RVParkStore.com has 1 RVs for Sale in Marion County, PA. Find the perfect RV, camper, or motorhome in Marion County, PA. The current average listing price is around $128,900. RV prices in Marion County, PA have remained unchanged at approximately 0% compared to the 12-month average price of $128,900. Listing prices currently range from about $128,900 to $128,900 depending on the size, age, and mileage of the vehicle.