County · Ohio · United States
Seneca County ZIP codes
13 ZIP codes · 13 cities · FIPS 39147
Key facts
- State
- Ohio (OH)
- FIPS code
- 39147
- Population
- 54,861
- Median household income
- $65,020
- Median age
- 40.5
- Land area
- 551 sq mi (1,427.2 km²)
- Population density
- 100 / sq mi
- Area codes
- 419, 567
Cities and ZIP codes in Seneca County (13)
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.