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Population per Square Mile in Colorado, by County

Population per Square Mile for every county in Colorado, ranked. The highest is Denver County at 4,696.4 and the lowest is Mineral County at 0.8.

Colorado: 56.6 · United States: n/a · median county in Colorado: 10.6

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#County Population per Square Mile
1Denver County4,696.4
2Broomfield County2,314.3
3Arapahoe County827.0
4Jefferson County758.0
5Adams County454.4
6Boulder County452.9
7Douglas County448.5
8El Paso County349.4
9Larimer County141.5
10Weld County87.9
11Pueblo County71.0
12Summit County51.0
13Mesa County47.6
14Teller County44.6
15Gilpin County39.3
16La Plata County33.3
17Eagle County32.7
18Fremont County32.4
19Delta County27.7
20Clear Creek County23.4
21Morgan County23.1
22Alamosa County22.9
23Garfield County21.2
24Chaffee County19.9
25Lake County19.6
26Montrose County19.5
27Pitkin County17.5
28Elbert County15.1
29Otero County14.5
30Montezuma County13.0
31Rio Grande County12.4
32Logan County11.4
33Routt County10.6
34Archuleta County10.3
35Ouray County9.4
36Grand County8.6
37Park County8.2
38Prowers County7.3
39Crowley County7.2
40Custer County7.1
41Phillips County6.5
42San Miguel County6.2
43Conejos County5.8
44Gunnison County5.3
45Huerfano County4.4
46Sedgwick County4.2
47Yuma County4.2
48Bent County3.7
49Kit Carson County3.3
50Las Animas County3.0
51Costilla County2.9
52Moffat County2.8
53Dolores County2.3
54Lincoln County2.2
55Saguache County2.1
56Rio Blanco County2.0
57San Juan County1.9
58Washington County1.9
59Baca County1.3
60Cheyenne County1.0
61Hinsdale County0.9
62Jackson County0.9
63Kiowa County0.8
64Mineral County0.8

People divided by land area. Water is excluded, so lake and coastal counties are not unfairly diluted.

Source: ACS 2020-2024 5-Year Estimates, 2024.

Colorado ranks 39th of 52 states for population per square mile.

Population per Square Mile in other states

Other statistics for Colorado by county