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Mercer is a borough in and the county seat of Mercer County, Pennsylvania, United States. The population was 1,982 at the 2020 census.
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The towns of Mercer (at first a tavern), Sharon, Greenville, and Grove City, all began between 1796 and 1798. Distilleries and grist and sawmills marked the ...
Mercer, county, northwestern Pennsylvania, U.S., bordered by Ohio to the west and located midway between the cities of Erie and Pittsburgh.
The county's rich history presents yet another opportunity, given the increased popularity of heritage-based tourism. The 1996 Mercer County Comprehensive Plan ...

Mercer County Historical Society

(8) Non-profit organization in Mercer, Pennsylvania
Address: 119 S Pitt St, Mercer, PA 16137
Hours: Closed ⋅ Opens 11 AM Fri
Phone: (724) 662-3490
Created on March 12, 1800, as part of Allegheny County, Mercer County was named after General Hugh Mercer from the American Revolution.
In 1803, the Commonwealth of Pennsylvania designated Mercer as the county seat and established its location, size, and name.
Guide to Mercer County, Pennsylvania ancestry, genealogy and family history, birth records, marriage records, death records, census records, and military ...
Mercer was one of eight new counties formed in the year 1800 alone. Located in northwestern Pennsylvania, the 670 square miles that was to become Mercer County ...
The First Courthouse was built on the current site in 1807 from the proceeds of the sales of lots in Mercer at a cost of $7,116. The courthouse was a square ...
The Mercer County Historical Society is your headquarters for learning about the history of our county—its people, its places, and its events.