How many counties in Wyoming? All 23 listed
Quick answer
Wyoming has 23 counties and county equivalents holding 579,761 residents. The most populous county in Wyoming is Laramie County with 100,661 residents; the smallest is Niobrara County. County boundaries divide the state's land area — measured in square miles by the Census Bureau — into the units used for property assessment, elections and local sales tax. The statewide sales tax base rate is 4%, before county and city add-ons.
All 23 counties
Ranked by population, Census 2019-2023 ACS 5-year estimates.
| County | Population | Median income | Median home value | Median rent |
|---|---|---|---|---|
| Laramie County | 100,661 | $77,884 | $324,900 | $1,080 |
| Natrona County | 79,735 | $71,247 | $260,400 | $973 |
| Campbell County | 47,018 | $95,253 | $266,400 | $952 |
| Sweetwater County | 41,786 | $76,464 | $242,900 | $913 |
| Fremont County | 39,472 | $64,646 | $252,700 | $858 |
| Albany County | 37,713 | $59,881 | $322,100 | $936 |
| Sheridan County | 31,585 | $70,855 | $352,200 | $950 |
| Park County | 30,109 | $70,533 | $374,200 | $933 |
| Teton County | 23,358 | $112,681 | $1,371,900 | $1,758 |
| Uinta County | 20,605 | $82,672 | $255,400 | $882 |
| Lincoln County | 20,158 | $86,092 | $334,500 | $868 |
| Carbon County | 14,549 | $66,721 | $214,500 | $894 |
| Converse County | 13,759 | $79,164 | $269,700 | $930 |
| Goshen County | 12,587 | $64,882 | $234,600 | $759 |
| Big Horn County | 11,737 | $60,547 | $198,200 | $876 |
| Sublette County | 8,806 | $82,791 | $350,100 | $1,116 |
| Platte County | 8,606 | $66,299 | $248,900 | $745 |
| Johnson County | 8,602 | $63,905 | $296,000 | $1,081 |
| Washakie County | 7,708 | $62,648 | $188,600 | $725 |
| Crook County | 7,339 | $71,209 | $276,800 | $881 |
| Weston County | 6,835 | $87,545 | $214,000 | $694 |
| Hot Springs County | 4,618 | $64,375 | $214,400 | $976 |
| Niobrara County | 2,415 | $48,987 | $194,200 | $775 |
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
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