Ranking of Colorado Cities and Places By Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the population of Colorado (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 300,620. Among all Colorado cities and places, Denver city had the highest population (aged 25 years and above) with an educational attainment of Less than High School Diploma (51,244), followed by Aurora city (33,410), and Colorado Springs city (19,395).
The chart below shows the top 10 Colorado cities and places, and the table below shows the ranking of all Colorado cities and places.
You can see similar information for other educational attainments.
You can also see similar information for other states and for the United States.
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Related Topics: Colorado ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Colorado Cities and Places By Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Items per page:
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| Rank | City or Place | Number of People |
|---|---|---|
| 1 | Denver city | 51244 |
| 2 | Aurora city | 33410 |
| 3 | Colorado Springs city | 19395 |
| 4 | Thornton city | 10787 |
| 5 | Greeley city | 10776 |
| 6 | Pueblo city | 8297 |
| 7 | Lakewood city | 8185 |
| 8 | Westminster city | 6526 |
| 9 | Commerce City city | 6182 |
| 10 | Longmont city | 5734 |
| 11 | Arvada city | 4073 |
| 12 | Grand Junction city | 3987 |
| 13 | Brighton city | 3402 |
| 14 | Fort Collins city | 3042 |
| 15 | Northglenn city | 2789 |
| 16 | Evans city | 2621 |
| 17 | Federal Heights city | 2592 |
| 18 | Welby CDP | 2359 |
| 19 | Sherrelwood CDP | 2318 |
| 20 | Derby CDP | 2123 |
| 21 | Centennial city | 2041 |
| 22 | Loveland city | 1875 |
| 23 | Boulder city | 1843 |
| 24 | Security-Widefield CDP | 1791 |
| 25 | Montrose city | 1761 |
| 26 | Englewood city | 1746 |
| 27 | Broomfield city | 1738 |
| 28 | Clifton CDP | 1731 |
| 29 | Fort Morgan city | 1677 |
| 30 | Pueblo West CDP | 1580 |
| 31 | Twin Lakes CDP (Adams County) | 1509 |
| 32 | Wheat Ridge city | 1475 |
| 33 | Parker town | 1448 |
| 34 | Littleton city | 1321 |
| 35 | Fort Lupton city | 1301 |
| 36 | Castle Rock town | 1283 |
| 37 | Berkley CDP | 1086 |
| 38 | Sterling city | 1057 |
| 39 | Lafayette city | 1025 |
| 40 | Lochbuie town | 945 |
| 41 | Delta city | 939 |
| 42 | Edwards CDP | 912 |
| 43 | Fountain city | 911 |
| 44 | Lamar city | 896 |
| 45 | Glenwood Springs city | 851 |
| 46 | Cañon City city | 847 |
| 47 | Highlands Ranch CDP | 801 |
| 48 | Shaw Heights CDP | 792 |
| 49 | Firestone town | 787 |
| 50 | Rifle city | 756 |
| 51 | Dakota Ridge CDP | 734 |
| 52 | La Junta city | 704 |
| 53 | Fruita city | 683 |
| 54 | Sheridan city | 675 |
| 55 | Gypsum town | 670 |
| 56 | Four Square Mile CDP | 667 |
| 57 | Trinidad city | 659 |
| 58 | Ken Caryl CDP | 658 |
| 59 | Brush city | 644 |
| 60 | Windsor town | 640 |
| 61 | Milliken town | 609 |
| 62 | Alamosa city | 605 |
| 63 | Craig city | 578 |
| 64 | Stratmoor CDP | 560 |
| 65 | Golden city | 550 |
