Johnson County is a county in the north central part of the U.S. state of Wyoming. At the 2020 United States Census, the population was 8,447. The county seat is Buffalo. Kaycee is the only other incorporated town in the county. Johnson County lies to the southeast of the Bighorn Mountains along Interstate 25 and Interstate 90. The Powder River flows northward through eastern Johnson County. History Johnson County was created on December 8, 1875, as Pease County from parts of Albany, Carbon and Sweetwater Counties. It was organized in 1881. The county was named for Dr. E. L. Pease of Uinta County. In 1879, the county was renamed Johnson, for E. P. Johnson, a Cheyenne attorney. In 1888, Sheridan County was created from a portion of Johnson County. In 1890, Big Horn County was created from Johnson County along with land from Fremont County and Sheridan County. In 1911, the boundaries of Johnson County and adjacent Crook, Natrona and Weston Counties were adjusted to run along federal land survey lines. In April 1892, Johnson County was the scene of the Johnson County War, a range war between large cattle outfits and small stockgrowers. Flag Johnson County flag is based on the ikurriña; since the birth of Jean Esponda from Baigorri, there has been a large Basque population in the county. Geography According to the US Census Bureau, the county has an area of , of which is land and (0.5%) is water. Adjacent counties Sheridan County (north) Campbell County (east) Converse County (southeast) Natrona County (south) Washakie County (west) Big Horn County (northwest) Major highways Interstate 25 Interstate 90 U.S. Highway 16 U.S. Highway 87 Wyoming Highway 192 Wyoming Highway 193 Wyoming Highway 196 Wyoming Highway 387 National protected area Bighorn National Forest (part) Demographics 2000 census At the 2000 United States Census, there were 7,075 people, 2,959 households and 2,006 families in the county. The population density was 2 per square mile (1/km2). There were 3,503 housing units at an average density of 0.8 per square mile (0.3/km2). The racial makeup of the county was 97.03% White, 0.08% Black or African American, 0.64% Native American, 0.11% Asian, 0.55% from other races, and 1.58% from two or more races. 2.09% of the population were Hispanic or Latino of any race. 27.0% were of German, 15.2% English, 10.8% Irish and 7.9% American ancestry. There were 2,959 households, of which 28.70%