23 Counties — wyoming
| County | Type | Population | Land area |
|---|
| albany | County | 32,014 | 4,274 sq mi |
| big horn | County | 11,461 | 3,137 sq mi |
| campbell | County | 33,698 | 4,797 sq mi |
| carbon | County | 15,639 | 7,897 sq mi |
| converse | County | 12,052 | 4,255 sq mi |
| crook | County | 5,887 | 2,859 sq mi |
| fremont | County | 35,804 | 9,183 sq mi |
| goshen | County | 12,538 | 2,226 sq mi |
| hot springs | County | 4,882 | 2,004 sq mi |
| johnson | County | 7,075 | 4,166 sq mi |
| laramie | County | 81,607 | 2,686 sq mi |
| lincoln | County | 14,573 | 4,069 sq mi |
| natrona | County | 66,533 | 5,340 sq mi |
| niobrara | County | 2,407 | 2,626 sq mi |
| park | County | 25,786 | 6,943 sq mi |
| platte | County | 8,807 | 2,085 sq mi |
| sheridan | County | 26,560 | 2,523 sq mi |
| sublette | County | 5,920 | 4,882 sq mi |
| sweetwater | County | 37,613 | 10,426 sq mi |
| teton | County | 18,251 | 4,008 sq mi |
| uinta | County | 19,742 | 2,082 sq mi |
| washakie | County | 8,289 | 2,240 sq mi |
| weston | County | 6,644 | 2,398 sq mi |