Mahoning County, Ohio Genealogy

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Guide to Mahoning County, Ohio ancestry, genealogy and family history, birth records, marriage records, death records, census records, family history, and military records.

County Facts
County seat: Youngstown
Organized: 1 Mar 1846[1]
Parent County(s): Columbiana, Trumbull[2]
Neighboring Counties
Trumbull  • Portage  • Stark  • Columbiana  • Lawrence (PA)  • Mercer (PA)
See County Maps
Mahoning County Courthouse.jpg
Location Map
Map of Ohio highlighting Mahoning County.PNG

County Information[edit | edit source]

Description[edit | edit source]

The county was named from the Mahoning river, which in turn was named from a Native American word meaning "salt lick". It is located in the North-Eastern area of the state.[3]

County Courthouse[edit | edit source]

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

County marriage records; Births and Deaths 1864–1908; Guardianship; Will and estates (Wills are on film–original case packets are at the Mahoning Valley Historical Society.), Land and deeds; grave registrations; soldier's discharges after 1864. Mark the envelope of your requests with Probate Office or Recorder's Office
Original civil court packets/files 1871-1901 are housed at the Mahoning Valley Historical Society.

Mahoning County, Ohio Record Dates[edit | edit source]

Information for this chart was taken from various sources, often containing conflicting dates. This information should be taken as a guide and should be verified by contacting the county and/or the state government agency.

Known Beginning Dates for Major County Records[4]
Birth* Marriage Death* Court Land Probate Census
1856 1846 1856 1795 1846 1847 1820
Statewide registration for births and deaths started in 1908. General compliance year is unknown.

Record Loss[edit | edit source]

There is no known history of courthouse disasters in this county.

Boundary Changes[edit | edit source]

Populated Places[edit | edit source]

For a complete list of populated places, including small neighborhoods and suburbs, visit Hometown Locator. The following are the most historically and genealogically relevant populated places in this county: [7]

Unincorporated communities
Census-designated places

History Timeline[edit | edit source]

Resources[edit | edit source]

Bible Records[edit | edit source]

For an extensive list of resources for Bible Records see Ohio Bible Records.

Biographies[edit | edit source]

Business, Commerce, and Occupations[edit | edit source]

Cemeteries[edit | edit source]

Cemeteries of Mahoning County, Ohio online and in print
Tombstone Transcriptions Online
Tombstone Transcriptions in Print (Often more complete)
List of Cemeteries in the County
See Ohio Cemeteries for more information.


Census Records[edit | edit source]

Historical populations
Census Pop.
1850 23,735
1860 25,894 9.1%
1870 31,001 19.7%
1880 42,871 38.3%
1890 55,979 30.6%
1900 70,134 25.3%
1910 116,151 65.6%
1920 186,310 60.4%
1930 236,142 26.7%
1940 240,251 1.7%
1950 257,629 7.2%
1960 300,480 16.6%
1970 303,424 1.0%
1980 289,487 −4.6%
1990 264,806 −8.5%
2000 257,555 −2.7%
2010 238,823 −7.3%
Source: "".

Church Records[edit | edit source]

Church records and the information they provide vary significantly depending on the denomination and the record keeper. They may contain information about members of the congregation, such as age, date of baptism, christening, or birth; marriage information and maiden names; and death date. For general information about Ohio denominations, see Ohio Church Records.
List of Churches and Church Parishes


  • Records of Woodland Avenue Lutheran Church, Youngstown, in Evangelical Lutheran Church in America database at ($).

Society of Friends

Court Records[edit | edit source]

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

Directories[edit | edit source]

Emigration and Immigration[edit | edit source]

Ethnic, Political, and Religious Groups[edit | edit source]


Funeral Homes[edit | edit source]

Genealogies[edit | edit source]

Guardianship[edit | edit source]

Land and Property Records[edit | edit source]

Land and property records can place an ancestor in a particular location, provide economic information, and reveal family relationships. Land records include: deeds, abstracts and indexes, mortgages, leases, grants and land patents.

See Ohio Land and Property for additional information about early Ohio land grants. After land was transferred to private ownership, subsequent transactions were usually recorded at the county courthouse and where records are currently housed.

Online Land Indexes and Records

Local Histories[edit | edit source]

Local histories are available for this county. County histories may include biographies, church, school and government history, and military information. For more information about local histories, see Ohio Local Histories.

