Mahoning County, Ohio Genealogy

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Online Records

Coordinates: 41.02°0′N 80.77°0′W / 41.02°N 80.77°W / 41.02; -80.77

Mahoning County, Ohio
Map of Ohio highlighting Mahoning County
Location in the state of Ohio
Map of the U.S. highlighting Ohio
Location of Ohio in the U.S.
Mahoning County Courthouse.jpg
Address Mahoning County Courthouse
120 Market St
Youngstown, Ohio 44503
Mahoning County Website
Phone: 330–740–2104
United StatesGotoarrow.png Ohio Gotoarrow.png Mahoning County

Historical Facts

Beginning dates for major county records
*For earlier dates, try... Church | Obituaries | Cemeteries

Boundary Changes

See an interactive map of Mahoning County boundary changes

Record Loss


Bible Records


Business Records and Commerce


Cemetery records often reveal birth, death, relationship, military, and religious information.

Finding More Cemetery Records

Additional cemetery records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Cemetery Records in online catalogs like:


Church Records

  • Mahoning Chapter Daughters of the American Revolution, Youngstown, Ohio, Court, Church and Family Records of Mahoning and Columbiana Counties of Ohio FHL film 859777 item 7

Society of Friends

===== Finding More Church Records =====

Additional church records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Church Records in online catalogs like:

Court Records

See Ohio Court Records for more information about using these records.

The following abstracts and copies of original records may be accessed through the Family History Library.

Emigration and Immigration

Ethnic, Political, or Religious Groups




Local History

Land and Property

Original land records are held in the office of the Mahoning County Auditor. See Ohio Land and Property for more information about using land records in Ohio.

The following abstracts and copies of original records may be accessed through online sources and the Family History Library.

Copies of Original Records

Additional Resources

Additional resources for Mahoning County land and property may be found in the FHLC and FHLC–maps. Copies of records on FHL microfilm and microfiche can be ordered for viewing at Family History Centers. Copies of books found in the FHLC may be found in WorldCat catalog and ordered from your local library through interlibrary loan. Explore how to search the Family History Library Catalog and the Worldcat Online Catalog.

Online Resources

Finding More Land Records

Additional land records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Land and Property Records in online catalogs like:



Civil War

Civil War service men from Mahoning County served in various regiments. Men often joined a company (within a regiment) that originated in their county. Listed below are companies that were specifically formed in Mahoning County.

- 41st Regiment, Ohio Infantry, Company F
- 105th Regiment, Ohio Infantry, Companies A and H

Naturalization and Citizenship


See the Ohio Historical Society Newspaper Project for available newspapers and their years of publication.  Click on the newspaper name to display available dates of publication and the Ohio Historical Society film number. All microfilmed newspapers are available thorugh inter-library loan. The staff does not do newspaper searches. 




Finding More Probate Records

Additional probate records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Probate Records in online catalogs like:

Public Records



Mahoning County Courthouse
120 Market Street
Youngstown, OH 44503
Phone: 330–740–2104

Probate Court
Phone: 330-740-2310

Genealogical Resources: County marrige records; Births and Deaths 1864–1908; Guardianship; Will and estates (Wills are on film–originals are at the Mahoning Valley Historical Society.)

Mahoning County Recorder's Office
Phone: 330-740-2345

Genealogical Resources: Land and deeds; grave registrations; soldier's discharges after 1864. Mark the envelope of your requests with Probate Office or Recorder's Office

Mahoning County Clerk of Courts
Phone: 330-740-2104

Original civil court files 1846–1900 are housed at the Mahoning Valley Historical Society.

Family History Centers

Family History Centers (FHCs) are branches of the Family History Library in Salt Lake City, Utah, and are located all over the world. Their goal is to provide resources for family history research.

The main FHC for Mahoning County, Ohio is the Youngstown Ohio Family History Center. For additional nearby Family History Centers, search online in the FHC directory.


Public Library of Youngstown and Mahoning County
305 Wick Ave.
Youngstown, OH 44503
Phone: 330–744–8636

Genealogical resources: Newspaper film copies and indexes, directories, cemetery inscriptions database. This library is a FamilySearch Center where films can be ordered and viewed.


Youngstown Historical Center of Industry and Labor
151 W. Wood Street
Youngstown OH 44501–0533
Phone: 330–743-5934

Genealogical resources: Mahoning County Common Pleas Court Records, Court Dockets, Deeds, Newspapers


Mahoning County Chapter of the Ohio Genealogical Society
PO Box 9333
Youngstown, Ohio 44513-9333

The society has volunteers at the courthouse each Thursday 8am to 3pm; located in the Marriage Dept in the basement. Society members also volunteer at the Main Library Thursdays 1–4.

Mahoning Valley Historical Society
648 Wick Avenue
Youngstown, OH 44502-1289
Phone: 330–743-2589
Genealogical collections: The MVHS Archival Library. Original probate and civil court records 1846–1900 for Mahoning County. Collection includes diaries, Bibles, photographs, fraktur, manuscripts, deeds, wills, maps, architectural and mechanical drawings, ledgers, county and local government records, and church records.


Original county tax lists are available 1846 and 1859 at theMahoning Valley Historical Society.

Finding More Tax Records

Additional tax records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Tax Records in online catalogs like:

Vital Records

See Ohio Vital Records for more information about Vital records in Ohio.

Vital records consist of birth, death, marriage and divorce records. Although Ohio enacted a statute in 1856 -1857 requiring registration of births, deaths and marriages, many did not comply. A second law occurred in 1867 but, again, was not always followed. By 1908, the law was more clearly defined and kept. Any existing birth and death records from 1867 through December 19, 1908 are located at the Mahoning County Probate Court. The Ohio Department of Health has birth records filed after December 20, 1908 and death records filed after January 1, 1954 while the Ohio Historical Society houses death records from December 20, 1908 through December 31, 1953. In addtion, the Youngstown City Health District has births 1909 to present and deaths 1892 to present.

Original marriage records are held at the office of the Mahoning County Probate Court with divorce records located with the Clerk of Court.


Online Birth Indexes and Records

Original Birth Indexes and Records on Microfilm


Online Marriage Indexes and Records

Original Marriage Records on Microfilm

  • 1846-1916 - Marriage Records; Marriage Licenses, 1852-1861 - index 1852-1920 FHL films 907323 (first of 23 films)
  • 1846-1865 - Marriages, 1846-1865, Marriage Applications, 1853-1864, Births and Deaths, 1857, of Mahoning County, Ohio; Cemetery Records of Mahoning County FHL film 317439
  • 1857 - Register of Births, Marriages and Deaths FHL film 907325


Online Death Indexes and Records

Original Death Records on Microfilm


Finding More Vital Records

Additional vital records can sometimes be found using search phrases such as Mahoning County, Ohio Genealogy Vital Records in online catalogs like:



  1. WorldCat 50140092 Handybook for Genealogists: United States of America, 10th ed.] (Draper, Utah: Everton Pub., 2002), [FHL book 973 D27e 2002].
  2. Wikipedia contributors, "Mahoning County, Ohio" in Wikipedia: the Free Encyclopedia at,_Ohio (accessed 10 May 2012).