There are 27 zip codes in Jefferson County, Colorado. The most populated is 80123, located in Littleton. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | Population | City |
|---|---|---|
| 80123 | 45,388 | Littleton |
| 80127 | 44,235 | Littleton |
| 80401 | 42,777 | Golden |
| 80128 | 37,061 | Littleton |
| 80003 | 36,233 | Arvada |
| 80004 | 35,349 | Arvada |
| 80227 | 35,187 | Denver |
| 80021 | 35,128 | Broomfield |
| 80228 | 34,813 | Denver |
| 80226 | 32,063 | Denver |
| 80005 | 29,155 | Arvada |
| 80033 | 27,384 | Wheat Ridge |
| 80214 | 26,634 | Denver |
| 80232 | 22,707 | Denver |
| 80403 | 20,809 | Golden |
| 80002 | 20,589 | Arvada |
| 80215 | 19,143 | Denver |
| 80007 | 17,641 | Arvada |
| 80465 | 15,783 | Morrison |
| 80235 | 8,593 | Denver |
| 80433 | 8,386 | Conifer |
| 80470 | 3,898 | Pine |
| 80454 | 1,430 | Indian Hills |
| 80457 | 430 | Kittredge |
| 80425 | 329 | Buffalo Creek |
| 80453 | 329 | Idledale |
| 80419 | 0 | Golden |