| 66 | Cimarron Hills CDP | 537 |
| 67 | Columbine CDP | 530 |
| 68 | Platteville town | 473 |
| 69 | Erie town | 470 |
| 70 | El Jebel CDP | 469 |
| 71 | Rocky Ford city | 415 |
| 72 | Eaton town | 413 |
| 73 | Monte Vista city | 408 |
| 74 | Steamboat Springs city | 398 |
| 75 | Glendale city | 397 |
| 76 | Center town | 389 |
| 77 | Dacono city | 387 |
| 78 | Eagle town | 383 |
| 78 | Olathe town | 383 |
| 79 | Cortez city | 374 |
| 80 | Avon town | 368 |
| 81 | Johnstown town | 363 |
| 82 | Durango city | 360 |
| 83 | Salida city | 352 |
| 84 | Frederick town | 351 |
| 85 | Fruitvale CDP | 348 |
| 86 | Silverthorne town | 344 |
| 87 | Battlement Mesa CDP | 340 |
| 88 | Louisville city | 338 |
| 89 | Carbondale town | 332 |
| 90 | Aristocrat Ranchettes CDP | 327 |
| 91 | Walsenburg city | 325 |
| 92 | Orchard Mesa CDP | 318 |
| 93 | Berthoud town | 307 |
| 94 | Holyoke city | 305 |
| 95 | Las Animas city | 298 |
| 96 | Burlington city | 297 |
| 97 | Edgewater city | 295 |
| 98 | Yuma city | 294 |
| 99 | Ault town | 291 |
| 100 | Florence city | 282 |
| 101 | Wray city | 277 |
| 102 | Black Forest CDP | 272 |
| 103 | Hudson town | 270 |
| 104 | Silt town | 269 |
| 105 | Palisade town | 242 |
| 106 | Mead town | 236 |
| 107 | Fairmount CDP | 230 |
| 108 | Monument town | 224 |
| 109 | Dove Valley CDP | 216 |
| 110 | Ellicott CDP | 209 |
| 111 | Orchard City town | 205 |
| 112 | The Pinery CDP | 204 |
| 113 | Holly town | 202 |
| 114 | Leadville city | 187 |
| 114 | Meeker town | 187 |
| 115 | Meridian CDP | 186 |
| 116 | Gilcrest town | 181 |
| 117 | Applewood CDP | 180 |
| 118 | Log Lane Village town | 178 |
| 118 | West Pleasant View CDP | 178 |
| 119 | Lone Tree city | 176 |
| 120 | Aetna Estates CDP | 175 |
| 120 | Estes Park town | 175 |
| 121 | La Salle town | 169 |
| 122 | Cedaredge town | 168 |
| 123 | Springfield town | 167 |
| 124 | New Castle town | 163 |
| 125 | Wellington town | 162 |
| 126 | Laporte CDP | 161 |
| 126 | Superior town | 161 |
| 127 | Kersey town | 160 |
| 127 | Todd Creek CDP | 160 |
| 128 | Alamosa East CDP | 155 |
| 129 | Granada town | 152 |
| 130 | Strasburg CDP | 144 |
| 131 | Lincoln Park CDP | 143 |
| 132 | Pagosa Springs town | 141 |
| 133 | Timnath town | 140 |
| 134 | Aspen city | 138 |
| 135 | Bennett town | 133 |
| 135 | Ordway town | 133 |
| 136 | Dotsero CDP | 130 |
| 137 | Del Norte town | 128 |
| 137 | Granby town | 128 |
| 138 | Evergreen CDP | 118 |
| 138 | Redlands CDP | 118 |
| 139 | Breckenridge town | 117 |
| 139 | Buena Vista town | 117 |
| 140 | Park Center CDP | 115 |
| 141 | Aguilar town | 112 |
| 142 | Cherry Creek CDP | 111 |
| 142 | Ignacio town | 111 |
| 143 | Walsh town | 108 |
| 144 | Parachute town | 103 |
| 145 | Ponderosa Park CDP | 102 |
| 146 | Fort Carson CDP | 100 |
| 146 | Genesee CDP | 100 |
| 147 | Holly Hills CDP | 99 |
| 148 | Cattle Creek CDP | 98 |
| 149 | North Washington CDP | 97 |
| 150 | Watkins CDP | 95 |
| 151 | Walden town | 94 |
| 152 | Gleneagle CDP | 92 |
| 152 | San Luis town | 92 |
| 153 | Kremmling town | 91 |
