ZIP code · Clark · Colorado · United States

ZIP code 80428 — Clark

ZIP code 80428 serves Clark, Colorado.

Postal code
80428
Single source Value from one source, not cross-checked.
City
Clark
County
Routt FIPS 08107
State
Colorado
Country
United States
Coordinates
40.7268, -106.9215 — precision precise (locality)
View on OpenStreetMap
Population
635 (ZCTA, ACS 5-year)
Population density
3 / sq mi
Land area
204 sq mi (528.4 km²) (ZCTA, ACS 5-year)
Median household income
$103,750
Per-capita income
$73,220
Median age
39.8
Households
238
Housing units
473
Median home value
$723,500
Congressional district
CO-2 (119th Congress)
USDA hardiness zone
5a (-20 to -15 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Denver (UTC−7 / UTC−6 DST)
Area code
970 (from the nearest rate centre)
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 83°F), coldest Jan (avg low 5°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F293445546576838274594330
Avg low °F581827343946443626166
Precip in2.51.91.62.52.61.61.71.82.32.21.92.0

NOAA 1991–2020 climate normals from the nearest station: STEAMBOAT SPRINGS (17.3 mi) · NOAA NCEI

Places in ZIP 80428

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page