There are 33 cities in Douglas County, Colorado.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Population | 2020 Population | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Aurora | 1 | 397,811 | 386,773 | 0.7% | 2,440 | 163.0 | City |
| Centennial | 2 | 106,445 | 108,196 | -0.41% | 3,530 | 30.2 | City |
| Highlands Ranch | 3 | 102,314 | 107,017 | 0.39% | 4,216 | 24.3 | CDP |
| Castle Rock | 4 | 83,924 | 73,886 | 3.08% | 2,416 | 34.7 | Town |
| Parker | 5 | 64,031 | 58,879 | 2.05% | 2,853 | 22.4 | Town |
| Littleton | 6 | 44,069 | 45,595 | -0.86% | 3,492 | 12.6 | City |
| Englewood | 7 | 34,492 | 33,623 | 0.63% | 5,257 | 6.6 | City |
| Castle Pines | 8 | 15,924 | 11,215 | 7.98% | 1,660 | 9.6 | City |
| Greenwood Village | 9 | 15,057 | 15,649 | -0.97% | 1,822 | 8.3 | City |
| Black Forest | 10 | 14,657 | 13,103 | 0.76% | 146 | 100.6 | CDP |
| Lone Tree | 11 | 13,990 | 14,280 | -0.52% | 1,426 | 9.8 | City |
| The Pinery | 12 | 10,537 | 10,033 | 0.02% | 1,015 | 10.4 | CDP |
| Stonegate | 13 | 9,905 | 9,860 | 0.69% | 5,410 | 1.8 | CDP |
| Roxborough Park | 14 | 9,050 | 9,004 | -0.04% | 980 | 9.2 | CDP |
| Dove Valley | 15 | 5,623 | 4,943 | 0.48% | 1,795 | 3.1 | CDP |
| Meridian | 16 | 5,372 | 4,792 | 3.29% | 2,097 | 2.6 | CDP |
| Castle Pines Village | 17 | 5,206 | 4,558 | 7.7% | 1,169 | 4.5 | CDP |
| Sierra Ridge | 18 | 3,422 | 1,742 | 7.71% | 6,750 | 0.5 | CDP |
| Stepping Stone | 19 | 3,227 | 1,798 | 7.71% | 4,390 | 0.7 | CDP |
| Inverness | 20 | 2,979 | 1,863 | 3.62% | 2,636 | 1.1 | CDP |
| Meridian Village | 21 | 2,916 | 2,840 | 7.72% | 5,718 | 0.5 | CDP |
| Acres Green | 22 | 2,564 | 2,888 | -1.2% | 4,266 | 0.6 | CDP |
| Sterling Ranch | 23 | 2,217 | 521 | 7.73% | 401 | 5.5 | CDP |
| Columbine Valley | 24 | 1,735 | 1,502 | 3.46% | 1,767 | 1.0 | Town |
| Perry Park | 25 | 1,723 | 1,821 | 0.29% | 201 | 8.6 | CDP |
| Grand View Estates | 26 | 831 | 760 | 2.59% | 833 | 1.0 | CDP |
| Foxfield | 27 | 728 | 754 | -0.95% | 550 | 1.3 | Town |
| Franktown | 28 | 344 | 214 | -0.86% | 117 | 2.9 | CDP |
| Westcreek | 29 | 306 | 273 | 4.08% | 252 | 1.2 | CDP |
| Louviers | 30 | 266 | 381 | 0% | 168 | 1.6 | CDP |
| Larkspur | 31 | 222 | 208 | 1.37% | 140 | 1.6 | Town |
| Elbert | 32 | 198 | 220 | -1.49% | 418 | 0.5 | CDP |
| Sedalia | 33 | 10 | 103 | -58.33% | 7 | 1.4 | CDP |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Aurora is the largest city in Douglas County.
Sedalia is the smallest city in Douglas County.
There are 33 cities in Douglas County, Colorado.