Counties in Wyoming by population density, 2025

Laramie County had the highest population density of 23 counties in 2025, at 14.8 inhabitants per km². Niobrara County had the lowest, at 0.3 inhabitants per km². The median was 1.6 inhabitants per km² and the figure for Wyoming was 2.3 inhabitants per km². Source: the U.S. Census Bureau.

Highest14.8Laramie County
Median1.623 counties
Wyoming2.3History

All counties, 2025

CSVChart (SVG)

Laramie CountyLaramie County: 14.8 inhabitants per km²14.8Natrona CountyNatrona County: 5.8 inhabitants per km²5.8Sheridan CountySheridan County: 5.1 inhabitants per km²5.1Campbell CountyCampbell County: 3.9 inhabitants per km²3.9Uinta CountyUinta County: 3.8 inhabitants per km²3.8Albany CountyAlbany County: 3.5 inhabitants per km²3.5Teton CountyTeton County: 2.3 inhabitants per km²2.3Goshen CountyGoshen County: 2.2 inhabitants per km²2.2Lincoln CountyLincoln County: 2 inhabitants per km²2Park CountyPark County: 1.7 inhabitants per km²1.7Fremont CountyFremont County: 1.7 inhabitants per km²1.7Platte CountyPlatte County: 1.6 inhabitants per km²1.6Sweetwater CountySweetwater County: 1.5 inhabitants per km²1.5Big Horn CountyBig Horn County: 1.5 inhabitants per km²1.5Washakie CountyWashakie County: 1.3 inhabitants per km²1.3Converse CountyConverse County: 1.3 inhabitants per km²1.3Weston CountyWeston County: 1.1 inhabitants per km²1.1Crook CountyCrook County: 1.1 inhabitants per km²1.1Hot Springs CountyHot Springs County: 0.9 inhabitants per km²0.9Johnson CountyJohnson County: 0.8 inhabitants per km²0.8Sublette CountySublette County: 0.7 inhabitants per km²0.7Carbon CountyCarbon County: 0.7 inhabitants per km²0.7Niobrara CountyNiobrara County: 0.3 inhabitants per km²0.3
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2025
inhabitants per km²
Change on 2024
1Laramie County14.8+1.2%
2Natrona County5.8+0.3%
3Sheridan County5.1+0.9%
4Campbell County3.9+0.1%
5Uinta County3.8+0.3%
6Albany County3.50%
7Teton County2.3-0%
8Goshen County2.20%
9Lincoln County2+1%
10Park County1.7+0.2%
11Fremont County1.7-0.5%
12Platte County1.6+0.9%
13Sweetwater County1.5-0.2%
14Big Horn County1.5+0.1%
15Washakie County1.3-0.5%
16Converse County1.3+0.2%
17Weston County1.1-0.5%
18Crook County1.1+0.8%
19Hot Springs County0.9-0.1%
20Johnson County0.8+0.9%
21Sublette County0.7-0.1%
22Carbon County0.7-0.6%
23Niobrara County0.3+1.2%

Other periods

About this ranking

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Wyoming by population density using official data, and cite the source.
rank_places {"indicator":"population_density","level":"province","within":"Wyoming","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_density&level=province&within=Wyoming&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest population density?

Laramie County, with 14.8 inhabitants per km² in 2025, according to the U.S. Census Bureau.

Which county has the lowest population density?

Niobrara County, with 0.3 inhabitants per km² in 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved 2026-10-09.

Population density: other rankings

Counties in Wyoming: more rankings