RVParkStore.com has 1 RVs for Sale in Collier County, MD. Find the perfect RV, camper, or motorhome in Collier County, MD. The current average listing price is around $170,000. RV prices in Collier County, MD have remained unchanged at approximately 0% compared to the 12-month average price of $170,000. Listing prices currently range from about $170,000 to $170,000 depending on the size, age, and mileage of the vehicle.