Mercer 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
| Township of Black Creek | no seat recorded | |
| Township of Butler | no seat recorded | |
| Township of Center | no seat recorded | |
| Township of Dublin | no seat recorded | |
| Township of Franklin | no seat recorded | |
| Township of Gibson | no seat recorded | |
| Township of Granville | no seat recorded | |
| Township of Hopewell | no seat recorded | |
| Township of Jefferson | Celina | |
| Township of Liberty | no seat recorded | |
| Township of Marion | no seat recorded | |
| Township of Recovery | no seat recorded | |
| Township of Union | no seat recorded | |
| Township of Washington | no seat recorded |
Nothing has been written about Mercer 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 Celina as the capital of Mercer County. If that is wrong, tell us what it should be and where you read it.
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