List of Counties in Colorado
Counties followed by an asterisk (*) denote they no longer exist.
Adams
Alamosa
Arapahoe
Archuleta
Baca
Bent
Boulder
Chaffee
Cheyenne
Clear_Creek
Conejos
Costilla
Crowley
Custer
Delta
Denver
Dolores
Douglas
Eagle
El_Paso
Elbert
Fremont
Garfield
Gilpin
Greenwood*
Grand
Gunnison
Hinsdale
Huerfano
Jackson
Jefferson
Kiowa
Kit_Carson
La_Plata
Lake
Larimer
Las_Animas
Lincoln
Logan
Mesa
Mineral
Moffat
Montezuma
Montrose
Morgan
Otero
Ouray
Park
Phillips
Pitkin
Prowers
Pueblo
Rio_Blanco
Rio_Grande
Routt
Saguache
San_Juan
San_Miguel
Sedgwick
Summit
Teller
Washington
Weld
Yuma
Colorado: Territory 1861, State 1876