Grindstone, PA is a city located in Fayette County, Pennsylvania and has a land area of 16.26 square miles (42.11 km2). The water area for the city is 0.02 square miles or 0.05 km2. There is one unique zip code in Grindstone, Pennsylvania and it is 15442. The area code(s) for Grindstone is 724/878.
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