| Name | Seneca County |
| State | Ohio |
| FIPS Code | 39147 |
| County Seat | Tiffin |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 56,630 |
| Population Growth Rate(2000-2022) | -2.95% |
| Majority Ethnicity | White 96.01% |
| Public School Majority Ethnicity | White 81% |
| Partisan Voting Index | Republican:+14 |
| Unemployment Rate (November 2024) | 4.4% |
| Area Code(s) | 419 / 567 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 96.01% |
| African American | 3.08% |
| Hispanic | 0.3% |
| Asian | 0.61% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 80.73% |
| African American | 1.96% |
| Hispanic | 10.29% |
| Asian | 0.39% |
| Native American | 0.06% |
| Hawaiin/Pacific Islander | 0.17% |