WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000902719
<NAME> THE BLACKROCK FLORIDA INVESTMENT QUALITY MUNICIPAL TRUST
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-END> APR-30-2000
<INVESTMENTS-AT-COST> 23,301,927
<INVESTMENTS-AT-VALUE> 24,288,867
<RECEIVABLES> 367,359
<ASSETS-OTHER> 26,308
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 24,682,534
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 130,560
<TOTAL-LIABILITIES> 130,560
<SENIOR-EQUITY> 8,500,000
<PAID-IN-CAPITAL-COMMON> 15,596,716
<SHARES-COMMON-STOCK> 1,127,093
<SHARES-COMMON-PRIOR> 1,127,093
<ACCUMULATED-NII-CURRENT> 166,077
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (697,759)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 986,940
<NET-ASSETS> 16,051,974
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 702,609
<OTHER-INCOME> 0
<EXPENSES-NET> 99,242
<NET-INVESTMENT-INCOME> 603,367
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> (47,240)
<NET-CHANGE-FROM-OPS> 556,127
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (614,214)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (58,087)
<ACCUMULATED-NII-PRIOR> 176,924
<ACCUMULATED-GAINS-PRIOR> (697,759)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 42,989
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 99,242
<AVERAGE-NET-ASSETS> 16,065,000
<PER-SHARE-NAV-BEGIN> 14.29
<PER-SHARE-NII> 0.54
<PER-SHARE-GAIN-APPREC> (0.04)
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> (0.55)
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 14.24
<EXPENSE-RATIO> 1.21
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.00
</TABLE>
