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Mercer County, Pennsylvania
Genealogy, History & Facts

Mercer County, Pennsylvania Facts

When was Mercer County, PA Created?
Mercer County was established on March 12, 1800 from Allegheny County.

What is the County Seat of Mercer County, PA?
The County Seat is located in Mercer and in addition the county government website is

What counties are adjacent to Mercer County, PA?
Bordering Counties are Crawford CountyVenango CountyButler CountyLawrence CountyMahoning County, Ohio, Trumbull County, Ohio.

Mercer County, PA Vital Records

Where can find Mercer County Birth, marriage, Divorce and Death Records?
Mercer County vital records can be found at the Pennsylvania Office of Vital Records has copies of birth and death records since 1906 and death records. There is a fee for each copy requested. Please refer to the information to the Statewide Vital Records in Pennsylvania for current fees and application process. Birth, marriage, and death records are connected with central life events.

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 Pennsylvania  Birth CertificateDeath Certificate Applications to mail.

Mercer County, PA Census Records

What Mercer County, PA 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 1790-189019001910192019301940.

Mercer Co. Mortality Schedules can be obtained for 1850, 1860, 1870 and 1880. Mercer Co. Industry and Agriculture Schedules can be acquired for 1850, 1860, 1870 and 1880. Mercer Co. Union Veterans Schedules can be found for 1890. You can find free down-loadable and also printable census forms to help you with your research. See Also Pennsylvania Census Records Research Guide

Mercer County, PA Courthouse and Government Records

Mercer County Courthouse

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

Mercer County, PA Societies and Family History Resources

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

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

What other genealogical resources are available in Mercer County, PA?
The following are web links to Genealogy, Records and Resources pertaining to Mercer County. Each of these genealogy links fall into 3 categories: Business oriented Sites, Private Sites or Organization Sites. Some have free access some require a cost. This is basically a listing which has been compiled or submitted. I do not recommend or promote one genealogy site over another.

Mercer Co. PA Maps, Atlases & Gazetteers

Mercer Co. PA Books, Newspapers & Publications

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

Mercer Co. PA Family Websites, Pictures & Histories

Mercer Co. PA General and History Websites

Mercer Co. PA Immigration & Naturalization

Mercer Co. PA Military Records