| 154 | Hugo town | 89 |
| 154 | Julesburg town | 89 |
| 155 | Akron town | 88 |
| 156 | Rangely town | 87 |
| 157 | Paonia town | 84 |
| 158 | Keenesburg town | 83 |
| 159 | Penrose CDP | 81 |
| 159 | Towaoc CDP | 81 |
| 160 | Niwot CDP | 79 |
| 160 | Sugar City town | 79 |
| 161 | Severance town | 78 |
| 162 | Arboles CDP | 77 |
| 162 | Greenwood Village city | 77 |
| 163 | Palmer Lake town | 76 |
| 164 | Colorado City CDP | 75 |
| 165 | Flagler town | 74 |
| 165 | Salt Creek CDP | 74 |
| 166 | Mancos town | 73 |
| 167 | Byers CDP | 71 |
| 167 | Roxborough Park CDP | 71 |
| 168 | Eckley town | 69 |
| 168 | Manitou Springs city | 69 |
| 169 | Fort Garland CDP | 68 |
| 169 | Manassa town | 68 |
| 169 | Stonegate CDP | 68 |
| 170 | Empire town | 67 |
| 170 | Naturita town | 67 |
| 170 | Romeo town | 67 |
| 171 | Loma CDP | 66 |
| 171 | Oak Creek town | 66 |
| 172 | Woodmoor CDP | 65 |
| 173 | Georgetown town | 63 |
| 173 | La Jara town | 63 |
| 174 | Simla town | 60 |
| 175 | Cheyenne Wells town | 59 |
| 176 | Blanca town | 58 |
| 176 | Hotchkiss town | 58 |
| 177 | Mountain View town | 57 |
| 177 | Otis town | 57 |
| 178 | Wiggins town | 56 |
| 179 | Antonito town | 54 |
| 179 | Williamsburg town | 54 |
| 180 | Garden City town | 52 |
| 180 | Gunbarrel CDP | 52 |
| 180 | Rockvale town | 52 |
| 181 | Olney Springs town | 50 |
| 182 | Sanford town | 47 |
| 183 | Castle Pines city | 46 |
| 184 | Fraser town | 45 |
| 184 | Idaho Springs city | 45 |
| 185 | Dolores town | 44 |
| 185 | Nucla town | 44 |
| 185 | Sierra Ridge CDP | 44 |
| 186 | Heeney CDP | 42 |
| 187 | Acres Green CDP | 41 |
| 187 | Mountain Village town | 41 |
| 188 | Coaldale CDP | 40 |
| 189 | Poncha Springs town | 39 |
| 190 | Amherst CDP | 38 |
| 190 | Central City city | 38 |
| 191 | Air Force Academy CDP | 37 |
| 191 | Inverness CDP | 37 |
| 192 | Kiowa town | 36 |
| 192 | Stratton town | 36 |
| 193 | Saguache town | 35 |
| 194 | Fowler town | 34 |
| 194 | Nunn town | 34 |
| 195 | Coal Creek town | 32 |
| 195 | De Beque town | 32 |
| 195 | Dillon town | 32 |
| 195 | Vail town | 32 |
| 196 | Elizabeth town | 31 |
| 196 | Norwood town | 31 |
| 197 | Lyons town | 30 |
| 198 | Gunnison city | 29 |
| 198 | Haxtun town | 29 |
| 199 | Basalt town | 28 |
| 199 | Dove Creek town | 28 |
| 199 | Hayden town | 28 |
| 200 | Eldorado Springs CDP | 27 |
| 201 | Beulah Valley CDP | 26 |
| 201 | Limon town | 26 |
| 201 | Manzanola town | 26 |
| 201 | Pierce town | 26 |
| 202 | Atwood CDP | 25 |
| 202 | Crawford town | 25 |
| 202 | Gerrard CDP | 25 |
| 202 | Silver Cliff town | 25 |
| 202 | Starkville town | 25 |
| 203 | Bayfield town | 24 |
| 204 | Blende CDP | 23 |
| 204 | Green Mountain Falls town | 23 |
| 204 | Howard CDP | 23 |
| 204 | Lewis CDP | 23 |
| 205 | Arriba town | 22 |
| 205 | Calhan town | 22 |
| 205 | Cripple Creek city | 22 |
| 205 | Lake City town | 22 |
| 205 | Stepping Stone CDP | 22 |
| 206 | Fleming town | 20 |
| 206 | Jackson Lake CDP | 20 |
| 206 | Ovid town | 20 |
| 206 | Snyder CDP | 20 |
| 206 | Vilas town | 20 |
