Data / Rankings / Population / Counties in Wyoming

Counties in Wyoming by population

Laramie County had the highest population of 23 counties in 2022, at 100,806. Niobrara County had the lowest, at 2,341. The median was 14,509 and the figure for Wyoming was 581,742. Source: the U.S. Census Bureau.

Highest100,806Laramie County
Lowest2,341Niobrara County
Median14,50923 counties
Wyoming581,742History

All counties, 2022

CSVChart (SVG)

Laramie CountyLaramie County: 100,806 persons100,806Natrona CountyNatrona County: 79,585 persons79,585Campbell CountyCampbell County: 47,058 persons47,058Sweetwater CountySweetwater County: 41,319 persons41,319Fremont CountyFremont County: 39,519 persons39,519Albany CountyAlbany County: 38,253 persons38,253Sheridan CountySheridan County: 32,050 persons32,050Park CountyPark County: 30,526 persons30,526Teton CountyTeton County: 23,324 persons23,324Uinta CountyUinta County: 20,715 persons20,715Lincoln CountyLincoln County: 20,674 persons20,674Carbon CountyCarbon County: 14,509 persons14,509Converse CountyConverse County: 13,773 persons13,773Goshen CountyGoshen County: 12,633 persons12,633Big Horn CountyBig Horn County: 11,870 persons11,870Sublette CountySublette County: 8,760 persons8,760Johnson CountyJohnson County: 8,736 persons8,736Platte CountyPlatte County: 8,653 persons8,653Washakie CountyWashakie County: 7,738 persons7,738Crook CountyCrook County: 7,418 persons7,418Weston CountyWeston County: 6,870 persons6,870Hot Springs CountyHot Springs County: 4,612 persons4,612Niobrara CountyNiobrara County: 2,341 persons2,341
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2022
persons		Change on 2021
1Laramie County100,806-0%
2Natrona County79,585-0.1%
3Campbell County47,058+1.1%
4Sweetwater County41,319-0.8%
5Fremont County39,519+0.3%
6Albany County38,253+1.1%
7Sheridan County32,050+1.2%
8Park County30,526+1.3%
9Teton County23,324-1.2%
10Uinta County20,715+0.1%
11Lincoln County20,674+2.5%
12Carbon County14,509-1.4%
13Converse County13,773+0.7%
14Goshen County12,633+0.5%
15Big Horn County11,870+1.9%
16Sublette County8,760+0.4%
17Johnson County8,736+1.2%
18Platte County8,653-0.3%
19Washakie County7,738+0.2%
20Crook County7,418+1.5%
21Weston County6,870+1.8%
22Hot Springs County4,612+0.3%
23Niobrara County2,341-3.1%

Other periods

About this ranking

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

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. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

Which county has the highest population?

Laramie County, with 100,806 in 2022, according to the U.S. Census Bureau.

Which county has the lowest population?

Niobrara County, with 2,341 in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved 2026-10-08.

Population: other rankings

Counties in Wyoming: more rankings