Montgomery County, Ohio Genealogy Records

Listed record inventories

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

• Find Montgomery County's official website

  We haven't checked this county's website yet, so this opens a web search. Look for an address ending in .gov, then find the county recorder, the probate court, the clerk of the court of common pleas and the Ohio History Connection.

• The county recorder

  Deeds, mortgages and other land records.

• The probate court

  Wills, estates and guardianships, marriage licenses, births and deaths registered from 1867 to 1908, and most naturalizations from about 1859 to 1906.

• The clerk of the court of common pleas

  Civil cases, divorces, and naturalizations before about 1859 and after 1906.

• The Ohio History Connection

  In Columbus: state records, death certificates, and county records at its archives and regional network.

• Ohio History Connection Archives & Libraryfree

  The state's historical society archives and library in Columbus, with state and county records and death certificates.

• FamilySearch Catalogfree

  Search by place for "Ohio, Montgomery" to find filmed and digitized records, many viewable free online with a FamilySearch account.

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

Boundaries and parent counties

Formed from: Hamilton County

Check the parent county for earlier records: Hamilton County

Later formed partly from Montgomery County: Miami County, Preble County

Records stay with the county that created them. If your ancestor lived here before 1803, search the parent county. The Atlas of Historical County Boundaries shows each boundary change.