Franklin County, Massachusetts
Franklin County, Massachusetts | |
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Seal | |
Location within the U.S. state of Massachusetts | |
| Coordinates: 42°35′13″N 72°34′26″W / 42.58707°N 72.573944°W | |
| Country | United States |
| State | Massachusetts |
| Founded | 1811 |
| Named after | 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 (65 km2) 3.5% |
| Population (2020) | |
• Total | 71,029 |
• Estimate (2024) | 70,871 |
| • Density | 102/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 in the northwestern part of the U.S. state of Massachusetts. At the 2020 census, the population was 71,029, which made 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. Franklin County comprises the Greenfield Town, MA Micropolitan Statistical Area, which is included in the Springfield–Greenfield Town, MA Combined Statistical Area.