US Census Data

Most densely populated in Colorado

Colorado counties and cities ranked by population density.

This page ranks the counties and cities of Colorado by population density — which have the most people per square mile, according to the US Census Bureau's American Community Survey 5-year estimates.

Among counties, Denver County leads at 4,663/sq mi.

Among cities & places, Aetna Estates leads at 9,002/sq mi.

Counties

#NamePeople / sq mi
1Denver County4,663/sq mi
2Broomfield County2,278/sq mi
3Arapahoe County822/sq mi
4Jefferson County758/sq mi
5Boulder County452/sq mi
6Adams County449/sq mi
7Douglas County438/sq mi
8El Paso County346/sq mi
9Larimer County140/sq mi
10Weld County85/sq mi
11Pueblo County71/sq mi
12Summit County51/sq mi
13Mesa County47/sq mi
14Teller County44/sq mi
15Gilpin County39/sq mi
16La Plata County33/sq mi
17Eagle County33/sq mi
18Fremont County32/sq mi
19Delta County27/sq mi
20Clear Creek County24/sq mi
21Alamosa County23/sq mi
22Morgan County23/sq mi
23Garfield County21/sq mi
24Lake County20/sq mi
25Chaffee County20/sq mi
26Montrose County19/sq mi
27Pitkin County18/sq mi
28Elbert County15/sq mi
29Otero County15/sq mi
30Montezuma County13/sq mi
31Rio Grande County12/sq mi
32Logan County11/sq mi
33Routt County11/sq mi
34Archuleta County10/sq mi
35Ouray County9/sq mi
36Grand County9/sq mi
37Park County8/sq mi
38Prowers County7/sq mi
39Crowley County7/sq mi
40Custer County7/sq mi
41Phillips County7/sq mi
42San Miguel County6/sq mi
43Conejos County6/sq mi
44Gunnison County5/sq mi
45Huerfano County4/sq mi
46Sedgwick County4/sq mi
47Yuma County4/sq mi
48Bent County4/sq mi
49Kit Carson County3/sq mi
50Las Animas County3/sq mi
51Costilla County3/sq mi
52Moffat County3/sq mi
53Dolores County2/sq mi
54Lincoln County2/sq mi
55Saguache County2/sq mi
56Rio Blanco County2/sq mi
57Washington County2/sq mi
58San Juan County2/sq mi
59Baca County1/sq mi
60Cheyenne County1/sq mi
61Mineral County1/sq mi
62Jackson County1/sq mi
63Hinsdale County1/sq mi
64Kiowa County1/sq mi

Cities & places

Top 100.
#NamePeople / sq mi
1Aetna Estates9,002/sq mi
2Four Square Mile8,065/sq mi
3Glendale8,003/sq mi
4Federal Heights7,979/sq mi
5Sherrelwood7,896/sq mi
6Shaw Heights7,848/sq mi
7Edgewater7,133/sq mi
8East Pleasant View6,977/sq mi
9Cherry Creek6,593/sq mi
10Sierra Ridge6,443/sq mi
11Meridian Village5,426/sq mi
12Mountain View5,378/sq mi
13Northglenn5,156/sq mi
14Englewood5,148/sq mi
15Twin Lakes5,042/sq mi
16Stonegate5,010/sq mi
17Derby4,967/sq mi
18Log Lane Village4,837/sq mi
19Denver4,663/sq mi
20Holly Hills4,569/sq mi
21Acres Green4,505/sq mi
22Welby4,393/sq mi
23Stepping Stone4,190/sq mi
24Highlands Ranch4,180/sq mi
25Blue Sky3,967/sq mi
26Boulder3,954/sq mi
27Thornton3,912/sq mi
28Columbine3,871/sq mi
29Westminster3,654/sq mi
30Dakota Ridge3,637/sq mi
31Lakewood3,595/sq mi
32Littleton3,573/sq mi
33Centennial3,561/sq mi
34Wheat Ridge3,441/sq mi
35West Pleasant View3,401/sq mi
36Ken Caryl3,398/sq mi
37Longmont3,382/sq mi
38Superior3,340/sq mi
39Clifton3,302/sq mi
40Lafayette3,292/sq mi
41Cimarron Hills3,192/sq mi
42La Salle3,169/sq mi
43Carbondale3,156/sq mi
44Arvada3,150/sq mi
45Berkley3,013/sq mi
46Security-Widefield3,008/sq mi
47Wellington3,006/sq mi
48Fort Collins2,965/sq mi
49Fruitvale2,825/sq mi
50Inverness2,734/sq mi
51Sheridan2,710/sq mi
52Parker2,678/sq mi
53Center2,676/sq mi
54Gleneagle2,665/sq mi
55Louisville2,608/sq mi
56Garden City2,595/sq mi
57Ignacio2,452/sq mi
58Ovid2,427/sq mi
59Stratmoor2,418/sq mi
60Colorado Springs2,391/sq mi
61Aurora2,378/sq mi
62Rocky Ford2,289/sq mi
63Olney Springs2,286/sq mi
64Broomfield2,278/sq mi
65La Junta2,256/sq mi
66Leadville2,245/sq mi
67Ordway2,227/sq mi
68Lochbuie2,210/sq mi
69Castle Rock2,205/sq mi
70Greeley2,182/sq mi
71Palisade2,171/sq mi
72Loveland2,158/sq mi
73Fort Morgan2,154/sq mi
74Silt2,125/sq mi
75Golden2,123/sq mi
76Columbine Valley2,116/sq mi
77Evans2,091/sq mi
78Salida2,056/sq mi
79Applewood1,997/sq mi
80Basalt1,975/sq mi
81Meridian1,974/sq mi
82Salt Creek1,970/sq mi
83Pueblo1,970/sq mi
84Fowler1,969/sq mi
85Walden1,963/sq mi
86New Castle1,954/sq mi
87Brighton1,896/sq mi
88Merino1,886/sq mi
89Aristocrat Ranchettes1,885/sq mi
90Empire1,881/sq mi
91Greenwood Village1,874/sq mi
92Brush1,872/sq mi
93Eaton1,845/sq mi
94Orchard Mesa1,814/sq mi
95Swink1,793/sq mi
96Craig1,779/sq mi
97Aspen1,776/sq mi
98Oak Creek1,769/sq mi
99Commerce City1,768/sq mi
100Paonia1,754/sq mi

Nationwide

1

Other rankings in Colorado

20

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