San Ildefonso Pueblo, New Mexico, United States [CDP]; population was 447 in 1990; housing units was 184 in 1990; location is 35°54'N 106°8'W; land area is 3.09 square miles (1,978 acres); water area is 0.19 square miles (120 acres); FIPS code is 68010 [SourceCBP]