Chillicothe, IA -- U.S. city in Iowa Population (2000): 90 Housing Units (2000): 44 Land area (2000): 0.227457 sq. miles (0.589112 sq. km) Water area (2000): 0.005772 sq. miles (0.014949 sq. km) Total area (2000): 0.233229 sq. miles (0.604061 sq. km) FIPS code: 13215 Located within: Iowa (IA), FIPS 19 Location: 41.086443 N, 92.528751 W ZIP Codes (1990): 52548 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Chillicothe, IA Chillicothe