Tri-Lakes, Indiana, United States [CDP]; population was 3,299 in 1990; housing units was 1,450 in 1990; location is 41°13'N 85°29'W; land area is 35.16 square miles (22,504 acres); water area is 0.90 square miles (575 acres); FIPS code is 76526 [SourceCBP]