An aquaintance was looking to buy a house in PA about twenty five years ago, and he basically took a map of the general area he liked and used a compass to draw circles around the black populations in the general vicinity. He made sure he was over a dozen miles away from any of them, and twenty five years later his home has appreciated nicely. There has been a lot of development of former farms in the area, and the new homes are incredible - adding nicely to his own value.
Sounds like the Chester Springs area.