Population
|
County
|
622,263
|
El Paso
|
600,158
|
Denver
|
572,003
|
Arapahoe
|
534,543
|
Jefferson
|
441,603
|
Adams
|
299,630
|
Larimer
|
294,567
|
Boulder
|
285,465
|
Douglas
|
252,825
|
Weld
|
159,063
|
Pueblo
|
146,723
|
Mesa
|
56,389
|
Garfield
|
55,889
|
Broomfield
|
52,197
|
Eagle
|
51,334
|
La Plata
|
46,824
|
Fremont
|
|
Population
|
County
|
41,276
|
Montrose
|
30,952
|
Delta
|
28,159
|
Morgan
|
27,994
|
Summit
|
25,535
|
Montezuma
|
23,509
|
Routt
|
23,350
|
Teller
|
23,086
|
Elbert
|
22,709
|
Logan
|
18,831
|
Otero
|
17,809
|
Chaffee
|
17,148
|
Pitkin
|
16,206
|
Park
|
15,507
|
Las Animas
|
15,445
|
Alamosa
|
15,324
|
Gunnison
|
|
Population
|
County
|
14,843
|
Grand
|
13,795
|
Moffat
|
12,551
|
Prowers
|
12,084
|
Archuleta
|
11,982
|
Rio Grande
|
10,043
|
Yuma
|
9,088
|
Clear Creek
|
8,270
|
Kit Carson
|
8,256
|
Conejos
|
7,359
|
San Miguel
|
7,310
|
Lake
|
6,711
|
Huerfano
|
6,666
|
Rio Blanco
|
6,499
|
Bent
|
6,108
|
Saguache
|
5,823
|
Crowley
|
|
Population
|
County
|
5,467
|
Lincoln
|
5,441
|
Gilpin
|
4,814
|
Washington
|
4,442
|
Phillips
|
4,436
|
Ouray
|
4,255
|
Custer
|
3,788
|
Baca
|
3,524
|
Costilla
|
2,379
|
Sedgwick
|
2,064
|
Dolores
|
1,836
|
Cheyenne
|
1,398
|
Kiowa
|
1,394
|
Jackson
|
843
|
Hinsdale
|
712
|
Mineral
|
699
|
San Juan
|
|