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 704,621
2 El Paso County 699,232
3 Arapahoe County 643,052
4 Jefferson County 574,613
5 Adams County 503,167
6 Larimer County 343,976
7 Douglas County 335,299
8 Boulder County 322,514
9 Weld County 304,633
10 Pueblo County 166,475
11 Mesa County 151,616
12 Broomfield County 68,341
13 Garfield County 59,118
14 La Plata County 55,589
15 Eagle County 54,772
16 Fremont County 47,559
17 Montrose County 41,784
18 Summit County 30,585
19 Delta County 30,568
20 Morgan County 28,192
21 Montezuma County 26,140
22 Elbert County 25,642
23 Routt County 25,220
24 Teller County 24,646
25 Logan County 21,896
26 Chaffee County 19,638
27 Otero County 18,326
28 Park County 17,905
29 Pitkin County 17,890
30 Gunnison County 16,939
31 Alamosa County 16,551
32 Grand County 15,321
33 Las Animas County 14,238
34 Archuleta County 13,315
35 Moffat County 13,131
36 Prowers County 12,070
37 Rio Grande County 11,301
38 Yuma County 10,075
39 Clear Creek County 9,574
40 Conejos County 8,184
41 San Miguel County 7,967
42 Lake County 7,778
43 Kit Carson County 7,158
44 Huerfano County 6,662
45 Saguache County 6,626
46 Rio Blanco County 6,420
47 Gilpin County 6,013
48 Bent County 5,938
49 Crowley County 5,810
50 Lincoln County 5,546
51 Washington County 4,938
52 Custer County 4,874
53 Ouray County 4,794
54 Phillips County 4,292
55 Costilla County 3,776
56 Baca County 3,562
57 Sedgwick County 2,344
58 Dolores County 2,067
59 Cheyenne County 1,845
60 Jackson County 1,385
61 Kiowa County 1,376
62 Hinsdale County 794
63 Mineral County 766
64 San Juan County 715

United States Census Bureau / American FactFinder. "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2017". 2017 Population Estimates Program. Web. March 2018. http://factfinder2.census.gov.

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