<PAGE> PAGE 1
000 A000000 09/30/98
000 C000000 0000746601
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 Y
000 H000000 N
000 I000000 3.0
000 J000000 A
001 A000000 SIT MUTUTAL FUNDS II, INC.
001 B000000 811-04033
001 C000000 6123323223
002 A000000 4600 NORWEST CENTER 90 SOUTH SEVENTH ST
002 B000000 MINNEAPOLIS
002 C000000 MN
002 D010000 55402
002 D020000 4130
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 3
007 C010100 1
007 C020100 SIT TAX-FREE INCOME FUND, SERIES A
007 C030100 N
007 C010200 2
007 C020200 SIT MINNESOTA TAX-FREE INCOME FUND, SERIES B
007 C030200 N
007 C010300 3
007 C020300 SIT BOND FUND, SERIES C
007 C030300 N
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A00AA01 SIT INVESTMENT ASSOCIATES, INC.
008 B00AA01 A
008 C00AA01 801-16350
008 D01AA01 MINNEAPOLIS
008 D02AA01 MN
008 D03AA01 55402
008 D04AA01 4130
011 A00AA01 SIA SECURITIES CORP.
011 B00AA01 8-46668
011 C01AA01 MINNEAPOLIS
011 C02AA01 MN
011 C03AA01 55402
<PAGE> PAGE 2
011 C04AA01 4130
012 A00AA01 FIRST DATA INVESTOR SERVICES GROUP
012 B00AA01 84-1760
012 C01AA01 PROVIDENCE
012 C02AA01 RI
012 C03AA01 02903
012 C04AA01 1135
013 A00AA01 KPMG PEAT MARWICK LLP
013 B01AA01 MINNEAPOLIS
013 B02AA01 MN
013 B03AA01 55402
013 B04AA01 3900
014 A00AA01 SIA SECURITIES CORP.
014 B00AA01 8-46668
015 A00AA01 THE NORTHERN TRUST COMPANY
015 B00AA01 C
015 C01AA01 CHICAGO
015 C02AA01 IL
015 C03AA01 60675
015 C04AA01 0000
015 E01AA01 X
018 00AA00 Y
019 A00AA00 Y
019 B00AA00 13
019 C00AA00 SIT NBGING
020 A000001 CAPITAL INSTITUTION SERVICES
020 B000001 75-1565705
020 C000001 27
020 A000002 AUTRANET SECURITIES
020 B000002 13-2961507
020 C000002 6
020 A000003 GOLDMAN SACHS
020 B000003 95-6287525
020 C000003 0
020 A000004 SUTRO AND CO.
020 B000004 94-1704902
020 C000004 0
020 A000005 FREEMAN SECURITIES
020 B000005 13-2662313
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 33
022 A000001 DREYFUS TAX-EXEMPT CASH MANAGEMENT FUND
022 B000001 13-3281887
022 C000001 78322
022 D000001 95525
022 A000002 FEDERATED MINNESOTA MUNICIPAL FUND
<PAGE> PAGE 3
022 B000002 41-0451159
022 C000002 59111
022 D000002 60512
022 A000003 GOLDMAN SACHS
022 B000003 95-6287525
022 C000003 67497
022 D000003 0
022 A000004 LEHMAN BROTHERS INC
022 B000004 13-2518466
022 C000004 29279
022 D000004 0
022 A000005 PIPER JAFFRAY
022 B000005 41-0953246
022 C000005 17273
022 D000005 7068
022 A000006 NORWEST FINANCIAL INC
022 B000006 42-1186565
022 C000006 17902
022 D000006 4500
022 A000007 MAXCOR FINANCIAL
022 B000007 13-3410896
022 C000007 11287
022 D000007 6156
022 A000008 MILLER SCHROEDER
022 B000008 41-0901191
022 C000008 15305
022 D000008 0
022 A000009 FIRST ALBANY
022 B000009 14-1391446
022 C000009 5704
022 D000009 7347
022 A000010 DAIN BOSWORTH
022 B000010 41-0212020
022 C000010 9184
022 D000010 3118
023 C000000 1362911
023 D000000 313693
024 00AA00 N
025 D00AA01 0
025 D00AA02 0
025 D00AA03 0
025 D00AA04 0
025 D00AA05 0
025 D00AA06 0
025 D00AA07 0
025 D00AA08 0
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
<PAGE> PAGE 4
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 Y
027 000000 Y
029 00AA00 N
030 A00AA00 0
030 B00AA00 0.00
030 C00AA00 0.00
031 A00AA00 0
031 B00AA00 0
032 00AA00 0
033 00AA00 0
034 00AA00 N
035 00AA00 0
036 B00AA00 0
037 00AA00 N
038 00AA00 0
039 00AA00 Y
040 00AA00 N
042 A00AA00 0
042 B00AA00 0
042 C00AA00 0
042 D00AA00 0
042 E00AA00 0
042 F00AA00 0
042 G00AA00 0
042 H00AA00 0
043 00AA00 0
044 00AA00 0
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 Y
054 D00AA00 Y
054 E00AA00 Y
054 F00AA00 Y
054 G00AA00 Y
054 H00AA00 Y
054 I00AA00 Y
054 J00AA00 Y
054 K00AA00 Y
054 L00AA00 Y
054 M00AA00 Y
054 N00AA00 Y
054 O00AA00 Y
055 A00AA00 N
055 B00AA00 N
056 00AA00 Y
057 00AA00 N
077 A000000 N
078 000000 N
<PAGE> PAGE 5
080 A00AA00 RELIANCE INSURANCE COMPANY
080 C00AA00 10000
081 A00AA00 Y
081 B00AA00 18
082 A00AA00 N
082 B00AA00 0
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
086 A010000 0
086 A020000 0
086 B010000 0
086 B020000 0
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 0
086 F010000 0
086 F020000 0
028 A010100 38622
028 A020100 1751
028 A030100 0
028 A040100 30311
028 B010100 27034
028 B020100 1754
028 B030100 0
028 B040100 11309
028 C010100 29424
028 C020100 1957
028 C030100 0
028 C040100 17869
028 D010100 27450
028 D020100 1978
028 D030100 0
028 D040100 11568
028 E010100 74067
028 E020100 2096
028 E030100 0
028 E040100 9453
028 F010100 60808
028 F020100 2191
028 F030100 0
028 F040100 33751
028 G010100 257405
028 G020100 11727
028 G030100 0
<PAGE> PAGE 6
028 G040100 114261
028 H000100 0
045 000100 Y
046 000100 N
047 000100 Y
048 000100 0.000
048 A010100 250000
048 A020100 0.800
048 B010100 250000
048 B020100 0.700
048 C010100 0
048 C020100 0.000
048 D010100 0
048 D020100 0.000
048 E010100 0
048 E020100 0.000
048 F010100 0
048 F020100 0.000
048 G010100 0
048 G020100 0.000
048 H010100 0
048 H020100 0.000
048 I010100 0
048 I020100 0.000
048 J010100 0
048 J020100 0.000
048 K010100 500000
048 K020100 0.600
049 000100 N
050 000100 N
051 000100 N
052 000100 N
053 A000100 Y
053 B000100 Y
053 C000100 N
058 A000100 N
059 000100 Y
060 A000100 Y
060 B000100 Y
061 000100 2000
062 A000100 Y
062 B000100 0.0
062 C000100 0.0
062 D000100 0.0
062 E000100 12.2
062 F000100 0.0
062 G000100 0.0
062 H000100 0.0
062 I000100 0.0
062 J000100 0.0
062 K000100 0.0
<PAGE> PAGE 7
062 L000100 0.0
062 M000100 0.0
062 N000100 0.0
062 O000100 87.8
062 P000100 0.0
062 Q000100 0.0
062 R000100 0.0
063 A000100 0
063 B000100 17.0
064 A000100 Y
064 B000100 N
066 A000100 N
067 000100 N
068 A000100 N
068 B000100 N
069 000100 N
070 A010100 Y
070 A020100 N
070 B010100 Y
070 B020100 N
070 C010100 Y
070 C020100 N
070 D010100 Y
070 D020100 N
070 E010100 Y
070 E020100 N
070 F010100 Y
070 F020100 N
070 G010100 Y
070 G020100 N
070 H010100 Y
070 H020100 N
070 I010100 N
070 I020100 N
070 J010100 Y
070 J020100 N
070 K010100 Y
070 K020100 Y
070 L010100 Y
070 L020100 N
070 M010100 Y
070 M020100 N
070 N010100 Y
070 N020100 N
070 O010100 Y
070 O020100 N
070 P010100 Y
070 P020100 N
070 Q010100 Y
070 Q020100 N
070 R010100 Y
<PAGE> PAGE 8
070 R020100 N
071 A000100 153906
071 B000100 64363
071 C000100 540299
071 D000100 12
072 A000100 6
072 B000100 16497
072 C000100 0
072 D000100 0
072 E000100 0
072 F000100 2299
072 G000100 0
072 H000100 0
072 I000100 0
072 J000100 0
072 K000100 0
072 L000100 0
072 M000100 0
072 N000100 0
072 O000100 0
072 P000100 0
072 Q000100 0
072 R000100 0
072 S000100 0
072 T000100 0
072 U000100 0
072 V000100 0
072 W000100 0
072 X000100 2299
072 Y000100 199
072 Z000100 14397
072AA000100 1976
072BB000100 0
072CC010100 8375
072CC020100 0
072DD010100 14404
072DD020100 0
072EE000100 0
073 A010100 0.2625
073 A020100 0.0000
073 B000100 0.0000
073 C000100 0.0000
074 A000100 0
074 B000100 0
074 C000100 83783
074 D000100 601436
074 E000100 0
074 F000100 0
074 G000100 0
074 H000100 0
074 I000100 0
<PAGE> PAGE 9
074 J000100 0
074 K000100 0
074 L000100 9620
074 M000100 0
074 N000100 694839
074 O000100 8376
074 P000100 385
074 Q000100 0
074 R010100 0
074 R020100 0
074 R030100 0
074 R040100 1284
074 S000100 0
074 T000100 684794
074 U010100 64750
074 U020100 0
074 V010100 10.58
074 V020100 0.00
074 W000100 0.0000
074 X000100 4848
074 Y000100 25366
075 A000100 0
075 B000100 581167
076 000100 0.00
028 A010200 12389
028 A020200 519
028 A030200 0
028 A040200 7454
028 B010200 13205
028 B020200 514
028 B030200 0
028 B040200 3104
028 C010200 12681
028 C020200 607
028 C030200 0
028 C040200 5403
028 D010200 7082
028 D020200 615
028 D030200 0
028 D040200 4769
028 E010200 20349
028 E020200 634
028 E030200 0
028 E040200 4482
028 F010200 13694
028 F020200 648
028 F030200 0
028 F040200 9751
028 G010200 79400
028 G020200 3537
028 G030200 0
<PAGE> PAGE 10
028 G040200 34963
028 H000200 0
045 000200 Y
046 000200 N
047 000200 Y
048 000200 0.800
048 A010200 0
048 A020200 0.000
048 B010200 0
048 B020200 0.000
048 C010200 0
048 C020200 0.000
048 D010200 0
048 D020200 0.000
048 E010200 0
048 E020200 0.000
048 F010200 0
048 F020200 0.000
048 G010200 0
048 G020200 0.000
048 H010200 0
048 H020200 0.000
048 I010200 0
048 I020200 0.000
048 J010200 0
048 J020200 0.000
048 K010200 0
048 K020200 0.000
049 000200 N
050 000200 N
051 000200 N
052 000200 N
053 A000200 N
058 A000200 N
059 000200 Y
060 A000200 N
060 B000200 N
061 000200 2000
062 A000200 Y
062 B000200 0.0
062 C000200 0.0
062 D000200 0.0
062 E000200 6.0
062 F000200 0.0
062 G000200 0.0
062 H000200 0.0
062 I000200 0.0
062 J000200 0.0
062 K000200 0.0
062 L000200 0.0
062 M000200 0.0
<PAGE> PAGE 11
062 N000200 0.0
062 O000200 94.0
062 P000200 0.0
062 Q000200 0.0
062 R000200 0.0
063 A000200 0
063 B000200 19.8
064 A000200 Y
064 B000200 N
066 A000200 N
067 000200 N
068 A000200 N
068 B000200 N
069 000200 N
070 A010200 Y
070 A020200 N
070 B010200 Y
070 B020200 N
070 C010200 Y
070 C020200 N
070 D010200 Y
070 D020200 N
070 E010200 Y
070 E020200 N
070 F010200 Y
070 F020200 N
070 G010200 Y
070 G020200 N
070 H010200 Y
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 Y
070 J020200 N
070 K010200 Y
070 K020200 Y
070 L010200 Y
070 L020200 N
070 M010200 Y
070 M020200 N
070 N010200 Y
070 N020200 N
070 O010200 Y
070 O020200 N
070 P010200 Y
070 P020200 N
070 Q010200 Y
070 Q020200 N
070 R010200 Y
070 R020200 N
071 A000200 69343
<PAGE> PAGE 12
071 B000200 12849
