Thomas -- U.S. County in Kansas Population (2000): 8180 Housing Units (2000): 3562 Land area (2000): 1074.784690 sq. miles (2783.679450 sq. km) Water area (2000): 0.111285 sq. miles (0.288228 sq. km) Total area (2000): 1074.895975 sq. miles (2783.967678 sq. km) Located within: Kansas (KS), FIPS 20 Location: 39.367297 N, 101.026354 W Headwords: Thomas Thomas, KS Thomas County Thomas County, KS