Ranking of Colorado Cities and Places By Population with Unclassified Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.30M people in Colorado with Unclassified ancestry. Among all Colorado cities and places, Denver city had the highest population with Unclassified ancestry (136.58K), followed by Colorado Springs city (109.90K), and Aurora city (79.98K).
The chart and table below shows the top 10 cities and places with high number of people with Unclassified ancestry.
You can see similar information for other states and for other ancestry groups in Colorado.
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Related Topics: US Census 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Colorado Cities and Places By Population with Unclassified Ancestry in 2021
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| Rank | City or Place | Population |
|---|---|---|
| 1 | Denver city | 136581 |
| 2 | Colorado Springs city | 109904 |
| 3 | Aurora city | 79978 |
| 4 | Thornton city | 34476 |
| 5 | Lakewood city | 33974 |
| 6 | Fort Collins city | 31379 |
| 7 | Boulder city | 27678 |
| 8 | Arvada city | 27389 |
| 9 | Pueblo city | 26955 |
| 10 | Longmont city | 26477 |
| 11 | Westminster city | 25182 |
| 12 | Greeley city | 25093 |
| 13 | Centennial city | 20428 |
| 14 | Highlands Ranch CDP | 19149 |
| 15 | Grand Junction city | 16113 |
| 16 | Commerce City city | 15631 |
| 17 | Castle Rock town | 14888 |
| 18 | Loveland city | 13862 |
| 19 | Parker town | 13410 |
| 20 | Broomfield city | 13220 |
| 21 | Security-Widefield CDP | 12227 |
| 22 | Northglenn city | 10357 |
| 23 | Pueblo West CDP | 9879 |
| 24 | Brighton city | 9123 |
| 25 | Littleton city | 8557 |
| 26 | Dakota Ridge CDP | 8036 |
| 27 | Fountain city | 8032 |
| 28 | Lafayette city | 7519 |
| 29 | Englewood city | 7364 |
| 30 | Wheat Ridge city | 7254 |
| 31 | Sherrelwood CDP | 6950 |
| 32 | Ken Caryl CDP | 6807 |
| 33 | Windsor town | 6379 |
| 34 | Evans city | 6357 |
| 35 | Erie town | 5963 |
| 36 | Montrose city | 5742 |
| 37 | Clifton CDP | 5703 |
| 38 | Golden city | 5219 |
| 39 | Cañon City city | 4596 |
| 40 | Columbine CDP | 4558 |
| 41 | Welby CDP | 4341 |
| 42 | Cimarron Hills CDP | 4260 |
| 43 | Steamboat Springs city | 4107 |
| 44 | Firestone town | 3966 |
| 45 | Federal Heights city | 3946 |
| 46 | Four Square Mile CDP | 3895 |
| 47 | Frederick town | 3792 |
| 48 | Louisville city | 3762 |
| 49 | Sterling city | 3666 |
| 50 | Fruita city | 3388 |
| 51 | Black Forest CDP | 3382 |
| 52 | Berkley CDP | 3298 |
| 53 | Delta city | 3268 |
| 54 | Durango city | 3123 |
| 55 | Edwards CDP | 3094 |
| 56 | Rifle city | 3000 |
| 57 | Air Force Academy CDP | 2969 |
| 58 | Superior town | 2921 |
| 59 | Gypsum town | 2850 |
| 60 | Fairmount CDP | 2809 |
| 61 | Derby CDP | 2683 |
| 62 | Lone Tree city | 2649 |
| 63 | Fort Carson CDP | 2570 |
| 64 | Gunbarrel CDP | 2494 |
| 65 | Greenwood Village city | 2467 |
| 66 | Eagle town | 2346 |
| 67 | Fort Lupton city | 2313 |
| 68 | Stratmoor CDP | 2258 |
| 69 | Alamosa city | 2251 |
| 70 | Fort Morgan city | 2204 |
| 71 | Breckenridge town | 2189 |
| 72 | Johnstown town | 2162 |
| 73 | Cherry Creek CDP | 2141 |
| 74 | Twin Lakes CDP (Adams County) | 2110 |
| 75 | Berthoud town | 2103 |
| 76 | Shaw Heights CDP | 2090 |
| 77 | Wellington town | 2084 |
| 78 | Applewood CDP | 2080 |
| 79 | Castle Pines city | 2042 |
| 80 | Fruitvale CDP | 2000 |
| 81 | West Pleasant View CDP | 1998 |
| 82 | Monument town | 1993 |
| 83 | Woodmoor CDP | 1981 |
| 84 | The Pinery CDP | 1961 |
| 85 | Cortez city | 1959 |
| 86 | Glenwood Springs city | 1949 |