071 C000200 160388
071 D000200 8
072 A000200 6
072 B000200 4854
072 C000200 0
072 D000200 0
072 E000200 0
072 F000200 669
072 G000200 0
072 H000200 0
072 I000200 0
072 J000200 0
072 K000200 0
072 L000200 0
072 M000200 0
072 N000200 0
072 O000200 0
072 P000200 0
072 Q000200 0
072 R000200 0
072 S000200 0
072 T000200 0
072 U000200 0
072 V000200 0
072 W000200 0
072 X000200 669
072 Y000200 0
072 Z000200 4186
072AA000200 42
072BB000200 0
072CC010200 2654
072CC020200 0
072DD010200 4195
072DD020200 0
072EE000200 0
073 A010200 0.2645
073 A020200 0.0000
073 B000200 0.0000
073 C000200 0.0000
074 A000200 0
074 B000200 0
074 C000200 12298
074 D000200 182692
074 E000200 0
074 F000200 0
074 G000200 0
074 H000200 0
074 I000200 0
074 J000200 0
074 K000200 0
<PAGE> PAGE 13
074 L000200 3260
074 M000200 0
074 N000200 198250
074 O000200 2141
074 P000200 127
074 Q000200 0
074 R010200 0
074 R020200 0
074 R030200 0
074 R040200 1687
074 S000200 0
074 T000200 194295
074 U010200 18257
074 U020200 0
074 V010200 10.64
074 V020200 0.00
074 W000200 0.0000
074 X000200 1684
074 Y000200 16197
075 A000200 0
075 B000200 167638
076 000200 0.00
028 A010300 383
028 A020300 45
028 A030300 0
028 A040300 463
028 B010300 240
028 B020300 38
028 B030300 0
028 B040300 110
028 C010300 239
028 C020300 45
028 C030300 0
028 C040300 297
028 D010300 252
028 D020300 50
028 D030300 0
028 D040300 130
028 E010300 612
028 E020300 49
028 E030300 0
028 E040300 94
028 F010300 283
028 F020300 52
028 F030300 0
028 F040300 554
028 G010300 2009
028 G020300 279
028 G030300 0
028 G040300 1648
028 H000300 0
<PAGE> PAGE 14
045 000300 Y
046 000300 N
047 000300 Y
048 000300 0.800
048 A010300 0
048 A020300 0.000
048 B010300 0
048 B020300 0.000
048 C010300 0
048 C020300 0.000
048 D010300 0
048 D020300 0.000
048 E010300 0
048 E020300 0.000
048 F010300 0
048 F020300 0.000
048 G010300 0
048 G020300 0.000
048 H010300 0
048 H020300 0.000
048 I010300 0
048 I020300 0.000
048 J010300 0
048 J020300 0.000
048 K010300 0
048 K020300 0.000
049 000300 N
050 000300 N
051 000300 N
052 000300 N
053 A000300 N
058 A000300 N
059 000300 Y
060 A000300 Y
060 B000300 Y
061 000300 2000
062 A000300 Y
062 B000300 0.0
062 C000300 0.0
062 D000300 0.0
062 E000300 0.0
062 F000300 0.0
062 G000300 0.0
062 H000300 0.0
062 I000300 0.0
062 J000300 0.0
062 K000300 0.0
062 L000300 3.1
062 M000300 15.4
062 N000300 44.2
062 O000300 0.0
<PAGE> PAGE 15
062 P000300 16.4
062 Q000300 20.9
062 R000300 0.0
063 A000300 0
063 B000300 17.3
064 A000300 Y
064 B000300 N
066 A000300 N
067 000300 N
068 A000300 N
068 B000300 N
069 000300 N
070 A010300 Y
070 A020300 N
070 B010300 Y
070 B020300 N
070 C010300 Y
070 C020300 Y
070 D010300 Y
070 D020300 N
070 E010300 Y
070 E020300 N
070 F010300 Y
070 F020300 N
070 G010300 Y
070 G020300 N
070 H010300 Y
070 H020300 N
070 I010300 N
070 I020300 N
070 J010300 Y
070 J020300 N
070 K010300 Y
070 K020300 Y
070 L010300 Y
070 L020300 N
070 M010300 Y
070 M020300 N
070 N010300 Y
070 N020300 N
070 O010300 Y
070 O020300 N
070 P010300 Y
070 P020300 N
070 Q010300 Y
070 Q020300 N
070 R010300 Y
070 R020300 N
071 A000300 5010
071 B000300 4494
