Wyoming Counties by Population (2025)
by Kristen Carney 
Updated: December 17, 2024
The most populous counties in Wyoming are Laramie County with 100,984, Natrona County at 79,941, Campbell County with 47,498, Sweetwater County at 41,249, and Fremont County with 39,815. You can get the most current Census population data for all 23 Wyoming counties, sorted from the most populous counties in Wyoming to the least, according to the 2023 Population Estimates Program.
Sure, you can copy this list right into your favorite spreadsheet tool. Or save yourself formatting headaches and grab the latest Wyoming counties population data as a ready-to-use Excel™ file below. It's time to stop searching and start digging into data!
| Rank | County | Population |
|---|---|---|
| 1 | Laramie County | 100,984 |
| 2 | Natrona County | 79,941 |
| 3 | Campbell County | 47,498 |
| 4 | Sweetwater County | 41,249 |
| 5 | Fremont County | 39,815 |
| 6 | Albany County | 38,257 |
| 7 | Sheridan County | 32,519 |
| 8 | Park County | 30,735 |
| 9 | Teton County | 23,232 |
| 10 | Lincoln County | 20,880 |
| 11 | Uinta County | 20,745 |
| 12 | Carbon County | 14,334 |
| 13 | Converse County | 13,809 |
| 14 | Goshen County | 12,642 |
| 15 | Big Horn County | 12,018 |
| 16 | Sublette County | 8,969 |
| 17 | Johnson County | 8,759 |
| 18 | Platte County | 8,546 |
| 19 | Washakie County | 7,710 |
| 20 | Crook County | 7,592 |
| 21 | Weston County | 6,808 |
| 22 | Hot Springs County | 4,661 |
| 23 | Niobrara County | 2,354 |
|
United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2023. Population Division. May 2024. |
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