Grindstone, Pennsylvania

ZIP codes in Grindstone

Area codes for Grindstone

• Area code 724

  In service since February 1, 1998. Shares its area with 878. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 878

  In service since August 17, 2001. Shares its area with 412 and 724. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Grindstone is in the Eastern Time zone.

Towns near Grindstone

• Rowes Run1.9 km (1.2 mi)
• Allison3.1 km (1.9 mi)
• Brier Hill3.2 km (2.0 mi)
• Chestnut Ridge3.9 km (2.4 mi)
• Brownsville4.1 km (2.5 mi)
• West Brownsville5.1 km (3.2 mi)
• Hiller5.8 km (3.6 mi)
• Republic6 km (3.7 mi)