Milford is a city in Kent and Sussex counties in the U.S. state of Delaware. According to the 2020 census, the population of the city is 11,190 people and 4,356 households in the city. The Kent County portion of Milford is part of the Dover, DE Metropolitan Statistical Area and the Philadelphia-Reading-Camden, PA-NJ-DE-MD Combined Statistical Area, while the Sussex County portion is part of the Salisbury, MD-DE Metropolitan Statistical Area.