071 C000300 10619
<PAGE> PAGE 16
071 D000300 51
072 A000300 6
072 B000300 337
072 C000300 0
072 D000300 0
072 E000300 0
072 F000300 44
072 G000300 0
072 H000300 0
072 I000300 0
072 J000300 0
072 K000300 0
072 L000300 0
072 M000300 0
072 N000300 0
072 O000300 0
072 P000300 0
072 Q000300 0
072 R000300 0
072 S000300 0
072 T000300 0
072 U000300 0
072 V000300 0
072 W000300 0
072 X000300 44
072 Y000300 0
072 Z000300 293
072AA000300 34
072BB000300 0
072CC010300 239
072CC020300 0
072DD010300 293
072DD020300 0
072EE000300 0
073 A010300 0.2691
073 A020300 0.0000
073 B000300 0.0000
073 C000300 0.0000
074 A000300 0
074 B000300 0
074 C000300 263
074 D000300 11255
074 E000300 0
074 F000300 0
074 G000300 0
074 H000300 0
074 I000300 0
074 J000300 0
074 K000300 0
074 L000300 118
074 M000300 0
<PAGE> PAGE 17
074 N000300 11636
074 O000300 0
074 P000300 7
074 Q000300 0
074 R010300 0
074 R020300 0
074 R030300 0
074 R040300 9
074 S000300 0
074 T000300 11620
074 U010300 1130
074 U020300 0
074 V010300 10.28
074 V020300 0.00
074 W000300 0.0000
074 X000300 173
074 Y000300 702
075 A000300 0
075 B000300 11077
076 000300 0.00
SIGNATURE PAUL E. RASMUSSEN
TITLE VICE PRESIDENT
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000746601
<NAME> SIT MUTUAL FUNDS II, INC
<SERIES>
<NUMBER> 1
<NAME> SIT TAX-FREE INCOME FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-END> SEP-30-1998
<INVESTMENTS-AT-COST> 656,882,049
<INVESTMENTS-AT-VALUE> 685,218,849
<RECEIVABLES> 9,619,749
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 694,838,598
<PAYABLE-FOR-SECURITIES> 8,375,562
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,669,102
<TOTAL-LIABILITIES> 10,044,664
<SENIOR-EQUITY> 64,750
<PAID-IN-CAPITAL-COMMON> 652,926,513
<SHARES-COMMON-STOCK> 64,750,325
<SHARES-COMMON-PRIOR> 49,932,471
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 3,465,871
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 28,336,800
<NET-ASSETS> 684,793,934
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 16,497,249
<OTHER-INCOME> 0
<EXPENSES-NET> 2,100,502
<NET-INVESTMENT-INCOME> 14,396,747
<REALIZED-GAINS-CURRENT> 1,976,582
<APPREC-INCREASE-CURRENT> 8,374,839
<NET-CHANGE-FROM-OPS> 24,748,168
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 14,404,173
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 24,649,571
<NUMBER-OF-SHARES-REDEEMED> 10,954,252
<SHARES-REINVESTED> 1,122,535
<NET-CHANGE-IN-ASSETS> 165,215,281
<ACCUMULATED-NII-PRIOR> 7,426
<ACCUMULATED-GAINS-PRIOR> 1,489,289
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2,299,298
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2,299,298
<AVERAGE-NET-ASSETS> 581,167,246
<PER-SHARE-NAV-BEGIN> 10.41
<PER-SHARE-NII> .26
<PER-SHARE-GAIN-APPREC> .17
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> .26
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.58
<EXPENSE-RATIO> .73
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000746601
<NAME> SIT MUTUAL FUNDS II, INC
<SERIES>
<NUMBER> 2
<NAME> SIT MINNESOTA TAX-FREE INCOME FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-END> SEP-30-1998
<INVESTMENTS-AT-COST> 187,828,314
