The Berkshire County League is a high school athletic conference located in District 1 of the Massachusetts Interscholastic Athletic Association. The league consists of eleven high schools in Berkshire County, Massachusetts. Most of the high schools are public, except the Berkshire Waldorf High School, which is private, and Taconic High School, which is vocational. 
At its height, the league was split into two divisions. The northern division typically consisted of Adams/Hoosac Valley, Drury, Mt. Greylock, Pittsfield, both St. Joseph schools, Taconic, and Waconah. The southern division typically consisted of Chester, Lee, Lenox, McCann Tech, Monument Mountain, Mt. Everett, Searles, and Williams. The league currently has only one division.
Member Schools.
 While participating in field soccer teams, the Berkshire Waldorf School does not play other MIAA schools. They are MIAA members so their students can co-op with other schools in the league.
State Champions.
List of state championships won by teams while a part of the conference:
Football.
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"Note: From 1972 to 2012, football state championships were separated by region, so there would be multiple champions from each division. From 1972 to 1977 and from 1997 to 2008, it was split between Eastern Mass and Central/Western Mass and there would be two champions in each division. From 1978 to 1996 and from 2009 to 2012 Central and Western Mass split so there would be three champions in each division. In 2013 everything was combined and therefore only allowed one state champion per division."
Cross Country.
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Volleyball.
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Soccer.
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Basketball.
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Ice Hockey.
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Winter Swim & Dive.
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Alpine Ski.
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Nordic Ski.
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Baseball.
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