Map of counties in Northwestern Pennsylvania
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Northwestern Pennsylvania is a region in the Commonwealth of Pennsylvania, containing 10 counties. The city of Erie is the business center and cultural hub of the region. The compiled population of the region was estimated to be 938,516 in 2015. Although the only county with population growth was Butler, the deficit for all other counties was within 3%. The region also includes the Erie-Meadville, PA Combined Statistical Area.
Northwestern Pennsylvania is home to the Allegheny National Forest, and is the heart of Pennsylvania's oil and gas economy.
- Butler (Pittsburgh, PA USA)
- Crawford (Meadville, PA USA)
- Erie (Erie, PA USA)
- Lawrence (New Castle, PA USA)
- Mercer (Youngstown-Warren-Boardman, OH-PA USA)
- Venango (Oil City, PA USA)
- Warren (Warren, PA USA)
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