<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000888410
<NAME> MUNIYIELD CALIFORNIA INSURED FUND II, INC.
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-START> NOV-01-1999
<PERIOD-END> APR-30-2000
<INVESTMENTS-AT-COST> 375781930
<INVESTMENTS-AT-VALUE> 368243895
<RECEIVABLES> 7604453
<ASSETS-OTHER> 193724
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 376042072
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1772514
<TOTAL-LIABILITIES> 1772514
<SENIOR-EQUITY> 130000000
<PAID-IN-CAPITAL-COMMON> 265384752
<SHARES-COMMON-STOCK> 18344946
<SHARES-COMMON-PRIOR> 18344946
<ACCUMULATED-NII-CURRENT> 2359864
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (9467291)
<OVERDISTRIBUTION-GAINS> (6469732)
<ACCUM-APPREC-OR-DEPREC> (7538035)
<NET-ASSETS> 374269558
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 10489912
<OTHER-INCOME> 0
<EXPENSES-NET> (1277897)
<NET-INVESTMENT-INCOME> 9212015
<REALIZED-GAINS-CURRENT> (9467291)
<APPREC-INCREASE-CURRENT> 13174460
<NET-CHANGE-FROM-OPS> 12919184
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (7391179)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 3296849
<ACCUMULATED-NII-PRIOR> 2770184
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> (6469732)
<GROSS-ADVISORY-FEES> 927366
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1277897
<AVERAGE-NET-ASSETS> 372722499
<PER-SHARE-NAV-BEGIN> 13.14
<PER-SHARE-NII> .50
<PER-SHARE-GAIN-APPREC> .20
<PER-SHARE-DIVIDEND> (.40)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 13.32
<EXPENSE-RATIO> .69
</TABLE>