RVParkStore.com has 1 RVs for Sale in Montgomery County, MA. Find the perfect RV, camper, or motorhome in Montgomery County, MA. The current average listing price is around $21,750. RV prices in Montgomery County, MA have remained unchanged at approximately 0% compared to the 12-month average price of $21,750. Listing prices currently range from about $21,750 to $21,750 depending on the size, age, and mileage of the vehicle.