SENECA COUNTY
County seat: Tiffin
The courthouse is at 103 East Market St. in Tiffin. It houses the city of Tiffin's Municipal Court, Clerk of the Courts, Common Pleas Court, and Probation Department.
Court of common pleas
Municipal courts
Free civil legal help
Which legal aid program covers an address in Seneca County is answered by Alliance of Ohio Legal Aids, in the directory with the other statewide offices.
Read off Supreme Court of Ohio, Find Ohio Trial Courts & Local Rules and Supreme Court of Ohio, Ohio Courthouses on 13 October 2026. A list, not a referral: which court hears a case is set by statute and by each court’s own rules.