<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000877232
<NAME> GREEN CENTURY FUNDS
<SERIES>
<NUMBER> 2
<NAME> BALANCED FUND
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> JUL-31-2000
<PERIOD-START> AUG-01-1999
<PERIOD-END> JUL-31-2000
<INVESTMENTS-AT-COST> 50,392,825
<INVESTMENTS-AT-VALUE> 53,459,048
<RECEIVABLES> 2,860,194
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 56,319,242
<PAYABLE-FOR-SECURITIES> 1,065,708
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 172,160
<TOTAL-LIABILITIES> 1,237,868
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 41,333,681
<SHARES-COMMON-STOCK> 2,338,107
<SHARES-COMMON-PRIOR> 1,250,985
<ACCUMULATED-NII-CURRENT> 17,602
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 10,663,868
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 3,066,223
<NET-ASSETS> 55,081,374
<DIVIDEND-INCOME> 62,222
<INTEREST-INCOME> 899,880
<OTHER-INCOME> 41,770
<EXPENSES-NET> (835,764)
<NET-INVESTMENT-INCOME> 168,108
<REALIZED-GAINS-CURRENT> 12,097,000
<APPREC-INCREASE-CURRENT> 1,608,881
<NET-CHANGE-FROM-OPS> 13,873,989
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (155,784)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2,013,731
<NUMBER-OF-SHARES-REDEEMED> 931,730
<SHARES-REINVESTED> 5,121
<NET-CHANGE-IN-ASSETS> 39,812,126
<ACCUMULATED-NII-PRIOR> 5,312
<ACCUMULATED-GAINS-PRIOR> (1,433,166)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 253,330
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 835,764
<AVERAGE-NET-ASSETS> 33,707,890
<PER-SHARE-NAV-BEGIN> 12.21
<PER-SHARE-NII> 0.07
<PER-SHARE-GAIN-APPREC> 11.35
<PER-SHARE-DIVIDEND> 0.07
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 23.56
<EXPENSE-RATIO> 2.48
</TABLE>
