Colorado Population By County in 2013

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2013, the population of Colorado was 5,270,774. Among all Colorado counties, El Paso[object Promise] had the highest population (655,178), followed by Denver[object Promise] (649,270), and Arapahoe[object Promise] (609,089). San Juan[object Promise] was the least populated county (692).

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 2013
Colorado Population By County in 2013
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County Population % of State Population
Adams 469995 8.92
Alamosa 15794 0.30
Arapahoe 609089 11.56
Archuleta 12225 0.23
Baca 3656 0.07
Bent 5759 0.11
Boulder 309538 5.87
Broomfield 60158 1.14
Chaffee 18375 0.35
Cheyenne 1878 0.04
Clear Creek 9025 0.17
Conejos 8199 0.16
Costilla 3540 0.07
Crowley 5352 0.10
Custer 4260 0.08
Delta 30349 0.58
Denver 649270 12.32
Dolores 2033 0.04
Douglas 306407 5.81
Eagle 52814 1.00
Elbert 23543 0.45
El Paso 655178 12.43
Fremont 46360 0.88
Garfield 56945 1.08
Gilpin 5535 0.11
Grand 14320 0.27
Gunnison 15597 0.30
Hinsdale 803 0.02
Huerfano 6465 0.12
Jackson 1338 0.03
Jefferson 552242 10.48
Kiowa 1393 0.03
Kit Carson 8259 0.16
Lake 7276 0.14
La Plata 53432 1.01
Larimer 316426 6.00
Las Animas 14404 0.27
Lincoln 5435 0.10
Logan 22182 0.42
Mesa 147249 2.79
Mineral 732 0.01
Moffat 13129 0.25
Montezuma 25575 0.49
Montrose 40584 0.77
Morgan 28217 0.54
Otero 18449 0.35
Ouray 4554 0.09
Park 16190 0.31
Phillips 4384 0.08
Pitkin 17474 0.33
Prowers 12319 0.23
Pueblo 161096 3.06
Rio Blanco 6699 0.13
Rio Grande 11674 0.22
Routt 23610 0.45
Saguache 6240 0.12
San Juan 692 0.01
San Miguel 7632 0.14
Sedgwick 2338 0.04
Summit 28741 0.55
Teller 23372 0.44
Washington 4731 0.09
Weld 270105 5.13
Yuma 10139 0.19