County · Colorado · United States
Washington County ZIP codes
6 ZIP codes · 6 cities · FIPS 08121
Key facts
- State
- Colorado (CO)
- FIPS code
- 08121
- Population
- 4,839
- Median household income
- $65,164
- Median age
- 41.2
- Land area
- 2,518.1 sq mi (6,521.8 km²)
- Population density
- 2 / sq mi
- Area codes
- 970
Cities and ZIP codes in Washington County (6)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.