Counties in Colorado by population density

Denver County had the highest population density of 64 counties in 2022, at 1,808 inhabitants per km². Hinsdale County had the lowest, at 0.3 inhabitants per km². The median was 4.2 inhabitants per km² and the figure for Colorado was 21.8 inhabitants per km². Source: the U.S. Census Bureau.

Highest1,808Denver County
Median4.264 counties
Colorado21.8History

Top 40 counties, 2022

CSVChart (SVG)

Denver CountyDenver County: 1,808 inhabitants per km²1,808Broomfield CountyBroomfield County: 891.6 inhabitants per km²891.6Arapahoe CountyArapahoe County: 319.1 inhabitants per km²319.1Jefferson CountyJefferson County: 291.3 inhabitants per km²291.3Adams CountyAdams County: 174.7 inhabitants per km²174.7Boulder CountyBoulder County: 174.3 inhabitants per km²174.3Douglas CountyDouglas County: 172.9 inhabitants per km²172.9El Paso CountyEl Paso County: 134.7 inhabitants per km²134.7Larimer CountyLarimer County: 54.7 inhabitants per km²54.7Weld CountyWeld County: 34 inhabitants per km²34Pueblo CountyPueblo County: 27.4 inhabitants per km²27.4Summit CountySummit County: 19.9 inhabitants per km²19.9Mesa CountyMesa County: 18.4 inhabitants per km²18.4Teller CountyTeller County: 17.2 inhabitants per km²17.2Gilpin CountyGilpin County: 15.2 inhabitants per km²15.2La Plata CountyLa Plata County: 12.9 inhabitants per km²12.9Eagle CountyEagle County: 12.7 inhabitants per km²12.7Fremont CountyFremont County: 12.5 inhabitants per km²12.5Delta CountyDelta County: 10.7 inhabitants per km²10.7Clear Creek CountyClear Creek County: 9.1 inhabitants per km²9.1Morgan CountyMorgan County: 8.9 inhabitants per km²8.9Alamosa CountyAlamosa County: 8.9 inhabitants per km²8.9Garfield CountyGarfield County: 8.2 inhabitants per km²8.2Chaffee CountyChaffee County: 7.7 inhabitants per km²7.7Lake CountyLake County: 7.6 inhabitants per km²7.6Montrose CountyMontrose County: 7.6 inhabitants per km²7.6Pitkin CountyPitkin County: 6.7 inhabitants per km²6.7Elbert CountyElbert County: 5.8 inhabitants per km²5.8Otero CountyOtero County: 5.6 inhabitants per km²5.6Montezuma CountyMontezuma County: 5 inhabitants per km²5Rio Grande CountyRio Grande County: 4.8 inhabitants per km²4.8Logan CountyLogan County: 4.4 inhabitants per km²4.4Routt CountyRoutt County: 4.1 inhabitants per km²4.1Archuleta CountyArchuleta County: 4 inhabitants per km²4Ouray CountyOuray County: 3.6 inhabitants per km²3.6Grand CountyGrand County: 3.3 inhabitants per km²3.3Park CountyPark County: 3.2 inhabitants per km²3.2Custer CountyCuster County: 2.8 inhabitants per km²2.8Prowers CountyProwers County: 2.8 inhabitants per km²2.8Crowley CountyCrowley County: 2.8 inhabitants per km²2.8
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2022
inhabitants per km²
Change on 2021
1Denver County1,808+0.7%
2Broomfield County891.6+1%
3Arapahoe County319.1+0.4%
4Jefferson County291.3-0.7%
5Adams County174.7+0.9%
6Boulder County174.3+0.2%
7Douglas County172.9+1.7%
8El Paso County134.7+0.5%
9Larimer County54.7+1.4%
10Weld County34+3.2%
11Pueblo County27.4+0.1%
12Summit County19.9+0.1%
13Mesa County18.4+0.7%
14Teller County17.2-0.4%
15Gilpin County15.2+0.1%
16La Plata County12.9+0.7%
17Eagle County12.7-0.8%
18Fremont County12.5+0.7%
19Delta County10.7+0.5%
20Clear Creek County9.1-1.3%
21Morgan County8.9+1.6%
22Alamosa County8.9+0.3%
23Garfield County8.2+0.5%
24Chaffee County7.7+2.6%
25Lake County7.6-0.2%
26Montrose County7.6+1.4%
27Pitkin County6.7-2.7%
28Elbert County5.8+2.5%
29Otero County5.6-1.5%
30Montezuma County5+0.8%
31Rio Grande County4.8-0.8%
32Logan County4.4-1%
33Routt County4.1+0.4%
34Archuleta County4+1.2%
35Ouray County3.6+0.7%
36Grand County3.3-0.5%
37Park County3.2+1%
38Custer County2.8+5.5%
39Prowers County2.8-1%
40Crowley County2.8-2.6%
41Phillips County2.5-1.3%
42San Miguel County2.4-0.9%
43Conejos County2.3-0.3%
44Gunnison County2.1+0.2%
45Huerfano County1.7+2.1%
46Yuma County1.6+0.1%
47Sedgwick County1.6-1.6%
48Bent County1.4+1.7%
49Kit Carson County1.3+1.1%
50Las Animas County1.2-0.3%
51Costilla County1.1-0.1%
52Moffat County1.1+0.4%
53Dolores County0.9+3.5%
54Lincoln County0.8+0.9%
55Saguache County0.8+1.8%
56San Juan County0.8+8.4%
57Rio Blanco County0.8+2.1%
58Washington County0.7-0.5%
59Baca County0.5-1.9%
60Mineral County0.4-0.2%
61Cheyenne County0.4+0.5%
62Jackson County0.3-3.4%
63Kiowa County0.3-1.6%
64Hinsdale County0.30%

Other periods

About this ranking

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

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Rank Counties in Colorado by population density using official data, and cite the source.
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Questions

Which county has the highest population density?

Denver County, with 1,808 inhabitants per km² in 2022, according to the U.S. Census Bureau.

Which county has the lowest population density?

Hinsdale County, with 0.3 inhabitants per km² in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved 2026-10-09.

Population density: other rankings

Counties in Colorado: more rankings