Flea Markets in Mechanicsburg, PA Williams Grove Park Market1550 Williams Grove RdMechanicsburg, PA, 170557176978266Flea MarketFlea MarketsRemember When Flea Market CollectablesSwap MeetThriftCarter's Silver Spring Flea Market6425 Carlisle PikeMechanicsburg, PA, 170507177664899Flea MarketFlea MarketsSwap MeetThriftShow More