Harrison County, Ohio Genealogy Records

Selected record inventories for Harrison County, their listed years, and where to ask for access.

Selected inventory review: 2026-11-02. Selected catalog metadata extracted from the linked sources. This is not an examination of original records, a complete county holdings audit, or certification of current access. Historical sources are identified in the access note. Ohio Genealogical Society 2012 inventory

Formed
1813
County seat
Cadiz
Ashland CountyBelmont CountyCarroll CountyColumbiana CountyCoshocton CountyGuernsey CountyHocking CountyHolmes CountyKnox CountyLicking CountyLorain CountyMahoning CountyMedina CountyMonroe CountyMorgan CountyMuskingum CountyNoble CountyPerry CountyPortage CountyStark CountySummit CountyTrumbull CountyWayne CountyJefferson CountyTuscarawas CountyHarrison CountyAshlandBelmontCarrollColumbianaCoshoctonGuernseyHolmesKnoxLickingMahoningMonroeMuskingumNoblePerryStarkWayneJeffersonTuscarawasHarrison
Harrison CountyParent counties (search here for earlier records)Today's boundaries · U.S. Census Bureau

Listed record inventories

Selected holdings and indexes for Harrison County, checked against the repository descriptions linked below. Date spans may contain gaps; an index is not a complete set of original records.

Marriages, births and deaths

Deeds and land

Tax records

Wills and estates

See the repository's descriptions and search options

Repository access note: Selected microfilm holdings from the Ohio Genealogical Society’s published 2012 inventory. This is a historical inventory: confirm that the film is still available, along with current visit, copying and access conditions, before relying on it. These are holdings at the society, not a complete county courthouse inventory. Census spans do not imply that every census survives; the 1890 population census is largely lost. Some original catalog titles contain historical terminology.

Sources: the catalogs and repository descriptions linked on the entries above. Selected inventories do not establish complete coverage of every record type or online access to original documents. Read the repository access note for source dates and limitations.

Where to find the records

Offices change their hours and access rules; call before you visit.

Boundaries and parent counties

Formed from: Jefferson County, Tuscarawas County

Check the parent counties for earlier records: Jefferson County, Tuscarawas County

Later formed partly from Harrison County: Carroll County

StarkColumbianaWayneCoshoctonFairfieldMuskingumTrumbullHuronPortageMedinaBelmontGuernseyMonroeWashingtonJeffersonTuscarawasHarrisonHarrisonTuscarawasStarkColumbianaWayneCoshoctonMuskingumBelmontGuernsey
Harrison as created in 1813Where its land was the day beforeToday's boundaryBoundaries: Newberry Library, Atlas of Historical County Boundaries

Records stay with the county that created them. If your ancestor lived here before 1813, search the parent county. The Atlas of Historical County Boundaries shows each boundary change.

Research tip

Ohio's probate courts registered births and deaths from 1867 until statewide registration began in 1908, so for those years ask the probate court of the county.