Glenwood is an unincorporated community and census-designated place in McDowell County, North Carolina, United States. It was first listed as a CDP in the 2020 census with a population of 501.
Glenwood is located along U.S. Route 221, south of Marion and north of Rutherfordton. Glenwood has a post office with ZIP code 28737.
According to the U.S. Census Bureau, the Glenwood CDP has an area of , of which , or 0.62%, are water. The community is drained by North Muddy Creek and its tributary, Goose Creek. North Muddy Creek is a northeast-flowing tributary of the Catawba River.