Fairfield County, Ohio Genealogy Records

Selected record inventories for Fairfield 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
1800
County seat
Lancaster
Adams CountyAthens CountyBrown CountyChampaign CountyClark CountyClinton CountyCoshocton CountyDelaware CountyFayette CountyFranklin CountyGallia CountyGreene CountyHighland CountyHocking CountyJackson CountyKnox CountyLicking CountyLogan CountyMadison CountyMeigs CountyMorgan CountyMuskingum CountyPerry CountyPickaway CountyPike CountyScioto CountyUnion CountyVinton CountyRoss CountyWashington CountyFairfield CountyAthensBrownChampaignClarkClintonFayetteFranklinGreeneHighlandJacksonLickingMadisonMeigsMorganPerryPickawayPikeVintonRossFairfield
Fairfield CountyParent counties (search here for earlier records)Today's boundaries · U.S. Census Bureau

Listed record inventories

Selected holdings and indexes for Fairfield 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

Cemeteries and burial

County government

Deeds and land

Wills and estates

Tax records

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: Ross County, Washington County

Check the parent counties for earlier records: Ross County, Washington County

Later formed partly from Fairfield County: Hocking County, Knox County, Licking County, Muskingum County, Perry County, Pickaway County

AdamsKnox (Ind.)TrumbullClermontJeffersonHamiltonWayne (Northwest Territory, extinct)Indiana TerritoryRossWashingtonFairfieldFairfieldRossWashingtonAdamsTrumbullHamilton
Fairfield as created in 1800Where 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 1800, 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.