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Colorado County Map

Labeled county boundary map and complete directory of all 64 counties in Colorado (CO, State FIPS 08). View 5-digit FIPS codes, county seats, land area in square miles, and official county government websites below.

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County boundary map of Colorado (CO) showing all 64 counties

Showing all 64 counties in Colorado. Use the search box below to filter by county name, 5-digit FIPS code, or county seat.

Colorado County Statistics & Summary

Total Counties

64

State FIPS 08 · Capital: Denver

Largest by Land Area

Las Animas County

4,772.9 sq mi · FIPS 08071

Smallest by Land Area

Broomfield County

33 sq mi · FIPS 08014

All 64 Counties in Colorado (FIPS, County Seat & Official Website)

County Name 5-Digit FIPS Seat / Administrative Center Land Area (sq mi) Coordinates Official Website
Adams County 08001 Brighton 1,166.8 39.874°, -104.332° Official Site
Alamosa County 08003 Alamosa 722.6 37.568°, -105.788° Official Site
Arapahoe County 08005 Littleton 797.9 39.645°, -104.332° Official Site
Archuleta County 08007 Pagosa Springs 1,350.1 37.202°, -107.051° Official Site
Baca County 08009 Springfield 2,555 37.310°, -102.544° Official Site
Bent County 08011 Las Animas 1,512.8 37.932°, -103.078° Official Site
Boulder County 08013 Boulder 726.4 40.095°, -105.398° Official Site
Broomfield County 08014 — 33 39.954°, -105.051° Official Site
Chaffee County 08015 Salida 1,013.4 38.735°, -106.300° Official Site
Cheyenne County 08017 Cheyenne Wells 1,778.3 38.836°, -102.602° Official Site
Clear Creek County 08019 Georgetown 395.1 39.689°, -105.671° Official Site
Conejos County 08021 Conejos 1,287.4 37.213°, -106.176° Official Site
Costilla County 08023 San Luis 1,227.6 37.278°, -105.429° Official Site
Crowley County 08025 Ordway 787.4 38.306°, -103.773° Official Site
Custer County 08027 Westcliffe 738.6 38.102°, -105.374° Official Site
Delta County 08029 Delta 1,142.1 38.861°, -107.865° Official Site
Denver County 08031 Denver 153.1 39.762°, -104.881° Official Site
Dolores County 08033 Dove Creek 1,067.2 37.734°, -108.506° Official Site
Douglas County 08035 Castle Rock 840.1 39.326°, -104.926° Official Site
Eagle County 08037 Eagle 1,684.5 39.627°, -106.695° Official Site
El Paso County 08041 Colorado Springs 2,126.4 38.830°, -104.523° Official Site
Elbert County 08039 Kiowa 1,850.8 39.315°, -104.114° Official Site
Fremont County 08043 Cañon City 1,533.8 38.455°, -105.425° Official Site
Garfield County 08045 Glenwood Springs 2,947.4 39.599°, -107.910° Official Site
Gilpin County 08047 Central City 150 39.861°, -105.529° Official Site
Grand County 08049 Hot Sulphur Springs 1,846.6 40.113°, -106.111° Official Site
Gunnison County 08051 Gunnison 3,239.1 38.670°, -107.057° Official Site
Hinsdale County 08053 Lake City 1,117.2 37.868°, -107.361° Official Site
Huerfano County 08055 Walsenburg 1,591 37.688°, -104.960° Official Site
Jackson County 08057 Walden 1,613.7 40.663°, -106.329° Official Site
Jefferson County 08059 Golden 764.4 39.580°, -105.246° Official Site
Kiowa County 08061 Eads 1,767.8 38.388°, -102.757° Official Site
Kit Carson County 08063 Burlington 2,160.8 39.305°, -102.603° Official Site
La Plata County 08067 Durango 1,689.7 37.280°, -107.850° Official Site
Lake County 08065 Leadville 376.9 39.205°, -106.350° Official Site
Larimer County 08069 Fort Collins 2,595.7 40.658°, -105.487° Official Site
Las Animas County 08071 Trinidad 4,772.9 37.319°, -104.044° Official Site
Lincoln County 08073 Hugo 2,577.7 38.994°, -103.508° Official Site
Logan County 08075 Sterling 1,838.6 40.728°, -103.091° Official Site
Mesa County 08077 Grand Junction 3,328.7 39.022°, -108.438° Official Site
Mineral County 08079 Creede 875.8 37.584°, -106.958° Official Site
Moffat County 08081 Craig 4,743.3 40.611°, -108.217° Official Site
Montezuma County 08083 Cortez 2,029.3 37.338°, -108.596° Official Site
Montrose County 08085 Montrose 2,240.9 38.407°, -108.266° Official Site
Morgan County 08087 Fort Morgan 1,280.5 40.262°, -103.807° Official Site
Otero County 08089 La Junta 1,261.9 37.884°, -103.721° Official Site
Ouray County 08091 Ouray 540.7 38.155°, -107.788° Official Site
Park County 08093 Fairplay 2,193.5 39.119°, -105.718° Official Site
Phillips County 08095 Holyoke 687.9 40.595°, -102.345° Official Site
Pitkin County 08097 Aspen 970.7 39.218°, -106.916° Official Site
Prowers County 08099 Lamar 1,638.4 37.959°, -102.392° Official Site
Pueblo County 08101 Pueblo 2,386.6 38.163°, -104.485° Official Site
Rio Blanco County 08103 Meeker 3,221 39.973°, -108.201° Official Site
Rio Grande County 08105 Del Norte 912 37.486°, -106.453° Official Site
Routt County 08107 Steamboat Springs 2,362 40.484°, -106.988° Official Site
Saguache County 08109 Saguache 3,168.6 38.032°, -106.235° Official Site
San Juan County 08111 Silverton 387.5 37.781°, -107.670° Official Site
San Miguel County 08113 Telluride 1,286.7 38.009°, -108.427° Official Site
Sedgwick County 08115 Julesburg 548 40.872°, -102.355° Official Site
Summit County 08117 Breckenridge 608.3 39.620°, -106.134° Official Site
Teller County 08119 Cripple Creek 557.1 38.891°, -105.183° Official Site
Washington County 08121 Akron 2,518.1 39.966°, -103.210° Official Site
Weld County 08123 Greeley 3,985 40.556°, -104.384° Official Site
Yuma County 08125 Wray 2,364.4 40.001°, -102.422° Official Site

