Counties in Wyoming by population

Name: Counties in Wyoming by population, 2023
Creator: U.S. Census Bureau
License: Public domain (US federal government work, citation requested)

Laramie County had the highest population of 23 counties in 2023, at 100,995. Niobrara County had the lowest, at 2,320. The median was 14,293 and the figure for Wyoming was 584,666. Source: the U.S. Census Bureau.

Highest100,995Laramie County

Lowest2,320Niobrara County

Median14,29323 counties

Wyoming584,666History

All counties, 2023

CSV Chart (SVG)

persons. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

Rank	Counties	2023 persons	Change on 2022
1	Laramie County	100,995	+0.2%
2	Natrona County	79,976	+0.5%
3	Campbell County	47,580	+1.1%
4	Sweetwater County	41,294	-0.1%
5	Fremont County	39,754	+0.6%
6	Albany County	38,337	+0.2%
7	Sheridan County	32,617	+1.8%
8	Park County	30,817	+1%
9	Teton County	23,354	+0.1%
10	Lincoln County	20,893	+1.1%
11	Uinta County	20,693	-0.1%
12	Carbon County	14,293	-1.5%
13	Converse County	13,873	+0.7%
14	Goshen County	12,664	+0.2%
15	Big Horn County	12,034	+1.4%
16	Sublette County	8,968	+2.4%
17	Johnson County	8,799	+0.7%
18	Platte County	8,604	-0.6%
19	Washakie County	7,731	-0.1%
20	Crook County	7,591	+2.3%
21	Weston County	6,828	-0.6%
22	Hot Springs County	4,651	+0.8%
23	Niobrara County	2,320	-0.9%

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.

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 using official data, and cite the source.

rank_places {"indicator":"population","level":"province","within":"Wyoming","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population&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?

Laramie County, with 100,995 in 2023, according to the U.S. Census Bureau.

Which county has the lowest population?

Niobrara County, with 2,320 in 2023.

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.