| Counties of Wyoming | |
|---|---|
| Location | State of Wyoming |
| Number | 23 |
| Populations | 2,301 (Niobrara) – 101,783 (Laramie) |
| Areas | 2,004 square miles (5,190 km2) (Hot Springs) – 10,426 square miles (27,000 km2) (Sweetwater) |
| Government | |
| Subdivisions |
|
There are 23counties in theU.S. state ofWyoming. There were originally five counties in theWyoming Territory: Laramie and Carter, established in 1867; Carbon and Albany established in 1868; and Uinta, an annexed portion of Utah and Idaho, extending from Montana (includingYellowstone Park) to the Wyoming–Utah boundary.[1] On July 10, 1890, Wyoming was admitted to the Union with thirteen counties in it. Ten more counties were created after statehood.[1]
Two counties were renamed after their creation. Carter County was renamed Sweetwater County on December 1, 1869.[2] Pease County, formed in 1875, was renamed Johnson County in 1879.[3]
TheFederal Information Processing Standard (FIPS) code, which is used by the United States government to uniquely identify states and counties, is provided with each entry.[4] Wyoming's code is 56, which when combined with any county code would be written as 56XXX. The FIPS code for each county links to census data for that county.[5]
| County | FIPS code[5] | County seat[6] | Est.[1] | Formed from[1] | Etymology[7] | Population[8] | Area[6][8] | Map |
|---|---|---|---|---|---|---|---|---|
| Albany County | 001 | Laramie | 1868 | One of the original five counties. | City ofAlbany, New York, from which early settlers hailed. | 39,288 | 4,274 sq mi (11,070 km2) |  |
| Big Horn County | 003 | Basin | 1896 | Parts of Sheridan County, Johnson County, and Fremont County. | Big Horn Mountains, amountain range extending into northernWyoming | 12,084 | 3,137 sq mi (8,125 km2) |  |
| Campbell County | 005 | Gillette | 1911 | Parts of Weston County and Crook County. | John Allen Campbell(1835–80), first governor of theWyoming Territory(1869–75) | 47,946 | 4,797 sq mi (12,424 km2) |  |
| Carbon County | 007 | Rawlins | 1868 | One of the original five counties. | The vast coal beds in the county. | 14,250 | 7,897 sq mi (20,453 km2) |  |
| Converse County | 009 | Douglas | 1888 | Parts of Albany County and Laramie County. | Amasa Rice Converse(1842–1885), a banker and rancher fromCheyenne, Wyoming. | 13,766 | 4,255 sq mi (11,020 km2) |  |
| Crook County | 011 | Sundance | 1875 | Parts of Laramie County and Albany County. | GeneralGeorge Crook(1828–90), who served in theAmerican Civil War and theIndian Wars. | 7,775 | 2,859 sq mi (7,405 km2) |  |
| Fremont County | 013 | Lander | 1884 | Part of Sweetwater County. | John C. Frémont(1813–90), explorer,U.S. Senator forCalifornia, and the first presidential candidate of a major party to run on a platform in opposition to slavery | 39,721 | 9,183 sq mi (23,784 km2) |  |
| Goshen County | 015 | Torrington | 1911 | Part of Laramie County. | TheLand of Goshen, aBiblical paradise. | 12,635 | 2,225 sq mi (5,763 km2) |  |
| Hot Springs County | 017 | Thermopolis | 1911 | Parts of Fremont County, Big Horn County, and Park County. | The hot springs atThermopolis within the county borders. | 4,625 | 2,004 sq mi (5,190 km2) |  |
| Johnson County | 019 | Buffalo | 1875 | Parts of Carbon County and Sweetwater County. | Edward P. Johnson(1843–1879), a lawyer fromCheyenne, Wyoming. (Initial name, Pease County, named for E. L. Pease, President of the Territorial Legislative Council.)[9] | 8,803 | 4,166 sq mi (10,790 km2) |  |
| Laramie County | 021 | Cheyenne | 1867 | One of the original five counties. | Jacques La Ramee(1785?–1821), aFrench-Canadianfur trapper. | 101,783 | 2,686 sq mi (6,957 km2) |  |
| Lincoln County | 023 | Kemmerer | 1911 | Part of Uinta County. | Abraham Lincoln(1809–65), U.S. President(1861–65) | 21,000 | 4,069 sq mi (10,539 km2) |  |
| Natrona County | 025 | Casper | 1888 | Part of Carbon County. | Thenatron, or soda deposits found within the county's borders.Natrona meansnatron inSpanish. | 80,410 | 5,340 sq mi (13,831 km2) |  |
| Niobrara County | 027 | Lusk | 1911 | Part of Converse County. | TheNiobrara River, which flows through the state.Niobrara isOmaha forflat or broad river. | 2,301 | 2,626 sq mi (6,801 km2) |  |
| Park County | 029 | Cody | 1909 | Part of Big Horn County. | Yellowstone National Park | 31,082 | 6,943 sq mi (17,982 km2) |  |
| Platte County | 031 | Wheatland | 1911 | Part of Laramie County. | North Platte River.Plate isFrench forflat. | 8,512 | 2,085 sq mi (5,400 km2) |  |
| Sheridan County | 033 | Sheridan | 1888 | Part of Johnson County. | Philip Sheridan (1831–88),American Civil War general. | 32,978 | 2,523 sq mi (6,535 km2) |  |
| Sublette County | 035 | Pinedale | 1921 | Parts of Fremont County and Lincoln County. | William Sublette, pioneer and fur trapper. | 8,965 | 4,882 sq mi (12,644 km2) |  |
| Sweetwater County | 037 | Green River | 1867 | One of the original five counties. | Sweetwater River (a tributary of theNorth Platte River), which flows through the state. (Original name, Carter County, named for sutler William Alexander Carter.)[10] | 41,273 | 10,426 sq mi (27,003 km2) |  |
| Teton County | 039 | Jackson | 1921 | Part of Lincoln County. | Teton Range, a smallmountain range of theRocky Mountains at the Wyoming–Idaho state line | 23,272 | 4,008 sq mi (10,381 km2) |  |
| Uinta County | 041 | Evanston | 1869 | One of the original five counties. | TheUinta Mountains, named in turn after theUintahNative American people. | 20,621 | 2,082 sq mi (5,392 km2) |  |
| Washakie County | 043 | Worland | 1911 | Part of Big Horn County. | Washakie(1804–1900), a leader ofShoshoneNative American tribe. | 7,662 | 2,240 sq mi (5,802 km2) |  |
| Weston County | 045 | Newcastle | 1890 | Part of Crook County | John Weston (1831–95), who was responsible for bringing the first railroad to the area. | 6,866 | 2,398 sq mi (6,211 km2) |  |
