Cloverly is an unincorporated town and census-designated place in Montgomery County, Maryland, United States. Its population was 15,285 as of the 2020 census. As an unincorporated area, Cloverly's boundaries are not officially defined. Cloverly is, however, recognized by the United States Census Bureau as a census-designated place, and by the Uni…Cloverly is an unincorporated town and census-designated place in Montgomery County, Maryland, United States. Its population was 15,285 as of the 2020 census. As an unincorporated area, Cloverly's boundaries are not officially defined. Cloverly is, however, recognized by the United States Census Bureau as a census-designated place, and by the United States Geological Survey as a populated place.