Medford is a city 3.2 miles northwest of downtown Boston on the Mystic River in Middlesex County, Massachusetts, United States. In the 2010 U.S. Census, Medford’s population was 56,173. It is home to Tufts University.
A park called the Middlesex Fells Reservation, to the north, is partly within the city. This 2,060-acre (8 km2) preserve is shared by Medford with the municipalities of Winchester, Stoneham, Melrose, and Malden. The Mystic River flows roughly west to southeast through the middle of the city.