Little Rock, IA -- U.S. city in Iowa Population (2000): 489 Housing Units (2000): 232 Land area (2000): 0.778774 sq. miles (2.017015 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.778774 sq. miles (2.017015 sq. km) FIPS code: 45795 Located within: Iowa (IA), FIPS 19 Location: 43.442628 N, 95.883931 W ZIP Codes (1990): 51243 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Little Rock, IA Little Rock