| Business | Phone |
| Canaan Township Trustees 8055 Us Highway 42 S, Plain City 43064 | (614) 873-4512 |
| Canaan Township Trustees 8295 Georgesville Rd, Plain City 43064 | (614) 873-4512 |
| Darby Twp Hall 8270 Cemetery Pike, Plain City 43064 | (614) 873-5618 |
| Jerome Twp Trustees 9799 Industrial Pkwy, Plain City 43064 | (614) 873-4480 |
| Plain City Village Adm 213 S Chillicothe St, Plain City 43064 | (614) 873-5040 |
| Plain City Water Plant 199 Jackson St, Plain City 43064 | (614) 873-5784 |