Middlesex County, Massachusetts

county in Massachusetts, United States

Middlesex County is a county in the U.S. state of Massachusetts, in the United States. As of 2020, the population was 1,632,002,[1] making it the 22nd most populous county in the United States. It is the most populous county in both Massachusetts and New England.

Middlesex County
Middlesex South Registry of Deeds in Cambridge
Middlesex South Registry of Deeds in Cambridge
Official seal of Middlesex County
Map of Massachusetts highlighting Middlesex County
Location within the U.S. state of Massachusetts
Map of the United States highlighting Massachusetts
Massachusetts's location within the U.S.
Coordinates: 42°29′N 71°23′W / 42.49°N 71.39°W / 42.49; -71.39
Country United States
State Massachusetts
FoundedMay 10, 1643
Named forMiddlesex, England
SeatLowell and Cambridge
Largest cityCambridge
Area
 • Total847 sq mi (2,190 km2)
 • Land818 sq mi (2,120 km2)
 • Water29 sq mi (80 km2)  3.5%
Population
 (2020)
 • Total1,632,002
 • Density1,996/sq mi (771/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional districts3rd, 4th, 5th, 6th, 7th

References

change
  1. "QuickFacts: Middlesex County, Massachusetts". United States Census Bureau. Retrieved January 3, 2024.