Franklin County | |
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Coordinates: 42°35′13″N 72°34′26″W / 42.58707°N 72.573944°W | |
Country | United States |
State | Massachusetts |
Founded | 1811 |
Named for | Benjamin Franklin |
Seat | Greenfield |
Largest city | Greenfield |
Area | |
• Total | 725 sq mi (1,880 km2) |
• Land | 699 sq mi (1,810 km2) |
• Water | 25 sq mi (60 km2) 3.5% |
Population (2020) | |
• Total | 71,029 |
• Density | 101.6/sq mi (39.2/km2) |
Time zone | UTC−5 (Eastern) |
• Summer (DST) | UTC−4 (EDT) |
Congressional districts | 1st, 2nd |
Franklin County is a nongovernmental county located in the northwestern part of the U.S. state of Massachusetts. As of the 2020 census, the population was 71,029,[1] which makes it the least-populous county on the Massachusetts mainland, and the third-least populous county in the state. Its traditional county seat and most populous city is Greenfield. Its largest town by area is New Salem.[2] Franklin County comprises the Greenfield Town, MA Micropolitan Statistical Area, which is included in the Springfield-Greenfield Town, MA Combined Statistical Area.