Natrona County, Wyoming

Natrona County population, land area and income

Natrona County had 80,410 residents in the Census Vintage 2024 estimate, on 5,340.5 square miles of land. It ranks 2nd of 23 in Wyoming by population and 5th by land area. That works out to 15.1 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, so Natrona County is 5.6 times that size.

Its SAIPE 2023 median household income of $73,110 is in the top quarter among 3,143 counties with an estimate.

How Natrona County's population changed since 2020

Natrona County gained 110 residents between the July 2020 and July 2024 estimates, a rise of 0.1%. That ranks 15th 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, Natrona County recorded 3,638 births and 3,669 deaths, a natural change of -31. Net international migration added +34 and net domestic migration, people moving to or from other US counties, came to +479. The largest single component was domestic migration, which added 479 people.

Where Natrona County is

The Census internal point of Natrona County is at 42.977600, -106.768200. 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 Natrona County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Natrona County

4 incorporated places of 1,000+ people have residents in Natrona County, 69,263 people together, or 86% of the county. Each figure counts only the part of the town inside Natrona County; towns marked "part" extend into another county. The largest is Casper with 58,823.

Counties bordering Natrona County

The Census 2024 county adjacency file lists 5 neighbors for Natrona County. The most populous is Fremont County, WY, with 39,721 residents. Distances run between Census internal points in a straight line.

• Fremont County

  39,721 people

  93 mi W

• Carbon County

  14,250 people

  88 mi S

• Converse County

  13,766 people

  63 mi E

• Johnson County

  8,803 people

  74 mi N

• Washakie County

  7,662 people

  77 mi NW

Distance to Cheyenne and the nearest big city

Cheyenne is 161.6 miles SE of Natrona County's internal point in a straight line. The nearest place of 100,000 or more is Fort Collins, CO (population 170,924), 189.4 miles away. The nearest place of 10,000 or more is Casper, WY (population 58,823), 24.5 miles away.

Natrona County FIPS code

The FIPS code of Natrona County is 56025: state code 56 for Wyoming plus county code 025. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $73,110.