County Research Guide

Hardin County, Ohio

Created February 12, 1820 from former treaty land and organized March 1, 1833 · county seat Kenton. Repository addresses, online record links, and a free printable record checklist below.

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Hardin County, Ohio Genealogy & History

Short episodes that walk through Hardin County's records, one record type at a time.

Formation · Settlers & Migration · Probate · Land · Tax · Churches · Newspapers · Where to Look

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Where the records are

Hardin County Probate Court

One Courthouse Square, Suite 200, Kenton, OH 43326 · (419) 674-2230

hardincountyprobatecourt.com

Wills, estates, guardianships, adoptions, marriage licenses, and birth/death records from 1867 through December 19, 1908.

Hardin County Recorder

One Courthouse Square, Suite 220, Kenton, OH 43326 · (419) 674-2252

hardincountyohio.gov/recorder

Deeds, mortgages, and liens.

Hardin County Clerk of Courts (Court of Common Pleas)

One Public Square, Suite 310, Kenton, OH 43326 · (419) 674-2278

hardincourts.com/CLSite

Divorces, civil suits (including partition suits that divide land among heirs), and Common Pleas journals. Before 1852, this court also handled wills and estates.

Hardin County Auditor

One Courthouse Square, Suite 250, Kenton, OH 43326 · (419) 674-2239

co.hardin.oh.us

Current tax lists and property transfer records. Early tax duplicates are on FamilySearch and at the Ohio History Connection.

Mary Lou Johnson Hardin County District Library

mljlibrary.org/reference-research/genealogy

In-library-use newspaper microfilm for multiple historic Kenton titles, Hardin County census 1820–1930, city/county directories 1908–1999, and Ohio Northern University yearbooks.

Hardin County Genealogy Society — Robert Reed Genealogy Library

211 W. Franklin St., Kenton, OH · PO Box 520, Kenton, OH 43326 · (419) 674-4088

hardincountygenealogy.com · Wed–Thu 1–5pm

A separate, dedicated location from the public library, donated in 2003. Organized as an OGS chapter since 1982.

Hardin County Historical Museums, Inc.

223 N. Main St., Kenton, OH 43326 · (419) 673-7147

hardinmuseums.org · Fri–Sun 10–4

A separate organization from the Genealogy Society above — an artifact museum including the Jacob Parrott Medal of Honor exhibit and a Civil War room.

Kenton Hardin Health Department

175 W. Franklin St., Suite 120, Kenton, OH 43326 · (419) 673-6230

hardinhealth.org/vital-statistics-2

Records from 1909 forward. Records before that: Probate Court or the Genealogy Society above.

Cemetery records

Find A Grave — Hardin County. WPA-era cemetery plat maps are at the Hardin County Tax Map/Engineer's Office.

Not sure which office has what? See Which County Office Holds What.

Before Hardin County existed

Hardin County was formed in 1820 from Logan County. For records made before then, search the parent county:

Land: Virginia Military District

Part of Hardin County lies in the Virginia Military District, land Virginia set aside for its Revolutionary War veterans. It was surveyed in irregular metes and bounds, and the first owners' records follow a warrant, entry, survey, and patent trail.

Other parts of the county were federal Congress Lands or smaller special tracts. Where land was sold by the federal government, the first purchase appears as a federal patent.

More for Hardin County

Newspapers of Hardin County

Titles that covered Hardin County, historic and current, with where to search each one. Not every historic title has been digitized — several survive only on microfilm.

TitleYearsWhere to Search
Hardin County Republican1853-1911Chronicling America (LOC, digitized)
The News-Republican1896-1938Chronicling America (loc.gov)
Kenton Graphic-News-RepublicanEarly-mid 1900sOhio Memory (ohiomemory.org)
The Kenton Times1953-presentChronicling America (1953+); current at kentontimes.com
Kenton Daily Democrat1880s-1930sMicrofilm only — Mary Lou Johnson Hardin County District Library
Kenton Weekly Republican1860s-1890sMicrofilm only — Mary Lou Johnson Hardin County District Library
Kenton Daily News / Kenton Press1900s-1950sMicrofilm only — Mary Lou Johnson Hardin County District Library

Download the Newspaper Research Log (PDF)

Printable Record Checklist

Fill in what you're looking for, print it, and take it with you to the courthouse or library.

Brick Walls & Buckeyes emblem Brick Walls & Buckeyes brickwallsbuckeyes.com · Hardin County, Ohio

Vital & Probate

Birth record (Health Dept 1909+, or Probate 1867–1908)
Death record (Health Dept 1909+, or Probate 1867–1908)
Marriage record (Probate Court)
Will / estate administration file
Guardianship record
Divorce or court case (Clerk of Courts)

Land & Property

Deed / land transfer (Recorder's Office)
Mortgage record
WPA cemetery plat map (Tax Map Office)
Tax duplicate
First land purchase or patent (BLM GLO or county deeds)

Community & Print

Newspaper mention (Kenton Times)
City directory (library, 1908–1999)
Cemetery record / headstone photo
Museum artifact record (Historical Museums)
Census record (1820–1930, library)

Addresses and links last checked October 2026.

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