Johnson -- U.S. County in Wyoming Population (2000): 7075 Housing Units (2000): 3503 Land area (2000): 4166.283482 sq. miles (10790.624222 sq. km) Water area (2000): 8.422996 sq. miles (21.815458 sq. km) Total area (2000): 4174.706478 sq. miles (10812.439680 sq. km) Located within: Wyoming (WY), FIPS 56 Location: 44.072873 N, 106.592303 W Headwords: Johnson Johnson, WY Johnson County Johnson County, WY