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Colorado
There are 64 Counties in Colorado
Click the state map for a larger view or select a county from the list below to view a listing of the county officials and other information pertaining to that county.
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| County |
NACo
Member |
2000
Population |
Square
Miles |
County Seat |
Founded |
|
Adams
|
|
363,857
|
1,192
|
Brighton
|
1901
|
|
Alamosa
|
|
14,966
|
723
|
Alamosa
|
1913
|
|
Arapahoe
|
|
487,967
|
803
|
Littleton
|
1861
|
|
Archuleta
|
|
9,898
|
1,349
|
Pagosa Springs
|
1885
|
|
Baca
|
|
4,517
|
2,556
|
Springfield
|
1889
|
|
Bent
|
|
5,998
|
1,514
|
Las Animas
|
1870
|
|
Boulder
|
|
291,288
|
742
|
Boulder
|
1861
|
|
Broomfield
|
|
38,272
|
34
|
Broomfield
|
2001
|
|
Chaffee
|
|
16,242
|
1,014
|
Salida
|
1861
|
|
Cheyenne
|
|
2,231
|
1,782
|
Cheyenne Wells
|
1889
|
|
Clear Creek
|
|
9,322
|
396
|
Georgetown
|
1861
|
|
Conejos
|
|
8,400
|
1,287
|
Conejos
|
1861
|
|
Costilla
|
|
3,663
|
1,227
|
San Luis
|
1861
|
|
Crowley
|
|
5,518
|
789
|
Ordway
|
1911
|
|
Custer
|
|
3,503
|
739
|
Westcliffe
|
1877
|
|
Delta
|
|
27,834
|
1,142
|
Delta
|
1883
|
|
Denver
*
|
|
554,636
|
153
|
Denver
|
1901
|
|
Dolores
|
|
1,844
|
1,067
|
Dove Creek
|
1881
|
|
Douglas
|
|
175,766
|
840
|
Castle Rock
|
1861
|
|
Eagle
|
|
41,659
|
1,688
|
Eagle
|
1883
|
|
El Paso
|
|
516,929
|
2,127
|
Colorado Springs
|
1861
|
|
Elbert
|
|
19,872
|
1,851
|
Kiowa
|
1874
|
|
Fremont
|
|
46,145
|
1,533
|
Canon City
|
1861
|
|
Garfield
|
|
43,791
|
2,948
|
Glenwood Springs
|
1883
|
|
Gilpin
|
|
4,757
|
150
|
Central City
|
1861
|
|
Grand
|
|
12,442
|
1,850
|
Hot Sulphur Springs
|
1874
|
|
Gunnison
|
|
13,956
|
3,239
|
Gunnison
|
1877
|
|
Hinsdale
|
|
790
|
1,118
|
Lake City
|
1874
|
|
Huerfano
|
|
7,862
|
1,591
|
Walsenburg
|
1861
|
|
Jackson
|
|
1,577
|
1,613
|
Walden
|
1909
|
|
Jefferson
|
|
527,056
|
772
|
Golden
|
1861
|
|
Kiowa
|
|
1,622
|
1,771
|
Eads
|
1889
|
|
Kit Carson
|
|
8,011
|
2,161
|
Burlington
|
1889
|
|
La Plata
|
|
43,941
|
1,692
|
Durango
|
1874
|
|
Lake
|
|
7,812
|
377
|
Leadville
|
1861
|
|
Larimer
|
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251,494
|
2,601
|
Fort Collins
|
1861
|
|
Las Animas
|
|
15,207
|
4,773
|
Trinidad
|
1866
|
|
Lincoln
|
|
6,087
|
2,586
|
Hugo
|
1889
|
|
Logan
|
|
20,504
|
1,839
|
Sterling
|
1887
|
|
Mesa
|
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116,255
|
3,328
|
Grand Junction
|
1883
|
|
Mineral
|
|
831
|
876
|
Creede
|
1893
|
|
Moffat
|
|
13,184
|
4,742
|
Craig
|
1911
|
|
Montezuma
|
|
23,830
|
2,037
|
Cortez
|
1889
|
|
Montrose
|
|
33,432
|
2,241
|
Montrose
|
1883
|
|
Morgan
|
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27,171
|
1,286
|
Fort Morgan
|
1889
|
|
Otero
|
|
20,311
|
1,263
|
La Junta
|
1889
|
|
Ouray
|
|
3,742
|
542
|
Ouray
|
1877
|
|
Park
|
|
14,523
|
2,201
|
Fairplay
|
1861
|
|
Phillips
|
|
4,480
|
688
|
Holyoke
|
1889
|
|
Pitkin
|
|
14,872
|
970
|
Aspen
|
1881
|
|
Prowers
|
|
14,483
|
1,640
|
Lamar
|
1889
|
|
Pueblo
|
|
141,472
|
2,389
|
Pueblo
|
1866
|
|
Rio Blanco
|
|
5,986
|
3,221
|
Meeker
|
1889
|
|
Rio Grande
|
|
12,413
|
913
|
Del Norte
|
1874
|
|
Routt
|
|
19,690
|
2,362
|
Steamboat Springs
|
1877
|
|
Saguache
|
|
5,917
|
3,169
|
Saguache
|
1866
|
|
San Juan
|
|
558
|
388
|
Silverton
|
1876
|
|
San Miguel
|
|
6,594
|
1,286
|
Telluride
|
1861
|
|
Sedgwick
|
|
2,747
|
548
|
Julesburg
|
1889
|
|
Summit
|
|
23,548
|
608
|
Breckenridge
|
1861
|
|
Teller
|
|
20,555
|
557
|
Cripple Creek
|
1899
|
|
Washington
|
|
4,926
|
2,521
|
Akron
|
1887
|
|
Weld
|
|
180,936
|
3,993
|
Greeley
|
1861
|
|
Yuma
|
|
9,841
|
2,366
|
Wray
|
1889
|
* Consolidated City-County Government
To report any updates, deletions or additions, contact Database Updates
or send a fax to NACo, Attn: Database Updates (202)393-2630.
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