According to the Yellowpages.com, one mobile home-friendly campground is within 10 miles of Gaithersburg, Maryland. The Little Bennett Campgrounds (no website; 23701 Frederick Rd, Clarksburg, MD 20871; 301- 972-9222) is located in the Montgomery County Parks system. The park has power and water with plenty of room for recreational vehicles or RVs. The campground is located north approximately 9 miles north of Gaithersburg by way of Interstate 270 North.
The only mobile home community near Gaithersburg is the Middlebrook Mobile Home Park (no website; 19515 Frederick Rd, Germantown, MD 20876). The community accommodates manufactured homes. There are 194 spaces in the community, according to the Mobile home Park Store. The community is located just over 3 miles north of Gaithersburg on Maryland State Road 355.
Cherry Hill Park (cherryhillpark.com) is a place for RVs and similar mobile homes. It is located 13 miles north of Gaithersburg, and is considered the closest mobile home park for RVs to Washington D.C. The area has room for more than 400 RV and camping sites. It isn't completely wooded, offering pools, golf, a store and arcade, and even transport to the Capitol.
RV mobile homes must call ahead to reserve space, as parks around Gaithersburg are limited to two sites. Manufactured home buyers should look at securing a space prior to securing the home, for the same reason --- space in mobile home communities in the area are limited.