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County | 2024 Pop. | Change (2020) | Area (mi²) | Density (/mi²) | Location |
---|---|---|---|---|---|
El Paso County | 747,834 | 2.11% | 821 | 352 | |
Denver County | 719,701 | 0.29% | 59 | 4,704 | |
Arapahoe County | 655,853 | 0.09% | 308 | 822 | |
Jefferson County | 576,921 | -1.06% | 295 | 755 | |
Adams County | 539,221 | 3.6% | 450 | 462 | |
Douglas County | 391,875 | 8.76% | 325 | 466 | |
Larimer County | 373,965 | 3.9% | 1K | 144 | |
Weld County | 368,618 | 11.21% | 1.5K | 93 | |
Boulder County | 326,323 | -1.39% | 280 | 449 | |
Pueblo County | 169,372 | 0.61% | 921 | 71 | |
Mesa County | 160,831 | 3.09% | 1.3K | 48 | |
Broomfield County | 77,525 | 4.07% | 13 | 2,349 | |
Garfield County | 63,158 | 2.21% | 1.1K | 21 | |
La Plata County | 56,261 | 1.06% | 652 | 33 | |
Eagle County | 53,544 | -3.8% | 650 | 32 | |
Fremont County | 51,020 | 4.38% | 592 | 33 | |
Montrose County | 44,505 | 3.94% | 865 | 20 | |
Delta County | 31,932 | 2.82% | 441 | 28 | |
Summit County | 30,294 | -2.28% | 235 | 50 | |
Morgan County | 29,782 | 2.43% | 494 | 23 | |
Elbert County | 29,770 | 13.56% | 714 | 16 | |
Montezuma County | 26,595 | 2.73% | 783 | 13 | |
Routt County | 25,056 | 0.9% | 912 | 11 | |
Teller County | 24,374 | -1.5% | 215 | 44 | |
Chaffee County | 20,969 | 7.62% | 391 | 21 | |
Logan County | 20,446 | -3.6% | 710 | 11 | |
Park County | 18,313 | 5.14% | 847 | 8 | |
Otero County | 17,961 | -3.77% | 487 | 14 | |
Gunnison County | 17,322 | 2.19% | 1.3K | 5 | |
Alamosa County | 16,723 | 2.11% | 279 | 23 | |
Pitkin County | 16,433 | -5.31% | 375 | 17 | |
Grand County | 16,136 | 2.47% | 713 | 9 | |
Archuleta County | 14,389 | 7.19% | 521 | 11 | |
Las Animas County | 14,385 | -0.72% | 1.8K | 3 | |
Moffat County | 13,449 | 1.36% | 1.8K | 3 | |
Prowers County | 11,629 | -3.23% | 632 | 7 | |
Rio Grande County | 11,039 | -4.35% | 352 | 12 | |
Yuma County | 9,829 | -1.42% | 913 | 4 | |
Clear Creek County | 8,927 | -4.96% | 152 | 23 | |
San Miguel County | 7,728 | -4.05% | 497 | 6 | |
Conejos County | 7,455 | 0.05% | 497 | 6 | |
Lake County | 7,384 | -0.32% | 146 | 20 | |
Huerfano County | 7,013 | 2.72% | 614 | 4 | |
Kit Carson County | 7,005 | -0.81% | 834 | 3 | |
Saguache County | 6,749 | 5.63% | 1.2K | 2 | |
Rio Blanco County | 6,589 | 1.06% | 1.2K | 2 | |
Gilpin County | 5,966 | 2.51% | 58 | 40 | |
Bent County | 5,923 | 8.22% | 584 | 4 | |
Custer County | 5,731 | 21.34% | 285 | 8 | |
Crowley County | 5,645 | -0.76% | 304 | 7 | |
Lincoln County | 5,450 | -3.74% | 1K | 2 | |
Ouray County | 5,249 | 7.52% | 209 | 10 | |
Washington County | 4,863 | 1.04% | 972 | 2 | |
Phillips County | 4,504 | -0.51% | 266 | 7 | |
Costilla County | 3,641 | 3.97% | 474 | 3 | |
Baca County | 3,253 | -6.52% | 986 | 1 | |
Dolores County | 2,566 | 10.08% | 412 | 2 | |
Sedgwick County | 2,312 | -3.22% | 212 | 4 | |
Cheyenne County | 1,723 | -1.32% | 686 | 1 | |
Kiowa County | 1,334 | -8.32% | 682 | 1 | |
Jackson County | 1,304 | -5.44% | 623 | 1 | |
Mineral County | 957 | 9.5% | 338 | 1 | |
San Juan County | 798 | 12.24% | 150 | 2 | |
Hinsdale County | 759 | -3.68% | 431 | 1 |
There are 64 counties in Colorado. The most populous county in Colorado in 2019 is Denver County, home of Denver, with a population of 704,621. This represents significant population growth of 16.81% since the 2010 census. Colorado is home to several other counties exceeding 500,000 residents including El Paso County (699,232), Arapahoe County (643,052), Jefferson County (574,613), and Adams County (503,167). All of these counties have experienced population growth of at least 7% but not exceeding Denver County's growth.
The smallest county in Colorado in terms of population is San Juan County with just 715 people, up 0.99% from the last census. There are two other counties in Colorado with populations under 800: Mineral County (766) and Hinsdale County (794). Colorado has a total of 26 counties under 10,000 residents. Other small Colorado counties include Kiowa County (1,376), Jackson County (1,385), Cheyenne County (1,845), Dolores County (2,067), and Sedgwick County (2,344). The most significant growth among these counties was Mineral County at 8.81%. Hinsdale County experienced the most dramatic decline with a growth rate of -5.92%.
Broomsfield County, Colorado experienced the most significant population growth in the state since the census, growing by 21.57%. Other counties with rapid growth rates include Weld County (19.85%), Douglas County (16.85%), Denver County (16.81%), and Larimer County (14.50%). The county that has experienced the most extreme negative growth is Kit Carson County with a growth rate of -13.38% which has brought its population down to 7,158.
State | Counties |
---|---|
Texas | 254 |
Georgia | 159 |
Virginia | 133 |
Kentucky | 120 |
Missouri | 115 |
Kansas | 105 |
Illinois | 102 |
North Carolina | 100 |
Iowa | 99 |
Tennessee | 95 |
Nebraska | 93 |
Indiana | 92 |
Ohio | 88 |
Minnesota | 87 |
Michigan | 83 |
Mississippi | 82 |
Puerto Rico | 78 |
Oklahoma | 77 |
Arkansas | 75 |
Wisconsin | 72 |
Alabama | 67 |
Florida | 67 |
Pennsylvania | 67 |
South Dakota | 66 |
Colorado | 64 |
Louisiana | 64 |
New York | 62 |
California | 58 |
Montana | 56 |
West Virginia | 55 |
North Dakota | 53 |
South Carolina | 46 |
Idaho | 44 |
Washington | 39 |
Oregon | 36 |
New Mexico | 33 |
Alaska | 30 |
Utah | 29 |
Maryland | 24 |
Wyoming | 23 |
New Jersey | 21 |
Nevada | 17 |
Maine | 16 |
Arizona | 15 |
Massachusetts | 14 |
Vermont | 14 |
New Hampshire | 10 |
Connecticut | 9 |
Hawaii | 5 |
Rhode Island | 5 |
Delaware | 3 |
District of Columbia | 1 |