Summit County, Colorado ZIP Codes
- ZIP records
4 - Cities represented
4 - Sum of listed ZIP population estimates
31,352
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 | 80424 | Breckenridge | 9,764 |
| 2 | 80498 | Silverthorne | 8,881 |
| 3 | 80435 | Dillon | 8,715 |
| 4 | 80443 | Frisco | 3,992 |
Cities in Summit County
ZIP Directory
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.