List of Counties in Utah

Counties

County	FIPS code	County seat	Established	Origin	Etymology	Population (2010)	Area (2010)
Beaver County	001	Beaver	1856	Part of Iron County	The many beavers in the area	70036629000000000006,629	70032590000000000002,590 sq mi (70036708000000000006,708 km2)
Box Elder County	003	Brigham City	1856	Part of Weber County	The many Box Elder trees in the area	700449975000000000049,975	70035746000000000005,746 sq mi (700414882000000000014,882 km2)
Cache County	005	Logan	1857	Part of Weber County	Caches of furs made by Rocky Mountain Fur Company trappers	7005112656000000000112,656	70031165000000000001,165 sq mi (70033017000000000003,017 km2)
Carbon County	007	Price	1894	Part of Emery County	The vast coal beds in the county.	700421403000000000021,403	70031478000000000001,478 sq mi (70033828000000000003,828 km2)
Daggett County	009	Manila	1919	Part of Uintah County	Ellsworth Daggett (1810–1880), the first Utah Surveyor General	70031059000000000001,059	7002697000000000000697 sq mi (70031805000000000001,805 km2)
Davis County	011	Farmington	1850	Original county of State of Deseret	Daniel C. Davis (1804–1850), Mormon Battalion captain	7005295332000000000295,332	7002299000000000000299 sq mi (7002774000000000000774 km2)
Duchesne County	013	Duchesne	1913	Part of Wasatch County	Uncertain; likely origins are a Ute word translated "dark canyon", the French and Indian War site of Fort Duquesne (the county's initial settlement was also a fortress), the corrupted name of an area Indian chief, or the name of French fur trapper and explorer.	700418607000000000018,607	70033241000000000003,241 sq mi (70038394000000000008,394 km2)
Emery County	015	Castle Dale	1880	Part of Sanpete County	George W. Emery (1830–1909), Governor of the Utah Territory from 1875–1880	700410976000000000010,976	70034462000000000004,462 sq mi (700411557000000000011,557 km2)
Garfield County	017	Panguitch	1882	Part of Iron County	James A. Garfield (1831–1881), President of the United States in 1881	70035172000000000005,172	70035175000000000005,175 sq mi (700413403000000000013,403 km2)
Grand County	019	Moab	1890	Part of Emery County	The Grand River, since renamed to the Colorado River	70039225000000000009,225	70033672000000000003,672 sq mi (70039510000000000009,510 km2)
Iron County	021	Parowan	1850	Original county of State of Deseret	Iron mines west of Cedar City.	700446163000000000046,163	70033297000000000003,297 sq mi (70038539000000000008,539 km2)
Juab County	023	Nephi	1852	Original county of Territory of Utah	A Native American word translated "thirsty valley"	700410246000000000010,246	70033392000000000003,392 sq mi (70038785000000000008,785 km2)
Kane County	025	Kanab	1864	Part of Washington County	Thomas L. Kane (1822–1883), U.S. Army officer who spoke in favor of the Mormon migration and settlement of Utah	70037125000000000007,125	70033990000000000003,990 sq mi (700410334000000000010,334 km2)
Millard County	027	Fillmore	1851	Original county of Territory of Utah	Millard Fillmore (1800–1874), President of the United States from 1850 to 1853	700412503000000000012,503	70036572000000000006,572 sq mi (700417021000000000017,021 km2)
Morgan County	029	Morgan	1862	Part of Davis County	Jedediah Morgan Grant (1816–1856), an Apostle of The Church of Jesus Christ of Latter-day Saints	70039469000000000009,469	7002609000000000000609 sq mi (70031577000000000001,577 km2)
Piute County	031	Junction	1865	Part of Beaver County	The Piute tribe of Native Americans who lived in the area	70031556000000000001,556	7002758000000000000758 sq mi (70031963000000000001,963 km2)
Rich County	033	Randolph	1864	Part of Cache County	Charles C. Rich (1809–1883), an Apostle of The Church of Jesus Christ of Latter-day Saints	70032264000000000002,264	70031029000000000001,029 sq mi (70032665000000000002,665 km2)
Salt Lake County	035	Salt Lake City	1849	Original county of State of Deseret	The Great Salt Lake, the largest terminal lake in the Western Hemisphere	70061029665000000001,029,665	7002742000000000000742 sq mi (70031922000000000001,922 km2)
San Juan County	037	Monticello	1880	Parts of Kane, Iron, and Piute counties	Named for the San Juan River, a 400-mile (640 km) tributary of the Colorado river located in southern Colorado and Utah	700414746000000000014,746	70037820000000000007,820 sq mi (700420254000000000020,254 km2)
Sanpete County	039	Manti	1849	Original county of State of Deseret	Uncertain, possibly from a Ute Chief named San Pitch	700427882000000000027,882	70031590000000000001,590 sq mi (70034118000000000004,118 km2)
Sevier County	041	Richfield	1862	Part of Sanpete County	The Sevier River, a 280-mile (450 km) mile river in central Utah	700420802000000000020,802	70031911000000000001,911 sq mi (70034949000000000004,949 km2)
Summit County	043	Coalville	1854	Part of Salt Lake and Green River counties	High elevations in the county, which includes 39 of Utah's highest peaks	700436324000000000036,324	70031872000000000001,872 sq mi (70034848000000000004,848 km2)
Tooele County	045	Tooele	1849	Original county of State of Deseret	Uncertain, either from the Goshute Tribe Chief Tuilla or the Tules plant that grew in the marshes	700458218000000000058,218	70036941000000000006,941 sq mi (700417977000000000017,977 km2)
Uintah County	047	Vernal	1880	Part of Wasatch	The Uintah band of the Ute tribe who lived in the area	700432588000000000032,588	70034480000000000004,480 sq mi (700411603000000000011,603 km2)
Utah County	049	Provo	1849	Original county of State of Deseret	Yuta, the Spanish name for the Ute tribe	7005516564000000000516,564	70032003000000000002,003 sq mi (70035188000000000005,188 km2)
Wasatch County	051	Heber City	1862	Part of Utah and Sanpete counties	A Native American word meaning "mountain pass", also the name of the Wasatch Range	700423530000000000023,530	70031176000000000001,176 sq mi (70033046000000000003,046 km2)
Washington County	053	St. George	1852	Original county of Territory of Utah	George Washington (1732–1799), President of the United States from 1789 to 1797	7005138115000000000138,115	70032426000000000002,426 sq mi (70036283000000000006,283 km2)
Wayne County	055	Loa	1892	Part of Piute County	Wayne Robinson, the son of Utah state legislator Willis Robinson, who was killed by a horse while both men traveled to a legislative session.	70032589000000000002,589	70032461000000000002,461 sq mi (70036374000000000006,374 km2)
Weber County	057	Ogden	1849	Original county of State of Deseret	The Weber River, a 125 miles (201 km) tributary of the Great Salt Lake	7005231236000000000231,236	7002576000000000000576 sq mi (70031492000000000001,492 km2)