Derwood is an unincorporated area and census-designated place in east-central Montgomery County, Maryland, United States. It lies just north of Rockville, southeast of Gaithersburg, southwest of Olney, and northwest of the greater Silver Spring area. Derwood was originally "Deer Park" and was then "Deer Wood" before getting its current name.
Zip Codes in Derwood, MD that we also serve: 20855