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Miami County, Ohio
Genealogy, History & Facts

Miami County, Ohio Facts

Miami County

When was Miami County, OH Created?
Miami County was created on March 1, 1807 from Montgomery County. This county was named for the Miami Indians .

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

What counties are adjacent to Miami County, OH?
Bordering Counties are Shelby County ( north), Champaign County (northeast), Clark County (southeast), Montgomery County (south), Darke County (west) .

Miami County Townships Map

What cities and towns are in Miami County, OH?
Cities and towns located in the County include Huber Heights, Piqua, Tipp City, Troy, Union, Bradford, Casstown, Covington, Fletcher, Laura, Ludlow Falls, Pleasant Hill, Potsdam, West Milton. Other communities include Brandt, Conover, Phoneton, West Charleston.

What townships are in Miami County, OH?
Townships located in the County include Bethel, Brown, Concord, Elizabeth, Lost Creek, Monroe, Newberry, Newton, Spring Creek, Staunton, Union, Washington.

Miami County, OH Vital Records

Where can find Miami County Birth, marriage, Divorce and Death Records?
Miami 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 Miami 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.

The Miami County Health Department has Birth & Death Records from 1908-Present. For birth and death records prior to Dec. 20, 1908, contact the Probate Court of this county.

Miami County, OH Census Records

What Miami County, OH census records are available?
There are many types of census records for Miami County guide you in researching your family tree. Federal Population Schedules are available for 1810, 1820, 1830, 1840, 1850, 1860, 1870, 1880 (free index), 1890 (fragment), 1900, 1910, 1920, 1930, 1940.

Miami Co. Mortality Schedules can be found for 1850, 1860, 1870 and 1880. Miami Co. Industry and Agriculture can be obtained for 1850, 1860, 1870 and 1880. Miami 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

Miami County, OH Courthouse and Government Records

Miami County Courthouse

What genealogical records can I find in the Miami County Courthouse?
The below facts shows exactly what death, marriage, birth, property, wills, and court records are typically in Miami County. The years listed below are the first noted records with this county. See Also Ohio Corthouse Records Research Guide.

  • Miami County Courthouse (all departments listed below are located here, unless otherwise noted)
    • Address: 215 W. Main St., Troy 45373-3263
    • Phone: (937) 332-6800
  • Miami County Clerk of Probate Court handles the probating of wills, estate administrations, trusts, guardianships, adoptions, birth corrections, delayed birth registrations and issues marriage licenses. The Probate Court is that the Probate Judge is the ex-officio Clerk of Courts, thus, the Court performs all the duties as its own Clerk of Courts
    • Address: 201 W. Main St., Troy 45373
    • Phone: Phone (937) 440-6050 
    • Marriage Records: 1807 
    • Probate Records: 1807
  • Miami County Recorder has the duty of keeping specific records which may include: deeds, mortgages, military discharges, plats, etc.
    • Address: 201 West Main Street, Troy, Ohio 45373
    • Phone: 937-440-6040
    • Land Records: 1807
  • Miami County Clerk of Court of Common Pleas is responsible for duties that include filing, docketing, indexing, and preserving all court pleadings for civil, felony criminal and domestic relations cases. Other services provided by the Clerk of Court of Common Pleas are administering oaths, keeping naturalization records, and recording and retention of coroner records.
    • Address: 201 West Main Street, Troy, OH 45373
    • Phone: (937) 440-6011
    • Court Records: 1804
  •  Ohio, Wills and Probate Records, 1786-1998
  • BLM Land Records
  • Miami County USGenWeb Archives Project

Miami County, OH Societies and Family History Resources

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

  • Miami County Historical & Genealogical Society, OGS, PO Box 305, Troy, OH 45373-0305; Miami County Chapter, OGS has regular meetings on the third Tuesday of the month, except July and August. The Miami County Historical and Genealogical Society is currently working on a reprint of the Miami County Atlas.
  • Covington-Newberry Historical Society, 101 E Spring St, Covington, OH 45318-1532; The Covington-Newberry Historical Society has mostly local items on display and is open by appointment.
  • Oakes-Beitman Memorial Library & Museum , P O Box 181, Pleasant Hill, OH 45359-0181;Phone: (937) 676-8771; The Newton Museum is dedicated to preserving the history of Pleasant Hill and Newton Township by displaying photographs, newspapers, furniture, school photos, band uniforms and features past merchant items and articles relating to the well being of Newton Township. Archives for "The Beery School of Horsemanship", local family obituaries and files are maintained in the History and Genealogy room.
  • Rossville-Spring Creek Historical Society, PO Box 627, Piqua, OH 45356-0627; The Rossville-Spring Creek Historical Society protects the Randolph Village and cemetery.
  • Tippecanoe Historical Society, 20 N Third, PO Box 42, Tipp City, OH 45371-0042; Phone: (937) 667-3768; The Tippecanoe Historical Society maintains the 1930 Post Office building as its museum. The Museum includes displays and a research library on the history of Tipp City, formerly called Tippecanoe City, and of Monroe and Bethel Townships. The Society conducts guided walking or bus tours of Old Tippecanoe City.
  • Troy Historical Society , 100 W Main St, Troy, OH 45373-3214; Phone: (937) 339-5900; The Troy Historical Society operates a research library containing local historical and genealogical information for the use of the general public. The collection consists of combined materials from Troy-Miami County Public Library and Troy Historical Society.
  • Union Township Heritage Association , 47 N Miami St, West Milton, OH 45383-1825; Phone: (937) 698-3820; The Union Township Heritage Association collects artifacts of Union Township. The Society of Friends (Quakers) settled in the area and established the first organized church in 1804 which is considered the parent church of all Quaker churches in the western United States. The Association maintains a log cabin replica of the church.
  • Waco Historical Society, 306 S Ridge Ave, Troy, OH 45373-3012; Phone: (937) 339-5037; The Waco Historical Society preserves the history and artifacts of the Waco Aircraft Company, displaying them in its museum. The Museum also maintains a research library and a blueprint archives.
  • Western Shaker Study Group, PO Box 67, West Milton, OH 45383-0067; The Western Shaker Study Group represents Shaker enthusiasts who focus on studying Shaker villages in Ohio, Kentucky, and Indiana. The Group's programs include tours of Shaker sites and presentations on Shaker industries and individual Shaker towns.
  • Troy Miami County Library, 419 W Main St, Troy, OH 45373; 937-339-0502
  • Oakes-Beitman Library, 2 North Main Street, Pleasant Hill, Ohio 45359
  • J.R. Clark Public Library, Local History Room, East Spring St., Covington, Ohio 45318
  • Flesh Public Library, History Department, 124 West Green Street, Piqua, Ohio 45356; (937) 773-6753 voice, (937) 773-5981 fax
  • 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 Miami County, OH Researchers through message boards and forums?

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

Miami Co. OH Books, Newspapers & Publications

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

Miami Co. OH Family Websites, Pictures & Histories

Miami Co. OH General and History Websites

Miami Co. OH Immigration & Naturalization

Miami Co. OH Maps, Atlases & Gazetteers

Miami Co. OH Military Records

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