ZIP code · Boulder · Colorado · United States
ZIP code 80303 — Boulder
ZIP code 80303 serves Boulder, Colorado.
- Postal code
- 80303Single source Value from one source, not cross-checked.
- City
- Boulder
- County
- Boulder
- State
- Colorado
- Country
- United States
- Coordinates
- 39.9914, -105.2392 — precision precise (locality)
View on OpenStreetMap - Population
- 24,934 (ZCTA, ACS 5-year)
- Median household income
- $77,344
- Median age
- 29.8
- Time zone
- America/Denver (UTC−7 / UTC−6 DST)
Nearby localities
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). Data generated on 2026-08-21. Methodology · Report an error on this page