Glenwood is an unincorporated community in Howard County, Maryland, United States. It is located between Baltimore and Washington, D.C., therefore attracting commuters to those employment centers. The community features acres of open space and is districted to Bushy Park Elementary, Glenwood and Folly Quarter Middle, and Glenelg High schools. Union Chapel was listed on the National Register of Historic Places in 1975 and Round About Hills was added in 2008. The population in 2020 was approximately 3,416.