How Colorado Counties and 5-Digit FIPS Codes Work

In U.S. Census Bureau TIGER/Line geography, Colorado (CO) is assigned the 2-digit state Federal Information Processing Series (FIPS) code 08 and covers 103,637 square miles of land area across 64 counties in the Mountain Time (MT) zone (with Denver as the state capital). Every county in the directory above carries a unique 5-digit GEOID formed by combining state prefix 08 with a 3-digit county code (ranging alphabetically from Adams County at 08001 to Yuma County at 08125).

Because U.S. Postal Service 5-digit ZIP Codes follow mail carrier delivery routes rather than local government borders, many postal addresses in Colorado carry a neighboring city’s mailing name or sit inside a multi-county ZIP Code Tabulation Area (ZCTA). Property tax assessments, deed recording, circuit and county court venue, voter registration precincts, sheriff jurisdiction, and county sales tax rates in Colorado are determined by the legal county boundary shown on the map above rather than the postal city name on an envelope.

Land area figures in square miles and internal centroid coordinates (INTPTLAT, INTPTLON) come directly from the U.S. Census Bureau’s current TIGERweb State_County benchmark, while 63 administrative seats and 64 verified official government websites are cross-referenced from Wikidata (CC0). Need a clean outline worksheet without county labels, or want to verify which Colorado county a specific home or business address sits in? Open the Blank Map of Colorado, run a street-segment check on Address to County Lookup, check multi-county postal overlap on ZIP Code to County Lookup, or browse all 50 states on the National U.S. County Map.

Adjacent State County Maps

Explore county maps and FIPS directories for states bordering Colorado: