Fontana-on-Geneva Lake, Wisconsin, United States [Village]; population was 1,635 in 1990; housing units was 1,987 in 1990; location is 42°33'N 88°34'W; land area is 2.89 square miles (1,847 acres); water area is 1.12 square miles (716 acres); FIPS code is 26350 [SourceCBP]