Crumpton is a census-designated place in Queen Anne's County, Maryland, United States. Crumpton is located along the Chester River, west-southwest of Millington. Crumpton has a post office with the ZIP code 21628. Crumpton changed from an unincorporated community to a census-designated place for the 2020 Census. Per the 2020 Census, the population was 496. Demographics 2020 census Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race. References External links Map of Crumpton, from the Historical Society of Kent County collection Census-designated places in Queen Anne's County, Maryland Census-designated places in Maryland