Knox County courts

Filing fees, clerk information, and official court links.

Reviewed Jul 26, 2026 · Official sources
Civil filing fee
$275
New civil suit
E-filing
Not yet verified
Deadline: varies by court
Case records
Search online
Free public case search
Filing typeFee
Civil lawsuit$275
Divorce / family$425

Fees depend on case type and amount; confirm with the court before filing. At $275, the civil filing fee in Knox County is lower than most nearby counties (median $375 across 6 nearby counties).

Clerk & court records

Courthouses in Knox County

GeneralDomestic Relations

Knox County Court of Common Pleas, General Division

Address
111 E. High St., 2nd Floor, Mount Vernon, 43050
ProbateJuvenile

Knox County Court of Common Pleas, Probate and Juvenile Divisions

Address
111 E. High St., Mount Vernon, 43050

Need papers served or filed in Knox County? Nationwide Legal, our partner company, handles process service and court filing here.

Frequently Asked Questions

  • How much does it cost to file a civil case in Knox County?

    The civil filing fee in Knox County, Ohio is $275.00 civil actions/complaints (effective 09/26/2025)

  • How much does it cost to file for divorce or a family case in Knox County?

    $425.00 divorce/legal separation/dissolution (effective 09/26/2025)

  • Can I e-file court documents in Knox County?

    Yes. E-filing is available.

  • Is there a free online case search for Knox County?

    Yes. You can look up cases online at clerkofcourts.co.knox.oh.us.

  • Where do I file court documents in Knox County?

    Filings go to the Knox County Clerk of Courts, located at 117 East High Street, Suite 201, Mount Vernon, OH 43050. You can reach the clerk at (740) 393-6788.

Knox County Court of Common Pleas, OH: (740) 393-6788, Hours & $275 Filing Fee | 1Court