Berkshire County, Massachusetts

county in Massachusetts, United States

Berkshire County is a county in the U.S. state of Massachusetts. As of the 2020 Census, the county had a population of 129,026.[2] The county seat and largest city is Pittsfield.[3]

Berkshire County
Berkshire County Courthouse
Berkshire County Courthouse
Official seal of Berkshire County
Firmus et Paratus
(Latin "Steadfast and Ready")
Map of Massachusetts highlighting Berkshire 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°23′46″N 73°12′36″W / 42.39613°N 73.209892°W / 42.39613; -73.209892
Country United States
State Massachusetts
FoundedApril 24, 1761
Named forBerkshire, England
Largest cityPittsfield
 • Total946 sq mi (2,450 km2)
 • Land927 sq mi (2,400 km2)
 • Water20 sq mi (50 km2)  2.1%
 • Total129,026
 • Density140/sq mi (50/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district1st


  1. "Cumulative Census of Peru, Massachusetts 1790-1920". Berkshire Genealogist. Vol. XXII. Berkshire Genealogical Society. 2001. p. 45. Some Berkshirites with children 'of parts unknown' left bequests to absent heirs...
  2. "QuickFacts: Berkshire County, Massachusetts". United States Census Bureau. Retrieved January 3, 2024.
  3. "Find a County". National Association of Counties. Retrieved 2011-06-07.