The 3rd district, in Kennebec, Penobscot, and Somerset counties, consisted of Clinton, Madison, Norridgewock, Pittsfield, Skowhegan, 9 other municipalities, and one township. Incumbent Republican Brad Farrin had represented the 3rd district since 2018, and was re-elected. The district also included the home of incumbent Republican Scott Cyrway, who had represented the 16th district since 2014, and was term-limited.
The 4th district, in Penobscot and Piscataquis counties, consisted of Corinth, Dexter, Dover-Foxcroft, Glenburn, Levant, 24 other municipalities, and several townships. Incumbent Republican Paul Davis had represented the 4th district since 2014, was term-limited. The new 4th district also included the home of incumbent Republican Stacey Guerin, who had represented the 10th district since 2018. She was re-elected.
The 5th district, in Franklin, Kennebec, and Somerset counties, consisted of Anson, