Jefferson County, Colorado ZIP Codes
- ZIP records
27 - Cities represented
13 - Sum of listed ZIP population estimates
600,818
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 80123 | Littleton | 44,549 |
| 2 | 80401 | Golden | 43,811 |
| 3 | 80127 | Littleton | 43,494 |
| 4 | 80128 | Littleton | 36,712 |
| 5 | 80021 | Broomfield | 36,555 |
| 6 | 80003 | Arvada | 35,976 |
| 7 | 80228 | Denver | 34,942 |
| 8 | 80227 | Denver | 34,907 |
| 9 | 80004 | Arvada | 33,700 |
| 10 | 80226 | Denver | 31,573 |
Cities in Jefferson County
- Arvada
- Broomfield
- Buffalo Creek
- Conifer
- Denver
- Golden
- Idledale
- Indian Hills
- Kittredge
- Littleton
- Morrison
- Pine
- Wheat Ridge
ZIP Directory
- ZIP 80002
- ZIP 80003
- ZIP 80004
- ZIP 80005
- ZIP 80007
- ZIP 80021
- ZIP 80033
- ZIP 80123
- ZIP 80127
- ZIP 80128
- ZIP 80214
- ZIP 80215
- ZIP 80226
- ZIP 80227
- ZIP 80228
- ZIP 80232
- ZIP 80235
- ZIP 80401
- ZIP 80403
- ZIP 80419
- ZIP 80425
- ZIP 80433
- ZIP 80453
- ZIP 80454
- ZIP 80457
- ZIP 80465
- ZIP 80470
Browse all ZIP data for Colorado
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.