Wyoming
Postal abbreviation WY. 195 ZIP codes across 23 counties.
| Population | 582,397 |
|---|---|
| Postal abbreviation | WY |
| ZIP codes | 195 ZIP codes → |
| Area codes | 307 |
| Time zone | Mountain |
| Counties | 23 |
Largest cities by population
Cheyenne · 65,239Casper · 58,839Gillette · 33,431Laramie · 32,234Rock Springs · 23,127Sheridan · 19,285
Largest counties by population
Laramie County · 101,060Natrona County · 79,977Campbell County · 47,240Sweetwater County · 41,542Fremont County · 39,533Albany County · 38,249Sheridan County · 32,055Park County · 30,449Teton County · 23,396Uinta County · 20,644
Counties in Wyoming
Albany CountyBig Horn CountyCampbell CountyCarbon CountyConverse CountyCrook CountyFremont CountyGoshen CountyHot Springs CountyJohnson CountyLaramie CountyLincoln CountyNatrona CountyNiobrara CountyPark CountyPlatte CountySheridan CountySublette CountySweetwater CountyTeton CountyUinta CountyWashakie CountyWeston County
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.