Colorado / Counties by Population

Colorado Counties by Population

The data is from the US Census. Below are 64 Colorado counties ranked 1 through 64 . You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

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Rank County Population
1 Denver County 693,417
2 El Paso County 688,153
3 Arapahoe County 636,671
4 Jefferson County 570,427
5 Adams County 497,115
6 Larimer County 338,161
7 Douglas County 328,614
8 Boulder County 321,030
9 Weld County 295,123
10 Pueblo County 164,685
11 Mesa County 149,998
12 Broomfield County 66,120
13 Garfield County 58,538
14 La Plata County 55,101
15 Eagle County 54,357
16 Fremont County 47,002
17 Montrose County 41,268
18 Summit County 30,429
19 Delta County 30,346
20 Morgan County 28,257
21 Montezuma County 25,909
22 Elbert County 25,162
23 Routt County 24,874
24 Teller County 24,113
25 Logan County 21,689
26 Chaffee County 19,164
27 Otero County 18,325
28 Pitkin County 17,909
29 Park County 17,392
30 Gunnison County 16,537
31 Alamosa County 16,444
32 Grand County 15,066
33 Las Animas County 14,179
34 Moffat County 13,060
35 Archuleta County 12,908
36 Prowers County 12,052
37 Rio Grande County 11,351
38 Yuma County 10,069
39 Clear Creek County 9,379
40 Conejos County 8,142
41 San Miguel County 7,968
42 Kit Carson County 7,635
43 Lake County 7,585
44 Huerfano County 6,583
45 Saguache County 6,468
46 Rio Blanco County 6,465
47 Gilpin County 5,924
48 Bent County 5,809
49 Crowley County 5,630
50 Lincoln County 5,548
51 Washington County 4,840
52 Ouray County 4,722
53 Custer County 4,640
54 Phillips County 4,318
55 Costilla County 3,687
56 Baca County 3,563
57 Sedgwick County 2,350
58 Cheyenne County 2,039
59 Dolores County 1,841
60 Kiowa County 1,449
61 Jackson County 1,296
62 Hinsdale County 878
63 Mineral County 823
64 San Juan County 544

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2018. U.S. Census Bureau, Population Division. Web. May 2019. http://www.census.gov/.

United States Census Bureau. B01001 SEX BY AGE, 2018 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 19 December 2019. http://www.census.gov/.

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