MobileHome.net has 1 Mobile Homes for Sale in Osage County, MO, including manufactured homes, modular homes and foreclosures. The current average listing price is around $203,713. Mobile home prices in Osage County, MO have remained unchanged at approximately 0% compared to the 12-month average price of $203,713. Listing prices currently range from about $203,713 to $203,713 depending on the size, age, and location of the home.