MobileHome.net has 102 Mobile Homes for Sale in Williamstown , NJ, including manufactured homes, modular homes and foreclosures. The current average listing price is around $117,122. Mobile home prices in Williamstown , NJ have decreased approximately 35% compared to the 12-month average price of $180,076. Listing prices currently range from about $7,000 to $381,985 depending on the size, age, and location of the home. Page 6

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