Largest Cities in Wyoming: Ranked by Population
The largest city in Wyoming in our data is Cheyenne, WY, with an estimated 79,484 people, followed by Casper, WY (67,598) and Gillette, WY (36,032). This list ranks the top 18 places among the 18 Wyoming communities with at least 5,000 residents.
What are the top 18 in Wyoming?
| # | City | County | Population | Per sq mi |
|---|---|---|---|---|
| 1 | Cheyenne, WY | Laramie County | 79,484 | 1,997 |
| 2 | Casper, WY | Natrona County | 67,598 | 2,183 |
| 3 | Gillette, WY | Campbell County | 36,032 | 1,393 |
| 4 | Laramie, WY | Albany County | 33,929 | 1,782 |
| 5 | Rock Springs, WY | Sweetwater County | 25,913 | 1,168 |
| 6 | Sheridan, WY | Sheridan County | 19,320 | 1,414 |
| 7 | Jackson, WY | Teton County | 12,576 | 3,569 |
| 8 | Riverton, WY | Fremont County | 12,445 | 1,041 |
| 9 | Green River, WY | Sweetwater County | 11,906 | 857 |
| 10 | Evanston, WY | Uinta County | 11,641 | 1,129 |
| 11 | Cody, WY | Park County | 9,788 | 956 |
| 12 | Rawlins, WY | Carbon County | 8,521 | 1,031 |
| 13 | Lander, WY | Fremont County | 7,458 | 793 |
| 14 | Torrington, WY | Goshen County | 7,289 | 1,430 |
| 15 | Douglas, WY | Converse County | 6,421 | 976 |
| 16 | Ranchettes, WY | Laramie County | 6,289 | 127 |
| 17 | Powell, WY | Park County | 6,253 | 1,440 |
| 18 | Worland, WY | Washakie County | 5,024 | 1,093 |
How big are the largest cities in Wyoming?
Of the 18 places with pages, 0 have more than 100,000 residents, 5 have between 25,000 and 100,000, and 13 have fewer than 25,000. The median place has about 11,774 people. The ten largest places account for about 84% of the combined population of all pages, which shows how concentrated the state's population is across communities. Laramie County contributes 2 of the top 18.
Which counties do the top 18 belong to?
The 18 places on this list are spread across 14 counties of Wyoming. Laramie County has 2 (Cheyenne, Ranchettes); Sweetwater County has 2 (Rock Springs, Green River); Fremont County has 2 (Riverton, Lander). Counties with several entries are usually centers of a metropolitan area, where one large city is surrounded by many suburbs that each pass the 5,000-resident threshold.
How does Wyoming compare with the rest of the country?
The median Wyoming place with a page has about 11,774 residents, compared with about 13,459 nationwide, so the state's typical community is smaller than the national typical place. Cheyenne, WY ranks 591st among all US places by estimated population in our data. The state has 186 communities in total, of which 18 reach 5,000 residents. See the national ranking of the largest cities for comparison.
Quick answers about Wyoming cities
- Which is the largest city in Wyoming? Cheyenne (79,484 people).
- How many Wyoming cities have more than 100,000 people? 0 in our data.
- How many have 25,000 to 100,000? 5.
- What is the typical size? About 11,774 residents for a place with a page.
How is this ranking made?
The data comes from the SimpleMaps US Cities Database, which gives each place an estimated population and a density in people per square kilometer. We convert density to people per square mile and rank the places with at least 5,000 residents. Boundaries matter: a city that includes large parks or farmland scores lower on density than a compact city of the same size, and population estimates can include areas that share a city's ZIP codes. Read why population figures differ and how density is calculated before you quote a number.
Where to go next
Rankings use dataset estimates, not official counts.