Ohio's 12th senatorial district
| Ohio's 12th State Senate district | |||
|---|---|---|---|
| Senator |
| ||
| Demographics | 88% White 6.2% Black 2.3% Hispanic 1% Asian 1.8% Native American 0.3% Hawaiian/Pacific Islander | ||
| Population (2020) • Voting age • Citizens of voting age | 344,252 262,250 257,573 | ||
Ohio's 12th senatorial district has been based in rural western Ohio. It comprises the counties of Allen, Mercer, Shelby, Champaign as well as portions of Auglaize, Darke and Logan counties. It encompasses Ohio House districts 4, 84 and 85. It has a Cook PVI of R+29. Its Ohio Senator is Republican Susan Manchester.