Online Databases and Digital Books:

Other Resources:

Maps and Gazetteers[edit | edit source]

Mercer CountyLawrence CountyColumbiana CountyStark CountyPortage CountyTrumbull CountyOH MAHONING.PNG
Click a neighboring county
for more resources

Migration[edit | edit source]

Military Records[edit | edit source]

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

World War I

Naturalization and Citizenship[edit | edit source]

Online Naturalization Indexes and Records

Newspapers[edit | edit source]

Mahoning County newspapers often contain genealogical value including obituaries, births, marriages, deaths, anniversaries, family gatherings, family travel, achievements, business notices, engagement information, and probate court proceedings.

Obituaries[edit | edit source]

Other Records[edit | edit source]

Periodicals[edit | edit source]

Probate Records[edit | edit source]

From 1797 or the creation of the county, probate records were held by the Court of Common Pleas. After 1852, records are held by the Mahoning County Probate Court. Records include wills, estates, guardianships, naturalizations, marriage, adoption, and birth and death records (1867-1908 only). The records may give the decedent's date of death, name of spouse, children, parents, siblings, in-laws, neighbors, associates, relatives, and their place of residence.

See Ohio Probate Records for information about how to use probate records.

Online Probate Indexes and Records

School Records[edit | edit source]

  • 1935 Chaney High School, Youngstown, Ohio 1935 Basketball Team, with names on photo. Family Old Photos

Social Security Records[edit | edit source]

Tax Records[edit | edit source]

Ohio tax records complement land records and can be used in place of censuses before 1820 or to supplement the years between censuses. Because only persons who owned taxable property were listed, many residents were not included in tax lists. There may also be gaps of several years in the tax records of some counties.

Online Tax Indexes and Records

Vital Records[edit | edit source]

Vital records consist of birth, death, marriage and divorce records. Marriages were usually recorded from the formation of the county and are held at the office of the County Probate Court. Divorce records are located with the county Clerk of Courts.

Any existing birth and death records from 1867 through December 19, 1908 are located at the 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 History Connection houses death records from December 20, 1908 through December 31, 1953. See Ohio Vital Records for more information about Vital records in Ohio.

Birth[edit | edit source]

Marriage[edit | edit source]

Death[edit | edit source]

Divorce[edit | edit source]

Research Facilities[edit | edit source]

Archives[edit | edit source]

Listed below are archives in Mahoning County. For state-wide archival repositories, see Ohio Archives and Libraries.

Family History Centers[edit | edit source]

Family History Center and Affiliate Library Locator map - search for local Family History Centers or Affiliate Libraries

  • Family History Centers provide one-on-one assistance, free access to center-only databases, and to premium genealogical websites.
  • FamilySearch Affiliate Libraries have access to most center-only databases, but may not always have full services normally provided by a family history center.

Local Centers and Affiliate Libraries

Libraries[edit | edit source]

Listed below are libraries in Mahoning County. For state-wide library facilities, see Ohio Archives and Libraries.

Public Library of Youngstown and Mahoning County
Main Library
305 Wick Ave
Youngstown, OH 44503

Museums[edit | edit source]

Youngstown Historical Center of Industry and Labor
151 W Wood St
Youngstown OH 44501–0533

Mahoning Valley Historical Society
648 Wick Ave
Youngstown, OH 44502

Societies[edit | edit source]

Listed below are societies in Mahoning County. For state-wide genealogical societies, see Ohio Societies.

Western Reserve Historical Society
Research Library in the History Center
10825 East Blvd
Cleveland, OH 44106
FamilySearch Wiki

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

Mahoning Valley Historical Society
648 Wick Ave
Youngstown, OH 44502-1289

Genealogical collections: The MVHS Archival Library. Original probate and civil court records 1846–1900 for Mahoning County. The collection includes diaries, Bibles, photographs, fraktur, manuscripts, deeds, wills, maps, architectural and mechanical drawings, ledgers, county and local government records, and church records in addition to other collections.

Websites[edit | edit source]

Research Guides[edit | edit source]

References[edit | edit source]

  1. Ohio Historical Boundary Changes - list of all boundary changes by county provided by Newberry Library
  2. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Ohio.At various libraries (WorldCat); FHL Book 973 D27e 2002.
  3. Genealogy Trails History Group, “Mahoning County, Ohio Genealogy and History”, accessed 2/22/2017.
  4. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Ohio.At various libraries (WorldCat); FHL Book 973 D27e 2002.
  5. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Ohio.At various libraries (WorldCat); FHL Book 973 D27e 2002.
  6. Ohio Historical Boundary Changes - list of all boundary changes by county provided by Newberry Library
  7. Wikipedia contributors, "Mahoning County, Ohio," in Wikipedia: the Free Encyclopedia,,_Ohio, accessed 27 December 2018.