Counties

Alamosa County, named for the Spanish word for “ cottonwood grove,” is located in the high San Luis Valley of south central Colorado. At 7,544 feet, the valley is bordered by the Sangre de Cristo Mountains on the east and the San Juan Mountains to the west. Alamosa County encompasses 723 square...

Archuleta County covers 1,356 square miles of the San Juan Mountains in southwestern Colorado. The county is bordered to the north by Hinsdale , Mineral , and Rio Grande Counties; to the west by La Plata County ; to the east by Conejos County ; and to the south by the state of New Mexico. Before...

Bent County is a rural, agricultural county in southeastern Colorado covering 1,541 square miles of the Great Plains and the fertile Arkansas River valley. It is bordered by Kiowa County to the north, Prowers County to the east, Otero County to the west, and Las Animas and Baca Counties to the...

Chaffee County lies in central Colorado on the eastern slope of the Rocky Mountains and along the Upper Arkansas River valley. It is bordered by Lake and Park Counties to the north, Park and Fremont Counties to the east, Saguache County to the south, and Gunnison County to the west. Chaffee County’...

The City and County of Broomfield encompasses about thirty-three square miles on the Front Range in central Colorado, mainly between US Highway 36 and Interstate 25 southeast of Boulder . Broomfield supports a population of 65,065 and borders Boulder County to the northwest, Weld County to the...

Colorado is divided into seven Congressional districts according to population, with each district represented by an elected member of the United States House of Representatives. Colorado representatives serve two-year terms, as required by the US Constitution. There are no term limits for members...

Costilla County lies in south-central Colorado within the San Luis Valley . It covers nearly 1,227 square miles and ranges in elevation from 8,400 to 10,300 feet. Costilla County borders Conejos County to the west, Alamosa County to the northwest, Huerfano County to the northeast, Las Animas County...

Custer County covers nearly 739 square miles in south central Colorado, spanning the Wet Mountain Valley between the Sangre de Cristo Mountains in the west and the Wet Mountains in the east. It is bordered by Fremont County to the north, Pueblo County to the east, Huerfano County to the south, and...

Dolores County is a sparsely populated county in southwestern Colorado, named for the river that flows from the San Juan Mountains on its eastern flank. It covers 1,068 square miles and is bordered to the north by San Miguel County , to the east by San Juan County , to the southeast by La Plata...

Eagle County, formed in 1883, covers 1,692 square miles of mountainous terrain in northwest Colorado. It is named for the Eagle River , which begins in the mountains in the county’s southeast corner, flows westward alongside Interstate 70 , and meets the Colorado River near the small community of...

Elbert County, named for former Colorado territorial governor Samuel H. Elbert , covers 1,851 square miles on the Great Plains southeast of Denver . It is bordered to the north by Arapahoe County , to the east and south by Lincoln County , to the south by El Paso County , and to the west by Douglas...

Named for former president James Garfield, Garfield County is a mountainous county in western Colorado. Covering 2,956 square miles, it is bordered to the north by Rio Blanco County , to the east by Routt and Eagle Counties, to the south by Pitkin and Mesa Counties, and to the west by the state of...

Established in 1874, Grand County lies in the north central Rocky Mountains some sixty-seven miles west of Denver . It is named for the Grand River, an early name for the Colorado River . Encompassing 1,868 square miles, Grand County is bordered to the north by Jackson County , to the northeast by...

Established in 1874, Hinsdale County is a mountainous, sparsely populated county of 1,123 square miles in southwest Colorado. The county was named for George A. Hinsdale , a prominent politician and newspaperman in nineteenth-century Colorado. The county currently has a population of 786. Lake City...

Jackson County, named after former US President Andrew Jackson, covers 1,621 square miles in northern Colorado. It encompasses North Park , a large intermountain basin that holds the headwaters of the North Platte River . The North Platte flows north out of Jackson County into Wyoming. The county’s...

Kiowa County, named for the Kiowa people who once lived in the area, covers 1,786 square miles of the Great Plains in eastern Colorado. The county is bordered by Cheyenne County to the north, the state of Kansas to the east, Prowers and Bent Counties to the south, and Crowley and Lincoln Counties...

