Weir, KS -- U.S. city in Kansas Population (2000): 780 Housing Units (2000): 352 Land area (2000): 1.046565 sq. miles (2.710591 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.046565 sq. miles (2.710591 sq. km) FIPS code: 76350 Located within: Kansas (KS), FIPS 20 Location: 37.308768 N, 94.774289 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Weir, KS Weir