Jennings, KS -- U.S. city in Kansas Population (2000): 146 Housing Units (2000): 99 Land area (2000): 0.271451 sq. miles (0.703054 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.271451 sq. miles (0.703054 sq. km) FIPS code: 35375 Located within: Kansas (KS), FIPS 20 Location: 39.680197 N, 100.293918 W ZIP Codes (1990): 67643 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Jennings, KS Jennings