La Plata County covers 1,700 square miles in southwest Colorado. It is named for the La Plata River and La Plata Mountains, both of which are named for the Spanish word for “silver.” La Plata County is bordered to the north by San Juan County , to the east by Hinsdale and Archuleta counties, to the...

Located in north central Colorado, Larimer County encompasses more than 2,600 square miles of plains , foothills, and high mountains in the northern Front Range . The county shares its northern border with Wyoming and borders Weld County to the east, Jackson and Grand Counties to the west, and...

Lincoln County, named after President Abraham Lincoln, covers 2,586 square miles of Colorado’s Great Plains southeast of Denver. It is bordered to the north by Washington County , to the east by Kit Carson and Cheyenne Counties, to the southeast by Kiowa County , to the south by Crowley County ,...

Mesa County is situated on 3,341 square miles of the eastern Colorado Plateau in western Colorado. The county is named for the wide, flat-topped mountains within its borders. The Spanish called such mountains mesas —meaning “tables.” The county’s largest mesa, Grand Mesa , rises more than 11,000...

Moffat County, named for Denver mining and railroad mogul David Moffat , covers 4,751 square miles of Colorado’s northwest corner. It sits on the northern edge of the Colorado Plateau and is bordered by the state of Wyoming to the north, Routt County to the east, Rio Blanco County to the south, and...

Montrose County covers 2,243 square miles in western Colorado. Named for its seat, Montrose , the county is bordered to the north by Mesa and Delta Counties, to the east by Gunnison County , to the south by Ouray and San Miguel Counties, and to the west by the state of Utah. The county...

Otero County is located in southeastern Colorado and covers 1,270 square miles of rolling plains and the fertile Arkansas River valley. It is bordered by Pueblo County to the west, Crowley and Kiowa Counties to the north, Bent County to the east, and Las Animas County to the south and southwest...

Park County covers 2,211 square miles of the Rocky Mountains in central Colorado. Park County’s elevation rages from 7,000 to 14,000 feet. The county’s namesake and dominant geographic feature is South Park, a large, high-altitude basin containing the headwaters of the South Platte River . Park...

Pitkin County, named after former Colorado governor Frederick Pitkin , is located in west-central Colorado, spanning 973 square miles of mountains and the Roaring Fork River valley. It is bordered by Garfield and Eagle Counties to the north, Lake and Chaffee Counties to the east, Gunnison County to...

Pueblo County covers 2,398 square miles in southeast Colorado, from the southern Front Range and Wet Mountains in the west to the Arkansas River valley and Great Plains in the east. It is bordered by El Paso County to the north, Crowley and Otero Counties to the east, Las Animas and Huerfano...

Rio Grande County is located in the western San Luis Valley in south-central Colorado. It covers 912 square miles and ranges in elevation from 7,000 feet on the valley floor to over 13,000 feet atop several mountain peaks. Del Norte is the county seat, and Monte Vista , operating as a Home-Rule...

Known as the northern gateway to the San Luis Valley , Saguache County covers 3,168 miles between the Sangre de Cristo and San Juan Mountain ranges in southern Colorado. The word Saguache , pronounced “Sa-watch,” is derived from the Ute language and means “blue-green Earth”—a reference to the...

San Miguel County covers 1,289 square miles in southwest Colorado. Named for the river that flows northwest across its eastern flank, the county is bordered to the north by Montrose County , to the east by Ouray County , to the southeast by San Juan County , to the south by Dolores County , and to...

Summit County is a mountainous county in central Colorado, approximately sixty-five miles west of Denver . Originally one of the largest of Colorado’s first seventeen counties, Summit County’s current border connects a ring of peaks around an area of 619 square miles. It is bordered to the north by...

Washington County, named for the first US president, is a county of 2,524 square miles on Colorado’s eastern Great Plains . It is bordered to the north by Logan County , to the east by Yuma County , to the south by Kit Carson and Lincoln Counties, and to the west by Arapahoe , Adams , and Morgan...