Wyandot County Genealogy Lookup

Wyandot County genealogy records date to 1845 when the county was formed from Crawford, Hancock, Hardin, and Marion Counties. Upper Sandusky is the county seat. The county was named for the Wyandot Indians who had a reservation in the area until 1843. You can search for birth, death, marriage, land, court, and probate records at the courthouse and through local libraries. This page covers the main offices and resources for tracing family lines in Wyandot County, Ohio.

Wyandot County Genealogy Sources

The Wyandot County Courthouse is at 109 S. Sandusky Avenue, Upper Sandusky, OH 43351. Call 419-294-1432 for help. The Probate Court holds birth and death records from 1867 through December 19, 1908. Marriage records start from 1845, the year the county was organized. Probate files date from 1845 and include wills, estate inventories, and guardianship papers.

The Clerk of Courts has divorce records and civil case files from 1845. The Wyandot County Recorder keeps land records from 1845. Deeds, mortgages, and plats are all filed there. Naturalization records at the courthouse cover 1842 to 1906 in the Probate Court and 1847 to 1929 at the Clerk of Courts. Those naturalization records are especially useful for tracing immigrant ancestors who settled in Wyandot County.

Wyandot County Vital Records

Wyandot County is not one of the 28 counties with indexed early birth records at the Ohio History Connection. You need to contact the Probate Court directly for birth and death records from 1867 to 1908. The records are one-line ledger entries giving the name, date, and parents.

For records after December 20, 1908, the Ohio Department of Health handles birth and death certificates. Death records from 1908 through 1953 are at the Ohio History Connection Archives in Columbus. Under Ohio Revised Code Chapter 3705, all vital events must be registered with local authorities. Section 3705.09 requires birth certificates to be filed within ten days of birth. Marriage records stay at the county level with the Probate Court. Divorce records are at the Clerk of Courts.

To order certificates from the state, visit the Ohio Department of Health certificate ordering page. You can also order by mail or in person at the state office in Columbus. Keep in mind that the county Probate Court in Upper Sandusky is still the place to go for marriage records and pre-1908 vital records. The state office does not hold those older county-level documents.

Genealogy Libraries in Wyandot County

The Upper Sandusky Community Library has a solid collection of Wyandot County genealogy materials. Their catalog includes the 1850 Wyandot County federal census index, early settler and landowner records, pioneer life histories, and a book of diagrams and index of Indian landholders on the Wyandot Reservation. They also hold a Wyandot County directory from 1877, which can help place ancestors in specific townships and communities.

The library's holdings go further. They have the record of deaths from the Wyandot County Probate Court covering 1867 to 1908, compiled by the Wyandot Tracers chapter of the Ohio Genealogical Society. Naturalization records from the courthouse run from 1842 to 1929 across both the Probate Court and Clerk of Courts. Marriage licenses from 1845 to 1873 and a general index to probate files from 1845 to 1952 round out the collection. These published indexes and transcriptions save considerable time compared to searching the original records at the courthouse.

The Ohio Department of Health website is a key resource for anyone ordering vital records from Wyandot County or anywhere else in the state.

The Ohio Genealogical Society supports county chapters including the Wyandot Tracers, who compile and publish local record indexes.

Wyandot County Historical Society

The Wyandot County Historical Society runs the Wyandot County Museum in Upper Sandusky. Collections include photographs, manuscripts, and published histories related to Wyandot County families. The museum also has materials on the Wyandot Indians and the reservation era. These collections can help fill in gaps that official records do not cover.

If your ancestors were among the early settlers who moved into the area after the Wyandot removal in 1843, the Historical Society may have information on those first families. Land records from that period show the transition from tribal holdings to private ownership, and the society's collections add context to what the deeds and surveys alone can tell you. The museum also has exhibits on the Wyandot Indians and the reservation period that help explain the area's unique history before American settlement took hold.

Ohio Resources for Wyandot County

For online research, FamilySearch has free databases covering Ohio births, deaths, marriages, and county records. The Ohio Genealogical Society publishes indexes for counties statewide, and the Wyandot Tracers chapter focuses on local records. The OhioGenealogy.org website has links to free databases and transcriptions.

The Ohio Memory digital library offers scanned documents from across Ohio. The Ohio History Connection Vital Records Guide is also useful for figuring out which office holds which records by time period. Under Title 37 of the Ohio Revised Code, most public records in Ohio are open to anyone who asks. Wyandot County was formed from parts of Crawford, Hancock, Hardin, and Marion Counties, so if you cannot find an ancestor in Wyandot County records, check those parent counties as well. Records from before 1845 would have been filed in one of those four counties.

The BGSU Center for Archival Collections also covers Wyandot County in its northwest Ohio service area. They may hold microfilm copies of county records, newspapers, and manuscript collections from the region. The state charges $21.50 per vital record search through the Ohio Department of Health as of 2025 per ORC 3705.24. County offices in Upper Sandusky set their own fees for marriage and probate copies. Call the Probate Court at 419-294-1432 to check current prices before you order.

Nearby Counties

These counties border Wyandot County. Records for ancestors who lived near the county line may be filed in a neighboring county instead.