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Mercer County, Ohio
Genealogy, History & Facts

Mercer County, Ohio Facts

When was Mercer County, OH Created?
Mercer County was created on April 1, 1820 from Darke County and Shelby County (Organized in 1824). This county was named for General Hugh Mercer (1726-1777), a Revolutionary War officer .

What is the County Seat of Mercer County, OH?
The County Seat is located in Celina also, the county government website is .

What counties are adjacent to Mercer County, OH?
Bordering Counties are Van Wert CountyAuglaize CountyShelby CountyDarke CountyJay County, Indiana, Adams County, Indiana .

Mercer County, OH Vital Records

Where can find Mercer County Birth, marriage, Divorce and Death Records?
Mercer County vital records can be found at the Ohio Department of Health which has Birth Records since Dec 20, 1908; Death Records since since 1954 and copies of Marriage and Divorce Records since 1918 to present There is a fee for each copy requested. Please refer to the information to the Statewide Vital Records in Ohio for current fees and application process.

You can search online for Mercer County Birth, Marriage, Divorce or Death Records. You can also Order Electronically Online or can download an application for Ohio Birth Certificate, Marriage Certificate, Divorce Certificate, Death Certificate Application to mail. The Archives Division has copies of births before 1908, death before 1944 and marriage records before 1949.

Mercer County, OH Census Records

What Mercer County, OH census records are available?
There are many types of census records for Mercer County guide you in researching your family tree. Federal Population Schedules are available for 1820183018401850186018701880 (free index)1890 (fragment)19001910192019301940.

Mercer Co. Mortality Schedules can be found for 1850, 1860, 1870 and 1880. Mercer Co. Industry and Agriculture can be obtained for 1850, 1860, 1870 and 1880. Mercer Co. Union Veterans Schedules is available for 1890. One can find free online and printable census forms to help you with your research. See Also Ohio Census Records Research Guide

Mercer County, OH Courthouse and Government Records

Mercer County Courthouse

What genealogical records can I find in the Mercer County Courthouse?
Researchers frequently overlook the great importance of Mercer County court, probate, and land records data as a useful resource of ancestry and genealogy information. Buried away in Ohio courthouses and archives everywhere are the ambitions and frustrations of countless Ohio residents. The possibilities are excellent that your forefathers have left a comprehensive document of at least a number of facets of their lives in the Mercer County court records. Even if your forebears is not referred to in a Court case, contemplate all of the other procedures that could have lead to him or her to appear in court records. See Also Ohio Courthouse Records Research Guide.

Mercer County, OH Societies and Family History Resources

What genealogical and historical societies, archives, museums, associations and libraries are available for Mercer County, OH?
A list of Mercer County Historical  and Genealogical Societies, Libraries, Archives. See also list of Statewide Ohio Archives, Historical & Genealogical Societies.

  • Mercer County Chapter, OGS, PO Box 437, Celina, OH 45822-0437; Phone: (419) 992-3810; Mercer County Chapter, OGS meets at 2:00pm on the first Sunday of each month, except August, at the Richardson-Bretz Building, 115 W. Fulton St., Celina, OH. This OGS Chapter’s genealogical materials are housed at the Mercer County Library, 303 N. Main Street, Celina – Phone (419) 586-4442.
  • Robot for Wright State University Archives, Special Collections and Archives, Paul Laurence Dunbar Library, Wright State University, Dayton, OH 45435; 937-775-2092
  • Mercer County Historical Museum , PO Box 512, 130 E Market St, Celina, OH 45822-0512; Phone: (419) 586-6065; The Mercer County Historical Museum is recognized for its scholarly lecture series, local history publications on county and/or community history, the barn architecture of the many Mercer County barns, James Zura Riley’s Gold Rush Diaries, and archival research on Captain James Riley.
  • Shanes Crossing Historical Society, PO Box 282, Rockford, OH 45882-0282; Phone: (419) 363-2998; The Shanes Crossing Historical Society actively collects artifacts, books, and memorabilia relating to village history and history of the area. The Society is presently relocating and restoring a historically significant log house.
  • Fort Recovery Historical Society, PO Box 533, Fort Recovery, OH 45846-0533; Phone: (419) 375-4649; The Fort Recovery Historical Society exhibits the Native American and military dress of the 1790s, fort construction, and the use of the pack cannon. Also included are exhibits describing the Indian Wars of the 1790s, a balcony gallery containing the largest collection of Native American artifacts in Ohio, and articles of local historical interest. The Society operates the Museum for the Ohio Historical Society.
  • Ohio Historical Society, Archives-Library Division,  1982 Velma Avenue, Columbus, OH 43211; Telephone: 614-297-2300
  • Ohio Genealogical Society, 713 South Main Street, Mansfield OH 44907-1644

Where can I connect with other Mercer County, OH Researchers through message boards and forums?

What other genealogical resources are available in Mercer County, OH?
The following are web links to Genealogy, Records and Resources pertaining to Mercer County.

Mercer Co. OH Books, Newspapers & Publications

Mercer Co. OH Church / Bible Records & Cemeteries / Graveyards

Mercer Co. OH Family Websites, Pictures & Histories

Mercer Co. OH General and History Websites

Mercer Co. OH Immigration & Naturalization

Mercer Co. OH Maps, Atlases & Gazetteers

Mercer Co. OH Military Records