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 705,576
2 El Paso County 698,974
3 Arapahoe County 644,560
4 Jefferson County 574,798
5 Adams County 504,108
6 Larimer County 344,786
7 Douglas County 336,041
8 Boulder County 322,510
9 Weld County 305,345
10 Pueblo County 165,982
11 Mesa County 151,218
12 Broomfield County 67,886
13 Garfield County 59,055
14 La Plata County 55,617
15 Eagle County 54,681
16 Fremont County 47,321
17 Montrose County 41,686
18 Summit County 30,649
19 Delta County 30,565
20 Morgan County 28,517
21 Montezuma County 26,031
22 Elbert County 25,717
23 Routt County 25,072
24 Teller County 24,524
25 Logan County 22,380
26 Chaffee County 19,557
27 Otero County 18,282
28 Pitkin County 17,926
29 Park County 17,867
30 Gunnison County 16,802
31 Alamosa County 16,107
32 Grand County 15,303
33 Las Animas County 14,266
34 Archuleta County 13,253
35 Moffat County 13,127
36 Prowers County 12,022
37 Rio Grande County 11,305
38 Yuma County 10,003
39 Clear Creek County 9,495
40 Conejos County 8,128
41 San Miguel County 8,049
42 Lake County 7,751
43 Kit Carson County 7,447
44 Huerfano County 6,679
45 Saguache County 6,592
46 Rio Blanco County 6,384
47 Gilpin County 6,018
48 Bent County 5,787
49 Crowley County 5,754
50 Lincoln County 5,585
51 Washington County 4,868
52 Ouray County 4,796
53 Custer County 4,776
54 Phillips County 4,290
55 Costilla County 3,745
56 Baca County 3,561
57 Sedgwick County 2,322
58 Cheyenne County 2,026
59 Dolores County 1,857
60 Kiowa County 1,489
61 Jackson County 1,261
62 Hinsdale County 857
63 Mineral County 824
64 San Juan County 589

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2019. U.S. Census Bureau, Population Division. Web. May 2020. http://www.census.gov/.

United States Census Bureau. B01001 SEX BY AGE, 2019 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 10 December 2020. http://www.census.gov/.

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