Summit County, CO ZIP Codes
4 ZIP codes cover all or part of Summit County, Colorado: 80424, 80498, 80435 and 80443. The Census Bureau counts 31,017 residents in the county, with a median household income of $109,773 and a median home value of $939,900. Median household income ranges from $97,463 in 80435 to $120,907 in 80424. Its largest communities include Breckenridge, Silverthorne, Frisco, Blue River and Keystone.
Summit County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 31,017 |
| Households | 12,545 |
| Median household income | $109,773 |
| Median home value | $939,900 |
| Median age | 39.5 |
| Median rent | $1,928 |
All 4 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 31,352 |
| Households (sum of ZIP codes) | 12,659 |
| Median household income, range across ZIP codes | $97,463 (80435) to $120,907 (80424) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $108,828 |
| Homeowners | 72.3% |
| Households with kids under 18 | 17.5% |
| Moved in the past year | 15.7% |
| Carrier routes in EDDM2GO's route library | 6 routes, 4,041 homes (3 of 4 ZIP codes) |
Top facts
- Highest median household income in Summit County: 80424 ($120,907)
- Most residents: 80424 (9,764 people)
- Highest homeownership: 80424 (78.1% own their home)
- Most households with kids: 80435 (21.6% of households)
- Most new movers: 80435 (19.0% moved in last year)
- Youngest median age: 80435 (35.6 years)
- Highest median home value: 80424 ($1,034,600)
Every ZIP code in Summit County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 80424 | Breckenridge | 9,764 | 3,991 | $120,907 | $1,034,600 | 78.1% | 13.2% | 14.4% | 1 | 689 | 100% of its land |
| 80498 | Silverthorne | 8,881 | 3,639 | $105,897 | $824,200 | 73.8% | 19.2% | 14.0% | 3 | 1,626 | 94% of its land |
| 80435 | Dillon | 8,715 | 3,285 | $97,463 | $941,600 | 61.6% | 21.6% | 19.0% | 2 | 1,797 | 100% of its land |
| 80443 | Frisco | 3,992 | 1,744 | $108,710 | $909,000 | 76.2% | 16.3% | 15.4% | — | — | 100% of its land |
A ZIP code is listed for Summit County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Breckenridge — 4,959 residents · 1 ZIP code
- Silverthorne — 4,815 residents · 1 ZIP code
- Frisco — 2,825 residents · 1 ZIP code
- Blue River — 1,410 residents · 1 ZIP code
- Keystone — 1,216 residents · 1 ZIP code
- Dillon — 832 residents · 1 ZIP code
- Copper Mountain — 353 residents · 1 ZIP code
- Montezuma — 120 residents · 1 ZIP code
- Heeney — 63 residents · 1 ZIP code
Price a mailing to Summit County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Summit County, CO?
- 80424, 80498, 80435 and 80443. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Summit County?
- 31,017 residents in 12,545 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Summit County?
- $109,773 for the county as a whole. Its ZIP codes range from $97,463 (80435) to $120,907 (80424).
- Which Summit County ZIP code has the highest median household income?
- 80424, at $120,907, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Summit County?
- For the 3 of 4 ZIP codes in EDDM2GO's stored route library: 6 carrier routes reaching 4,041 residential and 71 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.