<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000027825
<NAME> DELAWARE GROUP INCOME FUNDS
<SERIES>
<NUMBER> 031
<NAME> DELAWARE HIGH YIELD OPPORTUNITIES FUND A CLASS
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> JUL-31-2000
<PERIOD-END> JUL-31-2000
<INVESTMENTS-AT-COST> 28,296,462
<INVESTMENTS-AT-VALUE> 27,406,733
<RECEIVABLES> 950,053
<ASSETS-OTHER> 100,692
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 28,457,478
<PAYABLE-FOR-SECURITIES> 743,110
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 207,729
<TOTAL-LIABILITIES> 950,839
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 31,324,069
<SHARES-COMMON-STOCK> 3,227,099
<SHARES-COMMON-PRIOR> 2,451,789
<ACCUMULATED-NII-CURRENT> 156,769
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (3,079,324)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (894,875)
<NET-ASSETS> 27,506,639
<DIVIDEND-INCOME> 33,162
<INTEREST-INCOME> 2,840,680
<OTHER-INCOME> 0
<EXPENSES-NET> 414,778
<NET-INVESTMENT-INCOME> 2,459,064
<REALIZED-GAINS-CURRENT> (2,263,757)
<APPREC-INCREASE-CURRENT> 326,436
<NET-CHANGE-FROM-OPS> 521,743
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 2,306,003
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2,934,531
<NUMBER-OF-SHARES-REDEEMED> 2,380,163
<SHARES-REINVESTED> 220,942
<NET-CHANGE-IN-ASSETS> 3,048,846
<ACCUMULATED-NII-PRIOR> 6,592
<ACCUMULATED-GAINS-PRIOR> (818,451)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 177,604
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 489,764
<AVERAGE-NET-ASSETS> 27,347,758
<PER-SHARE-NAV-BEGIN> 5.120
<PER-SHARE-NII> 0.455
<PER-SHARE-GAIN-APPREC> (0.296)
<PER-SHARE-DIVIDEND> 0.429
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 4.850
<EXPENSE-RATIO> 1.30
</TABLE>
