTAL DATA (%):

Ratio of expenses to average
   net assets                                                  .66(a)      .67        .64            .65          .59         .42

Ratio of net investment income
   to average net assets                                      2.34(a)     2.65       2.92           2.71         3.21        2.52

Decrease reflected in above
   expense ratios due to
   undertakings by the Manager                                 --          --         --             --           .06         .22
- ------------------------------------------------------------------------------------------------------------------------------------

Net Assets, end of period
   ($ x 1,000)                                             466,874     475,046     526,266       561,260      647,557     772,913

(A)  ANNUALIZED.

SEE NOTES TO FINANCIAL STATEMENTS.
</TABLE>

                                                             The Fund




NOTES TO FINANCIAL STATEMENTS (Unaudited)

NOTE 1--Significant Accounting Policies:

Dreyfus  New Jersey Municipal Money Market Fund, Inc. (the "fund") is registered
under  the  Investment  Company  Act  of  1940,  as  amended  (the  "Act"), as a
non-diversified  open-end  management  investment company. The fund's investment
objective  is to provide investors with as high a level of current income exempt
from  Federal and New Jersey income taxes as is consistent with the preservation
of  capital  and  the  maintenance  of  liquidity.  The Dreyfus Corporation (the
" Manager" ) serves  as  the  fund's investment adviser. The Manager is a direct
subsidiary  of  Mellon  Bank,  N.A.  Premier  Mutual  Fund Services, Inc. is the
distributor  of  the fund's shares, which are sold to the public without a sales
charge.

It  is  the  fund's policy to maintain a continuous net asset value per share of
$1.00; the fund has adopted certain investment, portfolio valuation and dividend
and distribution policies to enable it to do so. There is no assurance, however,
that  the  fund  will  be able to maintain a stable net asset value per share of
$1.00.

The  fund' s  financial  statements  are  prepared  in accordance with generally
accepted accounting principles which may require the use of management estimates
and assumptions. Actual results could differ from those estimates.

(a) Portfolio valuation: Investments in securities are valued at amortized cost,
which has been determined by the fund's Board of Directors to represent the fair
value of the fund's investments.

(b)  Securities  transactions and investment income: Securities transactions are
recorded  on  a  trade date basis. Interest income, adjusted for amortization of
premiums,  is  earned  from settlement date and recognized on the accrual basis.
Realized  gain  and  loss  from  securities  transactions  are  recorded  on the
identified  cost  basis.  Under  the  terms  of  the custody agreement, the fund
received  net  earnings credits of $15,978 during the period ended July 31, 1999
based  on  available  cash  balances  left  on deposit. Income earned under this
arrangement is included in interest income.




The  fund  follows  an  investment  policy  of  investing primarily in municipal
obligations  of  one  state. Economic changes affecting the state and certain of
its  public  bodies  and municipalities may affect the ability of issuers within
the  state to pay interest on, or repay principal of, municipal obligations held
by the fund.

(c) Dividends to shareholders: It is the policy of the fund to declare dividends
daily  from  investment  income-net.  Such dividends are paid monthly. Dividends
from net realized capital gain, if any, are normally declared and paid annually,
but  the fund may make distributions on a more frequent basis to comply with the
distribution  requirements of the Internal Revenue Code of 1986, as amended (the
" Code" ). To the extent that net realized capital gain can be offset by capital
loss carryovers, it is the policy of the fund not to distribute such gain.

(d) Federal income taxes: It is the policy of the fund to continue to qualify as
a  regulated  investment  company, which can distribute tax exempt dividends, by
complying  with the applicable provisions of the Code, and to make distributions
of  income  and  net  realized  capital  gain  sufficient  to  relieve  it  from
substantially all Federal income and excise taxes.

The  fund  has  an  unused  capital  loss  carryover  of  approximately $242,000
available  for  Federal  income  tax  purposes  to be applied against future net
securities  profits,  if  any,  realized  subsequent to January 31, 1999. If not
applied,  $900 of the carryover expires in fiscal 2000, $2,300 expires in fiscal
2002,  $39,800  expires  in fiscal 2003, $115,000 expires in fiscal 2004, $4,000
expires  in  fiscal  2005, $17,000 expires in fiscal 2006 and $63,000 expires in
fiscal 2007.

At  July  31,  1999, the cost of investments for Federal income tax purposes was
substantially  the  same  as  the cost for financial reporting purposes (see the
Statement of Investments).

NOTE 2--Management Fee and Other Transactions with Affiliates:

(a)  Pursuant  to a management agreement with the Manager, the management fee is
computed  at  the  annual  rate  of .50 of 1% of the value of the fund's average
daily net assets and is payable monthly.

                                                             The Fund



NOTES TO FINANCIAL STATEMENTS (Unaudited) (CONTINUED)

(b)  Under  the  Shareholder  Services Plan, the fund reimburses Dreyfus Service
Corporation,  a  wholly-owned subsidiary of the Manager, an amount not to exceed
an  annual rate of .25 of 1% of the value of the fund's average daily net assets
for certain allocated expenses of providing personal services and/or maintaining
shareholder  accounts.  The  services  provided  may  include  personal services
relating  to  shareholder  accounts,  such  as  answering  shareholder inquiries
regarding  the  fund  and  providing reports and other information, and services
related to the maintenance of shareholder accounts. During the period ended July
31,  1999,  the  fund  was  charged  an  aggregate  of  $158,258 pursuant to the
Shareholder Services Plan.

The  fund  compensates  Dreyfus Transfer, Inc., a wholly owned subsidiary of the
Manager,  under  a  transfer  agency  agreement,  for  providing  personnel  and
facilities  to  perform transfer agency services for the fund. During the period
ended  July  31,  1999,  the  fund  was charged $91,434 pursuant to the transfer
agency agreement.

(c)  Each  director  who  is  not  an  "affiliated person" as defined in the Act
receives from the fund an annual fee of $2,500 and an attendance fee of $500 per
meeting.  The  Chairman  of  the  Board  receives  an  additional  25%  of  such
compensation.




                                                           For More Information

                        Dreyfus New Jersey Municipal Money Market Fund
                        200 Park Avenue
                        New York, NY 10166

                        Manager
                        The Dreyfus Corporation
                        200 Park Avenue
                        New York, NY 10166

                        Custodian

                        The Bank of New York
                        90 Washington Street
                        New York, NY 10286

                        Transfer Agent &
                        Dividend Disbursing Agent

                        Dreyfus Transfer, Inc.
                        P.O. Box 9671
                        Providence, RI 02940

                        Distributor
                        Premier Mutual Fund Services, Inc.
                        60 State Street
                        Boston, MA 02109




To obtain information:

BY TELEPHONE Call 1-800-645-6561

BY MAIL  Write to:
The Dreyfus Family of Funds
144 Glenn Curtiss Boulevard
Uniondale, NY 11556-0144

BY E-MAIL  Send your request
to [email protected]

ON THE INTERNET
Information can be viewed online or downloaded from:

http://www.dreyfus.com

(c) 1999 Dreyfus Service Corporation                                  758SA997


<PAGE>




© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission