Seneca County is a district of Ohio.
Boundaries: United States Census Bureau, MAF/TIGER Database (https://www.census.gov/geographies/mapping-files/time-series/geo/carto-boundary-file.html) via geoBoundaries, public domain
| City of Fostoria | no seat recorded | 13 k |
| City of Tiffin | Tiffin | 18 k |
| Township of Adams | no seat recorded | |
| Township of Big Spring | no seat recorded | |
| Township of Bloom | no seat recorded | |
| Township of Clinton | no seat recorded | |
| Township of Eden | no seat recorded | |
| Township of Hopewell | no seat recorded | |
| Township of Jackson | no seat recorded | |
| Township of Liberty | no seat recorded | |
| Township of Loudon | no seat recorded | |
| Township of Pleasant | no seat recorded | |
| Township of Reed | no seat recorded | |
| Township of Scipio | no seat recorded | |
| Township of Seneca | no seat recorded | |
| Township of Thompson | no seat recorded | |
| Township of Venice | no seat recorded |
Nothing has been written about Seneca County here, and neither Wikipedia nor Wikivoyage has an article we could draw one from. If you know the place, that makes you a better source than anything we have. Tell us what is worth knowing and where you got it.
We show Tiffin as the capital of Seneca County. If that is wrong, tell us what it should be and where you read it.
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