<INVESTMENTS-AT-VALUE> 194,989,726
<RECEIVABLES> 3,260,349
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 198,250,075
<PAYABLE-FOR-SECURITIES> 2,141,124
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,814,103
<TOTAL-LIABILITIES> 3,955,227
<SENIOR-EQUITY> 18,257
<PAID-IN-CAPITAL-COMMON> 187,164,743
<SHARES-COMMON-STOCK> 18,256,568
<SHARES-COMMON-PRIOR> 13,697,612
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (49,564)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 7,161,412
<NET-ASSETS> 194,294,848
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 4,854,065
<OTHER-INCOME> 0
<EXPENSES-NET> 668,553
<NET-INVESTMENT-INCOME> 4,185,512
<REALIZED-GAINS-CURRENT> 42,661
<APPREC-INCREASE-CURRENT> 2,654,288
<NET-CHANGE-FROM-OPS> 6,882,461
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 4,194,591
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 7,542,713
<NUMBER-OF-SHARES-REDEEMED> 3,319,566
<SHARES-REINVESTED> 335,809
<NET-CHANGE-IN-ASSETS> 50,661,178
<ACCUMULATED-NII-PRIOR> 9,078
<ACCUMULATED-GAINS-PRIOR> (92,225)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 668,553
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 668,553
<AVERAGE-NET-ASSETS> 167,638,339
<PER-SHARE-NAV-BEGIN> 10.49
<PER-SHARE-NII> .26
<PER-SHARE-GAIN-APPREC> .15
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> .26
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.64
<EXPENSE-RATIO> .80
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000746601
<NAME> SIT MUTUAL FUNDS II, INC.
<SERIES>
<NUMBER> 3
<NAME> SIT BOND FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-1999
<PERIOD-END> SEP-30-1998
<INVESTMENTS-AT-COST> 11,162,854
<INVESTMENTS-AT-VALUE> 11,517,521
<RECEIVABLES> 118,197
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 11,635,718
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 15,992
<TOTAL-LIABILITIES> 15,992
<SENIOR-EQUITY> 1,130
<PAID-IN-CAPITAL-COMMON> 11,245,065
<SHARES-COMMON-STOCK> 1,130,237
<SHARES-COMMON-PRIOR> 1,067,125
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 18,864
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 354,667
<NET-ASSETS> 11,619,726
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 336,643
<OTHER-INCOME> 0
<EXPENSES-NET> 43,990
<NET-INVESTMENT-INCOME> 292,653
<REALIZED-GAINS-CURRENT> 34,179
<APPREC-INCREASE-CURRENT> 238,736
<NET-CHANGE-FROM-OPS> 565,568
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 292,653
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 198,727
<NUMBER-OF-SHARES-REDEEMED> 163,146
<SHARES-REINVESTED> 27,531
<NET-CHANGE-IN-ASSETS> 913,475
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (15,315)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 43,990
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 43,990
<AVERAGE-NET-ASSETS> 11,076,626
<PER-SHARE-NAV-BEGIN> 10.03
<PER-SHARE-NII> .27
<PER-SHARE-GAIN-APPREC> .25
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> .27
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.28
<EXPENSE-RATIO> .80
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>