What city is ZIP code 80435?

ZIP code 80435 is in Keystone, CO (Summit County).

What county is ZIP code 80435 in?

ZIP code 80435 is mostly in Summit County, Colorado.

How many people live in ZIP code 80435?

About 8,715 people live in the 80435 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 80435

Keystone, CO, Summit County

Population

8,715

Land area

104sq mi

People per sq mi

City

Keystone

ZIP 80435 and nearby ZIP codes

Full map

ZIP 80435 at a glance

ZIP 80435 (Keystone) is 48% denser than Colorado as a whole.
The median household income is $97,463, close to the Colorado median.
A typical owner-occupied home is valued at $941,600 (75% above Colorado) and median rent is $1,897 a month.

Local data for ZIP 80435

Counts from official public data

Housing and community stats

ZIP 80435, American Community Survey 2020-2024

Full profile

Median household income

$97,463

Poverty rate

10.5%

Median home value

$941,600

Prices -5.3% in a year

Median rent

$1,897/mo

Homeownership

61.6%

Bachelor's or higher

55.5%

Median age

35.6

Average commute

21.7 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

459

ZIP Business Patterns 2023

Employees

5,245

$192M annual payroll

PPP loans

$27M

339 loans

Campaign donations

$34.4K

19% D, 30% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 80435, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Low

Top: avalanche

Storm events since 1996

554

Countywide, mostly winter weather

Flood insurance policies

145

0.9% of homes, county

July high / Jan low

75° / 2°F

14.9 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 80435, CDC PLACES estimates

All 40 measures

Obesity

26.0%

U.S. 33.3% -7.3 pts

Diabetes

7.6%

U.S. 12.1% -4.5 pts

Smoking

11.5%

U.S. 12.8% -1.3 pts

Uninsured (18-64)

12.0%

U.S. 11.1% +0.9 pts

Frequently asked questions

What city is ZIP code 80435?: ZIP code 80435 is in Keystone, CO (Summit County).
What county is ZIP code 80435 in?: ZIP code 80435 is mostly in Summit County, Colorado.
How many people live in ZIP code 80435?: About 8,715 people live in the 80435 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.