As of the 2021 redistricting cycle, the 1st district contains 83 municipalities:
Berkshire County (32) : All 32 municipalities
Franklin County (4) :
Charlemont,
Hawley,
Monroe,
Rowe Hampden County (23) : All 23 municipalities
Hampshire County (11) :
Belchertown,
Cummington,
Easthampton,
Granby,
Huntington,
Middlefield,
Plainfield,
South Hadley,
Southampton,
Ware,
Worthington Worcester County (13) :
Brookfield,
Charlton,
Dudley,
East Brookfield,
New Braintree,
North Brookfield,
Southbridge,
Spencer,
Sturbridge,
Oxford,
Warren,
Webster (part; also
2nd; includes part of
Webster CDP),
West Brookfield History of district boundaries After the 2010 census, the 1st district shifted from covering the western and north-central portions of the state to covering the western and south-central portions of the state. Following the 2020 census, the 1st district boundaries did not shift as drastically but moved to cover somewhat less of the western portions of Franklin and Hampshire Counties while encompassing more of Worcester and southeastern Hampshire Counties. == Recent election results from statewide races ==