RVParkStore.com has 1 RVs for Sale in Hamilton County, IL. Find the perfect RV, camper, or motorhome in Hamilton County, IL. The current average listing price is around $84,000. RV prices in Hamilton County, IL have remained unchanged at approximately 0% compared to the 12-month average price of $84,000. Listing prices currently range from about $84,000 to $84,000 depending on the size, age, and mileage of the vehicle.