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Colorado counties by population

Number of counties: 64
Population: 5,723,176
Largest county: El Paso County
Table of counties in Colorado sorted by population from largest to smallest.
CountyPopulation
El Paso County722,736
Denver County706,799
Arapahoe County651,621
Jefferson County580,130
Adams County514,969
Larimer County354,670
Douglas County351,929
Boulder County328,713
Weld County322,424
Pueblo County167,453
Mesa County154,685
Broomfield County72,697
Garfield County61,221
Eagle County55,693
La Plata County55,673
Fremont County49,007
Montrose County42,328
Delta County31,133
Summit County31,042
Morgan County28,868
Montezuma County25,916
Elbert County25,897
Routt County24,899
Teller County24,607
Logan County21,765
Chaffee County19,436
Otero County18,665
Pitkin County17,471
Park County17,384
Gunnison County16,851
Alamosa County16,377
Grand County15,629
Las Animas County14,531
Archuleta County13,267
Moffat County13,240
Prowers County11,966
Rio Grande County11,476
Yuma County9,944
Clear Creek County9,427
San Miguel County8,084
Conejos County7,579
Lake County7,417
Kit Carson County7,071
Huerfano County6,787
Rio Blanco County6,495
Saguache County6,369
Crowley County6,018
Bent County5,861
Gilpin County5,812
Lincoln County5,630
Ouray County4,850
Washington County4,834
Custer County4,720
Phillips County4,497
Baca County3,519
Costilla County3,517
Sedgwick County2,459
Dolores County2,288
Cheyenne County1,691
Kiowa County1,414
Jackson County1,375
Hinsdale County858
Mineral County794
San Juan County698

What is the largest county in Colorado?

El Paso County is the largest county in Colorado with a population of 722,736.

TOP-5 counties by population in Colorado:
  • El Paso County
  • Denver County
  • Arapahoe County
  • Jefferson County
  • Adams County