Seneca County, Ohio
Seneca County | |
|---|---|
Seneca County Justice Center in Tiffin, Ohio | |
Location within the U.S. state of Ohio | |
Ohio's location within the U.S. | |
| Coordinates: 41°08′N 83°08′W / 41.13°N 83.13°W | |
| Country | United States |
| State | Ohio |
| Founded | April 1, 1824 |
| Named after | the Seneca nation |
| Seat | Tiffin |
| Largest city | Tiffin |
| Area | |
• Total | 553 sq mi (1,430 km2) |
| • Land | 551 sq mi (1,430 km2) |
| • Water | 1.8 sq mi (5 km2) 0.3% |
| Population (2020) | |
• Total | 55,069 |
| • Density | 100/sq mi (40/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional district | 5th |
| Website | senecacountyohio |
Seneca County is a county located in the northwestern part of the U.S. state of Ohio. As of the 2020 census, the population was 55,069. Its county seat is Tiffin. The county was created in 1820 and organized in 1824. It is named for the Seneca Indians, the westernmost nation of the Iroquois Confederacy. This people were based in present-day New York but had territory extending into Pennsylvania and Ohio. Seneca County comprises the Tiffin, OH Micropolitan Statistical Area, which is also included in the Findlay–Tiffin, OH Combined Statistical Area.