Wyoming Counties by Population (2026)
2026 Pop.
10K
20K
30K
40K
50K
60K
70K
80K
90K
100K
Top 5 Most Populous Counties
104,189
80,781
48,198
41,184
39,264
| County | 2026 Pop. ↓ | Area (mi²) | Density (/mi²) | Change (2020) |
|---|---|---|---|---|
| Laramie County | 104,189 | 2.7K | 39 | 3.44% |
| Natrona County | 80,781 | 5.3K | 15 | 0.6% |
| Campbell County | 48,198 | 4.8K | 10 | 2.23% |
| Sweetwater County | 41,184 | 10.4K | 3.9 | -2.39% |
| Fremont County | 39,264 | 9.2K | 4.3 | 0.18% |
| Albany County | 38,571 | 4.3K | 9.0 | 3.95% |
| Sheridan County | 33,549 | 2.5K | 13 | 8.2% |
| Park County | 31,235 | 6.9K | 4.5 | 5.27% |
| Teton County | 23,321 | 4K | 5.8 | -0.26% |
| Lincoln County | 21,372 | 4.1K | 5.2 | 8.74% |
| Uinta County | 20,803 | 2.1K | 10.0 | 1.67% |
| Carbon County | 13,942 | 7.9K | 1.8 | -3.9% |
| Converse County | 13,858 | 4.3K | 3.3 | 0.8% |
| Goshen County | 12,641 | 2.2K | 5.7 | 0.97% |
| Big Horn County | 12,034 | 3.1K | 3.8 | 4.83% |
| Johnson County | 8,987 | 4.2K | 2.2 | 6.12% |
| Sublette County | 8,909 | 4.9K | 1.8 | 1.93% |
| Platte County | 8,705 | 2.1K | 4.2 | 0.85% |
| Crook County | 7,913 | 2.9K | 2.8 | 10.16% |
| Washakie County | 7,557 | 2.2K | 3.4 | -1.33% |
| Weston County | 6,810 | 2.4K | 2.8 | -0.15% |
| Hot Springs County | 4,594 | 2K | 2.3 | -0.58% |
| Niobrara County | 2,367 | 2.6K | 0.90 | -3.43% |
Sources
- US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
- American Community Survey (2009 - 2013)
- Census QuickFacts
- Historical Populations of States and Counties (1790 - 1990)