Schools in Grindstone, Pennsylvania, the US. Schools locations in Grindstone, Pennsylvania. Find the nearest schools locations, near you. All types of business services ATM Bank Finance Lawyer School All schools in Grindstone Colonial School School 6353 National Pike East, Grindstone, Pennsylvania 15442 Write a review Phone Directions Jefferson School School Grindstone, Grindstone, Pennsylvania 15442 Write a review Phone Directions