County · Maine · United States
Washington County ZIP codes
31 ZIP codes · 31 cities · FIPS 23029
Key facts
- State
- Maine (ME)
- FIPS code
- 23029
- Population
- 31,261
- Median household income
- $52,237
- Median age
- 48.6
- Land area
- 2,562.7 sq mi (6,637.4 km²)
- Population density
- 12 / sq mi
- Area codes
- 207
Cities and ZIP codes in Washington County (31)
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.