Colorado Non-Hispanic White Alone Citizen Population By County in 2018 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the Non-Hispanic White Alone citizen population for Colorado was 3,187,680 and represented 61.16% of the total Colorado citizen population.

Among all Colorado counties, El Paso had the highest Non-Hispanic White Alone citizen population (474.86K), followed by Jefferson (443.09K), and Arapahoe (380.41K).

In terms of percentages, Ouray had the highest percentage of its citizen population being Non-Hispanic White Alone (93.57%), followed by Dolores (90.96%), and Routt (90.77%).

The chart and table below shows the Non-Hispanic White Alone citizen population of each county and the percentage of each county's citizen population that were Non-Hispanic White Alone.

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

You can also see similar information for other ethnicities.

See this for other years:
Colorado Non-Hispanic White Alone Citizen Population By County in 2018
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County Citizen Population % of County Citizen Population
El Paso 474855 71.37
Jefferson 443085 80.20
Arapahoe 380410 65.29
Denver 366395 58.62
Larimer 277655 84.68
Douglas 269775 84.89
Adams 249375 55.89
Boulder 244810 81.27
Weld 194075 69.77
Mesa 122115 83.06
Pueblo 85865 53.19
Broomfield 50430 79.97
La Plata 43280 79.57
Garfield 39685 76.49
Fremont 37140 80.24
Eagle 36000 76.89
Montrose 31230 78.22
Delta 24625 83.33
Summit 24490 87.61
Elbert 22265 89.58
Routt 21885 90.77
Teller 21300 89.33
Montezuma 18760 73.04
Logan 16715 79.84
Morgan 16540 64.76
Chaffee 16260 86.42
Park 15345 89.45
Pitkin 15040 90.55
Gunnison 14310 88.74
Grand 13000 89.53
Moffat 10510 83.08
Otero 9955 56.61
Archuleta 9830 78.42
Clear Creek 8190 89.80
Alamosa 7985 51.32
Yuma 7530 82.66
Las Animas 7440 54.55
Prowers 7145 63.91
San Miguel 6760 90.07
Rio Grande 5905 54.05
Kit Carson 5850 81.88
Rio Blanco 5470 86.41
Gilpin 5105 86.67
Lake 4990 70.78
Ouray 4365 93.57
Washington 4205 88.71
Huerfano 4180 64.51
Custer 3940 85.01
Saguache 3665 60.93
Bent 3645 65.21
Lincoln 3630 68.36
Conejos 3605 45.03
Crowley 3475 64.65
Phillips 3195 81.51
Baca 3035 87.34
Sedgwick 1930 83.55
Dolores 1660 90.96
Cheyenne 1585 81.49
Kiowa 1260 87.20
Costilla 1210 34.87
Jackson 1035 82.80
Hinsdale 790 90.29
Mineral 715 86.67
San Juan 490 89.91