| 207 | Brookside town | 19 |
| 207 | Collbran town | 19 |
| 207 | Parshall CDP | 19 |
| 207 | Silverton town | 19 |
| 208 | Alpine CDP | 18 |
| 208 | Blue Sky CDP | 18 |
| 209 | Altona CDP | 17 |
| 209 | Blue River town | 17 |
| 209 | Crook town | 17 |
| 209 | Foxfield town | 17 |
| 209 | Iliff town | 17 |
| 209 | Victor city | 17 |
| 209 | Yampa town | 17 |
| 210 | Campo town | 16 |
| 210 | Dinosaur town | 16 |
| 210 | Floyd Hill CDP | 16 |
| 210 | Hot Sulphur Springs town | 16 |
| 210 | Ouray city | 16 |
| 210 | Redvale CDP | 16 |
| 211 | Fairplay town | 15 |
| 211 | Hillrose town | 15 |
| 211 | Meridian Village CDP | 15 |
| 212 | Cherry Hills Village city | 14 |
| 212 | Hasty CDP | 14 |
| 212 | Montezuma town | 14 |
| 212 | Nederland town | 14 |
| 212 | Raymer (New Raymer) town | 14 |
| 212 | Red Cliff town | 14 |
| 213 | Bow Mar town | 13 |
| 213 | Castle Pines Village CDP | 13 |
| 213 | Phippsburg CDP | 13 |
| 214 | Coal Creek CDP | 12 |
| 214 | Copper Mountain CDP | 12 |
| 214 | Grover town | 12 |
| 214 | Larkspur town | 12 |
| 214 | San Acacio CDP | 12 |
| 214 | Southern Ute CDP | 12 |
| 214 | Two Buttes town | 12 |
| 214 | Woodland Park city | 12 |
| 215 | El Moro CDP | 11 |
| 215 | Merino town | 11 |
| 215 | North La Junta CDP | 11 |
| 215 | Pritchett town | 11 |
| 215 | Swink town | 11 |
| 216 | Bethune town | 10 |
| 216 | Deer Trail town | 10 |
| 216 | La Veta town | 10 |
| 216 | Peetz town | 10 |
| 216 | Rye town | 10 |
| 217 | Allenspark CDP | 9 |
| 217 | Cascade-Chipita Park CDP | 9 |
| 217 | Kittredge CDP | 9 |
| 217 | Leadville North CDP | 9 |
| 217 | Weldona CDP | 9 |
| 218 | Boone town | 8 |
| 218 | Downieville-Lawson-Dumont CDP | 8 |
| 218 | Eads town | 8 |
| 218 | Hoehne CDP | 8 |
| 218 | Keystone CDP | 8 |
| 218 | Marble town | 8 |
| 218 | Perry Park CDP | 8 |
| 218 | South Fork town | 8 |
| 219 | Smeltertown CDP | 7 |
| 219 | Westcliffe town | 7 |
| 220 | Cope CDP | 6 |
| 220 | Elbert CDP | 6 |
| 220 | Genoa town | 6 |
| 220 | Jansen CDP | 6 |
| 220 | Kit Carson town | 6 |
| 220 | La Junta Gardens CDP | 6 |
| 220 | Louviers CDP | 6 |
| 220 | Minturn town | 6 |
| 220 | Sedgwick town | 6 |
| 220 | Vona town | 6 |
| 221 | Crested Butte town | 5 |
| 221 | Crowley town | 5 |
| 221 | Marvel CDP | 5 |
| 221 | Morgan Heights CDP | 5 |
| 221 | Morrison town | 5 |
| 221 | Orchard CDP | 5 |
| 222 | Johnson Village CDP | 4 |
| 222 | Moffat town | 4 |
| 222 | Ramah town | 4 |
| 222 | Segundo CDP | 4 |
| 222 | Stonewall Gap CDP | 4 |
| 222 | Valdez CDP | 4 |
| 223 | Cheraw town | 3 |
| 223 | Columbine Valley town | 3 |
| 223 | Grand View Estates CDP | 3 |
| 223 | Haswell town | 3 |
| 223 | Rico town | 3 |
| 223 | Seibert town | 3 |
| 223 | Sterling Ranch CDP | 3 |
| 223 | Wiley town | 3 |
| 224 | Alma town | 2 |
| 224 | City of Creede town | 2 |
| 224 | Hartman town | 2 |
| 224 | Hooper town | 2 |
| 224 | Jamestown town | 2 |
| 224 | Peoria CDP | 2 |
| 224 | Upper Bear Creek CDP | 2 |
| 225 | Joes CDP | 1 |
| 226 | Arapahoe CDP | 0 |
| 226 | Aspen Park CDP | 0 |
| 226 | Avondale CDP | 0 |
