Colorado

General Information


Official name Colorado
Capital Denver
ISO code US-CO
Statistical agency Bureau of the Census, USA


Administrative units

codecountiesadministrative centerarea in
sq.km.
population
2000-04-01
census
population
2010-04-01
census
population
2015-07-01
estimate
08001Adams CountyBrighton3,024.20363,857441,603491,337
08003Alamosa CountyAlamosa1,871.6314,96615,44516,496
08005Arapahoe CountyLittleton2,067.07487,967572,003631,096
08007Archuleta CountyPagosa Springs3,496.959,89812,08412,352
08009Baca CountySpringfield6,617.344,5173,7883,615
08011Bent CountyLas Animas3,918.295,9986,4995,830
08013Boulder CountyBoulder1,881.08291,288294,567319,372
08014Broomfield CountyBroomfield85.55 55,88965,065
08015Chaffee CountySalida2,624.6916,24217,80918,658
08017Cheyenne CountyCheyenne Wells4,605.722,2311,8361,829
08019Clear Creek CountyGeorgetown1,023.649,3229,0889,303
08021Conejos CountyConejos3,334.328,4008,2568,130
08023Costilla CountySan Luis3,177.793,6633,5243,584
08025Crowley CountyOrdway2,039.415,5185,8235,562
08027Custer CountyWestcliffe1,913.043,5034,2554,445
08029Delta CountyDelta2,957.9027,83430,95229,979
08031Denver CountyDenver396.27554,636600,158682,545
08033Dolores CountyDove Creek2,763.651,8442,0641,978
08035Douglas CountyCastle Rock2,176.24175,766285,465322,387
08037Eagle CountyEagle4,362.9141,65952,19753,605
08039Elbert CountyKiowa4,793.6819,87223,08624,735
08041El Paso CountyColorado Springs5,508.39516,929622,263674,471
08043Fremont CountyCanon City3,970.6346,14546,82446,692
08045Garfield CountyGlenwood Springs7,634.1543,79156,38958,095
08047Gilpin CountyCentral City388.244,7575,4415,828
08049Grand CountyHot Sulphur Springs4,781.9712,44214,84314,615
08051Gunnison CountyGunnison8,389.2313,95615,32416,067
08053Hinsdale CountyLake City2,893.66790843774
08055Huerfano CountyWalsenburg4,120.677,8626,7116,492
08057Jackson CountyWalden4,179.521,5771,3941,356
08059Jefferson CountyGolden1,979.29527,056534,543565,524
08061Kiowa CountyEads4,578.501,6221,3981,423
08063Kit Carson CountyBurlington5,596.508,0118,2707,758
08065Lake CountyDurango976.197,8127,3107,485
08067La Plata CountyLeadville4,382.4743,94151,33454,688
08069Larimer CountyFort Collins6,723.61251,494299,630333,577
08071Las Animas CountyTrinidad12,361.1615,20715,50714,058
08073Lincoln CountyHugo6,676.036,0875,4675,557
08075Logan CountySterling4,761.8220,50422,70922,036
08077Mesa CountyGrand Junction8,621.99116,255146,723148,513
08079Mineral CountyCreede2,267.97831712726
08081Moffat CountyCraig12,285.0613,18413,79512,937
08083Montezuma CountyCortez5,256.4623,83025,53526,168
08085Montrose CountyMontrose5,803.3933,43241,27640,946
08087Morgan CountyFort Morgan3,316.3027,17128,15928,360
08089Otero CountyLa Junta3,268.4620,31118,83118,343
08091Ouray CountyOuray1,402.713,7424,4364,691
08093Park CountyFairplay5,682.0514,52316,20616,510
08095Phillips CountyHolyoke1,781.734,4804,4424,349
08097Pitkin CountyAspen2,514.1014,87217,14817,787
08099Prowers CountyLamar4,243.4414,48312,55111,954
08101Pueblo CountyPueblo6,179.97141,472159,063163,591
08103Rio Blanco CountyMeeker8,342.175,9866,6666,571
08105Rio Grande CountyDel Norte2,361.9712,41311,98211,543
08107Routt CountySteamboat Springs6,117.6319,69023,50924,130
08109Saguache CountySaguache8,206.465,9176,1086,251
08111San Juan CountySilverton1,003.59558699701
08113San Miguel CountyTelluride3,332.306,5947,3597,879
08115Sedgwick CountyJulesburg1,419.422,7472,3792,399
08117Summit CountyBreckenridge1,575.6523,54827,99430,257
08119Teller CountyCripple Creek1,442.7820,55523,35023,385
08121Washington CountyAkron6,521.674,9264,8144,864
08123Weld CountyGreeley10,326.90180,936252,825285,174
08125Yuma CountyWray6,123.799,84110,04310,146
 total 268,431.264,301,2615,029,1965,456,574
source: Bureau of the Census, USA.
note: area = land area in square kilometers (km2) [to get square miles divide km2 area by 2.589988].

Main cities

namepopulation
1990-04-01
census
population
2000-04-01
census
population
2010-04-01
census
population
2013-07-01
estimate
Denver467,610554,636600,158649,495
Colorado Springs281,140360,890416,427439,886
Aurora222,103276,393325,078345,803
Fort Collins87,758118,652143,986152,061
Lakewood126,481144,126142,980147,214
Thornton55,03182,384118,772127,359
Arvada89,235102,153106,433111,707
Westminster74,625100,940106,114110,945
Pueblo98,640102,121106,595108,249
Centennial....100,377106,114
Boulder....97,385103,166
Greeley....92,88996,539
Longmont....86,27089,919
Loveland....66,85971,334
Grand Junction....58,56659,778
Broomfield....55,88959,471
Castle Rock....48,23153,063
source: Bureau of the Census, USA.