Johnson County, Wyoming

Johnson County population, land area and income

Johnson County had 8,803 residents in the Census Vintage 2024 estimate, on 4,154.2 square miles of land. It ranks 17th of 23 in Wyoming by population and 10th by land area. That works out to 2.1 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Wyoming has 14,250 residents; Johnson County is somewhat smaller.

Its SAIPE 2023 median household income of $66,100 is above the national county median among 3,143 counties with an estimate.

How Johnson County's population changed since 2020

Johnson County gained 334 residents between the July 2020 and July 2024 estimates, a rise of 3.9%. That ranks 7th of 23 in Wyoming for growth. The median Wyoming county changed by +0.9%, and the state as a whole by +1.7%.

Since the April 2020 estimates base, Johnson County recorded 325 births and 415 deaths, a natural change of -90. Net international migration added -7 and net domestic migration, people moving to or from other US counties, came to +444. The largest single component was domestic migration, which added 444 people.

Where Johnson County is

The Census internal point of Johnson County is at 44.044000, -106.588500. It sits in UTM zone 13N. The map shades Wyoming's 23 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Johnson County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Johnson County

One incorporated place of 1,000+ people has residents in Johnson County, 4,655 people together, or 53% of the county. Each figure counts only the part of the town inside Johnson County; towns marked "part" extend into another county. The largest is Buffalo with 4,655.

Counties bordering Johnson County

The Census 2024 county adjacency file lists 6 neighbors for Johnson County. The most populous is Natrona County, WY, with 80,410 residents. Distances run between Census internal points in a straight line.

• Natrona County

  80,410 people

  74 mi S

• Campbell County

  47,946 people

  54 mi ENE

• Sheridan County

  32,978 people

  53 mi NNW

• Converse County

  13,766 people

  91 mi SE

• Big Horn County

  12,084 people

  77 mi WNW

• Washakie County

  7,662 people

  55 mi WSW

Distance to Cheyenne and the nearest big city

Cheyenne is 219.9 miles SSE of Johnson County's internal point in a straight line. The nearest place of 100,000 or more is Billings, MT (population 121,483), 154.2 miles away. The nearest place of 10,000 or more is Sheridan, WY (population 19,813), 55.2 miles away.

Johnson County FIPS code

The FIPS code of Johnson County is 56019: state code 56 for Wyoming plus county code 019. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $66,100.