Colorado Population By County in 2023

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2023, the population of Colorado was 5,877,610. Among all Colorado counties, El Paso had the highest population (744,215), followed by Denver (716,577), and Arapahoe (656,061). Hinsdale was the least populated county (765).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and by state for the United States.

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Colorado Population By County in 2023
Colorado Population By County in 2023
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County Population % of State Population
Adams 533365 9.07
Alamosa 16655 0.28
Arapahoe 656061 11.16
Archuleta 14189 0.24
Baca 3344 0.06
Bent 5681 0.10
Boulder 326831 5.56
Broomfield 76860 1.31
Chaffee 20617 0.35
Cheyenne 1727 0.03
Clear Creek 9147 0.16
Conejos 7521 0.13
Costilla 3628 0.06
Crowley 5636 0.10
Custer 5534 0.09
Delta 31746 0.54
Denver 716577 12.19
Dolores 2513 0.04
Douglas 383906 6.53
Eagle 54381 0.93
Elbert 28806 0.49
El Paso 744215 12.66
Fremont 50318 0.86
Garfield 62707 1.07
Gilpin 5926 0.10
Grand 15935 0.27
Gunnison 17321 0.30
Hinsdale 765 0.01
Huerfano 7055 0.12
Jackson 1309 0.02
Jefferson 576366 9.81
Kiowa 1384 0.02
Kit Carson 6994 0.12
Lake 7365 0.13
La Plata 56407 0.96
Larimer 370771 6.31
Las Animas 14348 0.24
Lincoln 5480 0.09
Logan 20619 0.35
Mesa 159681 2.72
Mineral 944 0.02
Moffat 13327 0.23
Montezuma 26531 0.45
Montrose 44156 0.75
Morgan 29524 0.50
Otero 18136 0.31
Ouray 5176 0.09
Park 18117 0.31
Phillips 4476 0.08
Pitkin 16640 0.28
Prowers 11751 0.20
Pueblo 169422 2.88
Rio Blanco 6569 0.11
Rio Grande 11188 0.19
Routt 25064 0.43
Saguache 6688 0.11
San Juan 802 0.01
San Miguel 7868 0.13
Sedgwick 2299 0.04
Summit 30465 0.52
Teller 24617 0.42
Washington 4855 0.08
Weld 359442 6.12
Yuma 9862 0.17