Coming Soon · Ohio

Knox County Clerk of Courts

We're building a complete guide to this office — fees, forms, hours, and step-by-step instructions for every service. Check back soon.

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117 East High St. Mt. Vernon, Ohio 43050

📞(740) 393-6788

✉️clerkofcourts@knoxcounty.oh.gov

🌐co.knox.oh.us

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What do you need to do?

Select a service — we'll show you what we have and let you know when the full guide is ready.

Register a Business Name

DBA — "Doing Business As"

Get a Marriage License

Required before your wedding

Get a Birth Certificate

Official copy of your birth record

Get a Death Certificate

Official copy of a death record

Register to Vote

Or update your registration

Get a Document Notarized

Official witness for your signature

Apply for a Passport

First-time application or renewal

Look Up Property Records

Deeds, ownership history, and more

Get a Hunting or Fishing License

Required for ages 16+

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This county is coming soon

We haven't visited Knox County in person yet. Note: marriage licenses in Ohio are issued by the Probate Court, and DBA (trade name) registrations are filed with the County Recorder →