Zip Code | City | Population |
|---|---|---|
| 80123 | Littleton | 45,388 |
| 80127 | Littleton | 44,235 |
| 80401 | Golden | 42,777 |
| 80128 | Littleton | 37,061 |
| 80003 | Arvada | 36,233 |
| 80004 | Arvada | 35,349 |
| 80227 | Denver | 35,187 |
| 80021 | Broomfield | 35,128 |
| 80228 | Denver | 34,813 |
| 80226 | Denver | 32,063 |
| 80005 | Arvada | 29,155 |
| 80033 | Wheat Ridge | 27,384 |
| 80214 | Denver | 26,634 |
| 80232 | Denver | 22,707 |
| 80403 | Golden | 20,809 |
| 80002 | Arvada | 20,589 |
| 80215 | Denver | 19,143 |
| 80007 | Arvada | 17,641 |
| 80465 | Morrison | 15,783 |
| 80235 | Denver | 8,593 |
| 80433 | Conifer | 8,386 |
| 80470 | Pine | 3,898 |
| 80454 | Indian Hills | 1,430 |
| 80457 | Kittredge | 430 |
| 80425 | Buffalo Creek | 329 |
| 80453 | Idledale | 329 |
| 80419 | Golden | 0 |