Summit County, Colorado ZIP codes
5 ZIP codes are in Summit County. It's part of the Breckenridge, CO micro area.
- ZIP codes
- 5
- Population in these ZIPs
- 31,352
- Avg. median income
- $108,600population-weighted
- Cities & towns
- 4
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ZIP codes in Summit County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 80424 | Breckenridge | 9,764 | $120,907 | $1,182,300 |
| 80435 | Dillon | 8,715 | $97,463 | $821,500 |
| 80443 | Frisco | 3,992 | $108,710 | $962,100 |
| 80497 PO Box | Silverthorne | — | — | — |
| 80498 | Silverthorne | 8,881 | $105,897 | $870,400 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Summit County
Nearby counties
Frequently asked questions
How many ZIP codes are in Summit County, Colorado?
5 ZIP codes are mainly in Summit County.
What cities are in Summit County?
ZIP codes in Summit County use the city names Breckenridge, Dillon, Frisco and Silverthorne.
What metro area is Summit County in?
Summit County is part of the Breckenridge, CO micropolitan statistical area.