RVParkStore.com has 1 RVs for Sale in Pierce County, AZ. Find the perfect RV, camper, or motorhome in Pierce County, AZ. The current average listing price is around $16,999. RV prices in Pierce County, AZ have increased approximately 51% compared to the 12-month average price of $11,250. Listing prices currently range from about $16,999 to $16,999 depending on the size, age, and mileage of the vehicle.