County · Kentucky · United States
Washington County ZIP codes
4 ZIP codes · 4 cities · FIPS 21229
Key facts
- State
- Kentucky (KY)
- FIPS code
- 21229
- Population
- 12,091
- Median household income
- $59,762
- Median age
- 42.2
- Land area
- 297 sq mi (769.2 km²)
- Population density
- 41 / sq mi
- Area codes
- 859
Cities and ZIP codes in Washington County (4)
| City | ZIP codes |
|---|---|
| Mackville | 40040 |
| Saint Catharine | 40061 |
| Springfield | 40069 |
| Willisburg | 40078 |
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.