| 87 | Craig city | 1933 |
| 88 | Orchard Mesa CDP | 1903 |
| 89 | Avon town | 1845 |
| 90 | Silverthorne town | 1773 |
| 91 | Lochbuie town | 1741 |
| 92 | Evergreen CDP | 1681 |
| 93 | Woodland Park city | 1664 |
| 94 | Trinidad city | 1622 |
| 95 | Stonegate CDP | 1607 |
| 96 | Milliken town | 1581 |
| 97 | Lamar city | 1576 |
| 98 | Florence city | 1517 |
| 99 | La Junta city | 1502 |
| 100 | Dove Valley CDP | 1481 |
| 101 | Redlands CDP | 1432 |
| 102 | Aspen city | 1430 |
| 103 | Roxborough Park CDP | 1422 |
| 104 | Basalt town | 1388 |
| 105 | Gunnison city | 1386 |
| 106 | Mead town | 1371 |
| 107 | Edgewater city | 1295 |
| 108 | Gleneagle CDP | 1277 |
| 109 | Strasburg CDP | 1274 |
| 110 | Genesee CDP | 1256 |
| 111 | Severance town | 1247 |
| 112 | Dacono city | 1243 |
| 113 | Carbondale town | 1224 |
| 114 | Buena Vista town | 1191 |
| 115 | Battlement Mesa CDP | 1183 |
| 116 | Lincoln Park CDP | 1170 |
| 117 | Vail town | 1161 |
| 118 | Colorado City CDP | 1154 |
| 119 | Cherry Hills Village city | 1105 |
| 120 | Timnath town | 1099 |
| 121 | Walsenburg city | 1090 |
| 122 | Frisco town | 1080 |
| 123 | Bennett town | 1063 |
| 124 | Glendale city | 1019 |
| 125 | Niwot CDP | 1011 |
| 126 | Salida city | 1008 |
| 127 | Meridian CDP | 956 |
| 128 | Todd Creek CDP | 944 |
| 129 | New Castle town | 925 |
| 130 | Loma CDP | 917 |
| 130 | Silt town | 917 |
| 131 | Acres Green CDP | 889 |
| 132 | Palisade town | 888 |
| 133 | Ponderosa Park CDP | 881 |
| 134 | Penrose CDP | 875 |
| 135 | Yuma city | 866 |
| 136 | Castle Pines Village CDP | 864 |
| 137 | Eaton town | 859 |
| 138 | Park Center CDP | 857 |
| 139 | Brush city | 840 |
| 140 | Kremmling town | 833 |
| 141 | Estes Park town | 832 |
| 142 | Leadville North CDP | 822 |
| 143 | Snowmass Village town | 813 |
| 144 | Granby town | 810 |
| 145 | Sierra Ridge CDP | 801 |
| 146 | Orchard City town | 781 |
| 147 | Sheridan city | 757 |
| 148 | Rocky Ford city | 721 |
| 149 | Leadville city | 718 |
| 150 | Burlington city | 716 |
| 151 | Telluride town | 705 |
| 152 | Center town | 698 |
| 153 | Holly Hills CDP | 686 |
| 154 | La Salle town | 679 |
| 155 | Stepping Stone CDP | 677 |
| 156 | Cedaredge town | 675 |
| 156 | Palmer Lake town | 675 |
| 157 | Monte Vista city | 665 |
| 158 | Platteville town | 664 |
| 159 | Manitou Springs city | 659 |
| 160 | Kittredge CDP | 647 |
| 161 | Fraser town | 638 |
| 162 | Rangely town | 636 |
| 163 | Kersey town | 629 |
| 164 | Parachute town | 622 |
| 165 | Elizabeth town | 606 |
| 166 | Bayfield town | 605 |
| 167 | Nederland town | 600 |
| 168 | Wray city | 573 |
| 169 | Las Animas city | 563 |
| 170 | Akron town | 557 |
| 170 | Meeker town | 557 |
| 171 | Ordway town | 551 |
| 172 | Inverness CDP | 535 |
| 173 | Aetna Estates CDP | 525 |
| 174 | Gilcrest town | 487 |
| 175 | Byers CDP | 468 |
| 176 | Haxtun town | 463 |
| 177 | Lyons town | 455 |
| 178 | Tabernash CDP | 447 |
| 179 | Hudson town | 438 |
| 180 | Winter Park town | 431 |
| 181 | Holyoke city | 418 |
| 182 | Hayden town | 414 |
| 183 | Ellicott CDP | 409 |
| 184 | El Jebel CDP | 408 |
| 184 | Hot Sulphur Springs town | 408 |
| 185 | Cripple Creek city | 407 |
| 186 | Springfield town | 403 |
| 187 | Ault town | 396 |
| 188 | Coal Creek CDP | 392 |
| 189 | Mountain Village town | 378 |
| 190 | Georgetown town | 372 |
| 191 | Idaho Springs city | 370 |
| 192 | Laporte CDP | 356 |
| 193 | Dolores town | 340 |
| 194 | Minturn town | 339 |
| 195 | Blue River town | 328 |
| 196 | Ouray city | 327 |
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