Dec 18, 2025 · Meet Your Commissioners Learn more about the Board of Commissioners and how they serve the citizens of Mercer County.

Mercer County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 110,652. [1] Its county seat is Mercer, [3] and its largest city is Hermitage. The county is part of …

Discover Mercer County PA, your perfect getaway in western Pennsylvania! Just an hour north of Pittsburgh, an hour south of Erie, about 90 minutes from Cleveland, and an easy five‑hour drive from …

Oct 24, 2025 · The county was created in 1800 and named for Hugh Mercer, a general in the American Revolution. The main communities are Hermitage, Sharon, Farrell, Grove City, Greenville, and …

Mercer County, Pennsylvania has 672.5 square miles of land area and is the 33rd largest county in Pennsylvania by total area.

Explore Mercer County, PA map with detailed charts and insights into its population, demographics, household information, and more.

Mercer County borders Trumbull and Mahoning in Ohio and Lawrence, Butler, Venango, & Crawford Counties in western Pennsylvania. There are 47 municipalities in Mercer County - 3 Third Class …

Mercer is a borough in Mercer County, Pennsylvania, United States, and its county seat. [4] The population was 1,982 at the 2020 census. [5] It is part of the Hermitage micropolitan area. The …

Nov 1, 2025 · Explore a detailed Map of Mercer County, Pennsylvania showing major cities, key highways, and notable landmarks. Discover where is Mercer County Located, learn about its largest …

Mercer County is one of the fifty-two counties in Pennsylvania where PA SHPO and its contractors will be working over the next two years to collect information about historic places that are …