| 226 | Bark Ranch CDP | 0 |
| 226 | Black Hawk city | 0 |
| 226 | Blue Valley CDP | 0 |
| 226 | Bonanza town | 0 |
| 226 | Bonanza Mountain Estates CDP | 0 |
| 226 | Brandon CDP | 0 |
| 226 | Branson town | 0 |
| 226 | Brick Center CDP | 0 |
| 226 | Briggsdale CDP | 0 |
| 226 | Brook Forest CDP | 0 |
| 226 | Capulin CDP | 0 |
| 226 | Carbonate town | 0 |
| 226 | Cathedral CDP | 0 |
| 226 | Catherine CDP | 0 |
| 226 | Chacra CDP | 0 |
| 226 | Cokedale town | 0 |
| 226 | Colona CDP | 0 |
| 226 | Comanche Creek CDP | 0 |
| 226 | Conejos CDP | 0 |
| 226 | Cotopaxi CDP | 0 |
| 226 | Crestone town | 0 |
| 226 | Crisman CDP | 0 |
| 226 | Divide CDP | 0 |
| 226 | East Pleasant View CDP | 0 |
| 226 | Echo Hills CDP | 0 |
| 226 | Eldora CDP | 0 |
| 226 | Florissant CDP | 0 |
| 226 | Franktown CDP | 0 |
| 226 | Frisco town | 0 |
| 226 | Fulford CDP | 0 |
| 226 | Gardner CDP | 0 |
| 226 | Garfield CDP | 0 |
| 226 | Glendale CDP | 0 |
| 226 | Goldfield CDP | 0 |
| 226 | Gold Hill CDP | 0 |
| 226 | Grand Lake town | 0 |
| 226 | Guffey CDP | 0 |
| 226 | Hartsel CDP | 0 |
| 226 | Hidden Lake CDP | 0 |
| 226 | Idalia CDP | 0 |
| 226 | Idledale CDP | 0 |
| 226 | Indian Hills CDP | 0 |
| 226 | Kim town | 0 |
| 226 | Kirk CDP | 0 |
| 226 | Laird CDP | 0 |
| 226 | Lakeside town | 0 |
| 226 | Lazear CDP | 0 |
| 226 | Lazy Acres CDP | 0 |
| 226 | Leyner CDP | 0 |
| 226 | Loghill Village CDP | 0 |
| 226 | Lynn CDP | 0 |
| 226 | McClave CDP | 0 |
| 226 | McCoy CDP | 0 |
| 226 | Matheson CDP | 0 |
| 226 | Maybell CDP | 0 |
| 226 | Maysville CDP | 0 |
| 226 | Midland CDP | 0 |
| 226 | Mountain Meadows CDP | 0 |
| 226 | Mount Crested Butte town | 0 |
| 226 | Mulford CDP | 0 |
| 226 | Nathrop CDP | 0 |
| 226 | No Name CDP | 0 |
| 226 | Norrie CDP | 0 |
| 226 | Ophir town | 0 |
| 226 | Padroni CDP | 0 |
| 226 | Paoli town | 0 |
| 226 | Paragon Estates CDP | 0 |
| 226 | Peyton CDP | 0 |
| 226 | Piedra CDP | 0 |
| 226 | Pine Brook Hill CDP | 0 |
| 226 | Pine Valley CDP | 0 |
| 226 | Pitkin town | 0 |
| 226 | Placerville CDP | 0 |
| 226 | Portland CDP | 0 |
| 226 | Red Feather Lakes CDP | 0 |
| 226 | Redstone CDP | 0 |
| 226 | Ridgway town | 0 |
| 226 | Rock Creek Park CDP | 0 |
| 226 | Rollinsville CDP | 0 |
| 226 | Saddle Ridge CDP | 0 |
| 226 | St. Ann Highlands CDP | 0 |
| 226 | St. Mary's CDP | 0 |
| 226 | Sawpit town | 0 |
| 226 | Sedalia CDP | 0 |
| 226 | Seven Hills CDP | 0 |
| 226 | Sheridan Lake town | 0 |
| 226 | Silver Plume town | 0 |
| 226 | Snowmass Village town | 0 |
| 226 | Somerset CDP | 0 |
| 226 | Sugarloaf CDP | 0 |
| 226 | Sunshine CDP | 0 |
| 226 | Tabernash CDP | 0 |
| 226 | Tall Timber CDP | 0 |
| 226 | Telluride town | 0 |
| 226 | Towner CDP | 0 |
| 226 | Trail Side CDP | 0 |
| 226 | Twin Lakes CDP (Lake County) | 0 |
| 226 | Upper Witter Gulch CDP | 0 |
| 226 | Valmont CDP | 0 |
| 226 | Vernon CDP | 0 |
| 226 | Vineland CDP | 0 |
| 226 | Ward town | 0 |
| 226 | Westcreek CDP | 0 |
| 226 | Weston CDP | 0 |
| 226 | Winter Park town | 0 |
| 226 | Wolcott CDP | 0 |
| 226 | Woody Creek CDP | 0 |