| 1 | Sedalia CDP (south-southeast 2) | 13,215 |
| 2 | Castle Rock town (north-northeast) | 12,714 |
| 3 | Sierra Ridge CDP (north-northwest) | 10,727 |
| 4 | Parker town (north) | 8,355 |
| 5 | Parker town (south) | 8,106 |
| 6 | Larkspur town (east-northeast) | 7,937 |
| 7 | Franktown CDP (north-northeast) | 7,612 |
| 8 | Castle Rock town (east-southeast) | 7,456 |
| 9 | Sedalia CDP (south-southeast 1) | 7,364 |
| 10 | Stepping Stone CDP (north-northeast) | 7,245 |
| 11 | Parker town (southeast) | 7,148 |
| 12 | Sierra Ridge CDP (south-southeast) | 7,056 |
| 13 | Stepping Stone CDP (southeast) | 6,944 |
| 14 | Sedalia CDP (northwest 2) | 6,911 |
| 15 | Stonegate CDP (south-southeast) | 6,647 |
| 16 | Castle Pines city (north-northwest 2) | 6,532 |
| 17 | Roxborough Park CDP (south-southwest) | 6,320 |
| 18 | Parker town (southwest) | 6,277 |
| 19 | Sedalia CDP (northwest 3) | 6,273 |
| 20 | Highlands Ranch CDP (southwest) | 6,242 |
| 21 | Castle Rock town (south-southwest) | 6,182 |
| 22 | Sedalia CDP (north) | 6,158 |
| 23 | Stepping Stone CDP (northwest) | 6,107 |
| 24 | Castle Rock town (northwest) | 6,098 |
| 25 | Highlands Ranch CDP (southeast) | 6,027 |
| 26 | Sedalia CDP (southwest) | 6,011 |
| 27 | Meridian CDP (north-northeast) | 5,557 |
| 28 | Castle Rock town (southwest) | 5,527 |
| 29 | Lone Tree city (southwest) | 5,450 |
| 30 | Lone Tree city (east-northeast) | 5,422 |
| 31 | Sedalia CDP (northeast) | 5,380 |
| 32 | Sedalia CDP (northwest 1) | 5,305 |
| 33 | Castle Pines city (north-northwest 1) | 5,210 |
| 34 | Highlands Ranch CDP (northeast) | 5,124 |
| 35 | Parker town (west 1) | 4,931 |
| 36 | Parker town (west 2) | 4,928 |
| 37 | Highlands Ranch CDP (west 2) | 4,889 |
| 38 | Highlands Ranch CDP (north 2) | 4,845 |
| 39 | Stonegate CDP (west-southwest) | 4,777 |
| 40 | Parker town (northwest) | 4,758 |
| 41 | Franktown CDP (west-northwest) | 4,496 |
| 42 | Castle Pines Village CDP (southeast) | 4,437 |
| 43 | Sedalia CDP (north-northeast 2) | 4,407 |
| 44 | The Pinery CDP (northeast) | 4,405 |
| 45 | Perry Park CDP (northeast) | 4,237 |
| 46 | Lone Tree city (northwest) | 4,195 |
| 47 | Stonegate CDP (north-northeast) | 4,111 |
| 48 | Meridian CDP (south-southwest) | 4,053 |
| 49 | Highlands Ranch CDP (north 1) | 4,027 |
| 50 | Sedalia CDP (south) | 3,893 |
| 51 | Acres Green CDP (west) | 3,838 |
| 52 | Sedalia CDP (north-northeast 1) | 3,726 |
| 53 | Highlands Ranch CDP (east-southeast) | 3,612 |
| 54 | Louviers CDP (southeast) | 3,611 |
| 55 | Acres Green CDP (southwest) | 3,486 |
| 56 | Parker town (east-northeast) | 3,414 |
| 57 | Acres Green CDP (east) | 3,326 |
| 58 | Highlands Ranch CDP (west-southwest) | 3,235 |
| 59 | Acres Green CDP (south-southeast) | 3,092 |
| 60 | Highlands Ranch CDP (east) | 3,047 |
| 61 | The Pinery CDP (southwest) | 2,964 |
| 62 | Acres Green CDP (north) | 2,892 |
| 63 | Castle Pines city (south-southeast) | 2,794 |
| 64 | Larkspur town (west-southwest) | 2,659 |
| 65 | Franktown CDP (south) | 2,580 |
| 66 | Perry Park CDP (southwest) | 2,557 |
| 67 | Roxborough Park CDP (north-northeast) | 2,103 |
| 68 | Highlands Ranch CDP (west 1) | 2,070 |
| 69 | Castle Pines Village CDP (northwest) | 1,957 |
| 70 | Louviers CDP (north-northwest) | 1,358 |
| 71 | Louviers CDP (south-southeast) | 984 |
| 72 | Westcreek CDP | 950 |