Ohio Research Guides

Ohio Genealogy Records: Start Here

Where to find births, deaths, marriages, wills, land, census, military, and newspaper records in Ohio, and the dates that decide which office has them.

Ohio records are split among county offices, state agencies, and private archives, and the split changes by date. Find your ancestor's record type in the table, then follow the link for your county.

Quick finder: what you need and where to look first

RecordWhere to start
Births and deaths, 1867–Dec. 19, 1908County Probate Court. There is no statewide index for these years, so you search county by county.
Births, Dec. 20, 1908 to todayOhio Department of Health, Vital Statistics, or the local health department.
Deaths, Dec. 20, 1908–1970Ohio History Connection (state death certificates). Indexes are on FamilySearch (1908–1953) and at the Ohio History Connection. How to read and order one.
Deaths, 1971 to todayOhio Department of Health, or the local health department. Certified copies of any year come from the county health department.
MarriagesCounty Probate Court. Marriage records are also indexed on FamilySearch.
Wills and estatesCounty Probate Court after 1852. Before 1852, the Court of Common Pleas handled them.
Deeds and mortgagesCounty Recorder. First purchases from the federal government are in the BLM General Land Office records.
Divorces and civil suitsClerk of Courts (Court of Common Pleas).
Property tax recordsCounty Auditor, the Ohio History Connection, and FamilySearch.
CensusFamilySearch, Ancestry, and other census indexes (see the census notes below).
NewspapersOhio Memory, Chronicling America, and your county's library. Each county guide lists local titles.

Not sure which office is which? Read Which County Office Holds What, then open your county in the County Index.

Key dates every Ohio researcher should know

Because county boundaries changed through the 1800s, your ancestor's county may not have existed when the record was made. Check each county guide's "Before this county existed" box for parent counties.

Census notes for Ohio

Land records: why Ohio is different

Ohio land was divided into many survey systems: Congress Lands, the Virginia Military District, the Connecticut Western Reserve, the Ohio Company Purchase, and others. Which system your ancestor's land falls under decides where the first purchase record sits. Start with our Ohio Land Survey Districts map and guide, then search the BLM General Land Office Records for original federal patents.

State-level repositories

Ohio History Connection — Archives & Library

800 E. 17th Avenue, Columbus, OH 43211 · (614) 297-2510

ohiohistory.org/learn/archives-library

State death certificates (1908–1970), government records, manuscripts, newspapers on microfilm, and research guides. Register for a free Archives & Library card, and check current hours and appointment rules before you travel, since services have changed recently.

Ohio Genealogical Society — Library

611 State Route 97 West, Bellville, OH 44813 · (419) 886-1903

ogs.org

The largest state genealogical society in the United States. Its library holds family files, periodicals, and manuscripts, and its website has a database search, a cemetery search, digitized books, and a copy service.

Ohio Department of Health — Vital Statistics

odh.ohio.gov

Birth certificates from December 20, 1908 and death certificates from 1971 forward. Local health departments can often supply the same records faster.

Free online starting points

Next steps

Dates and offices checked October 2026. Confirm hours, fees, and access rules with each office before you visit.

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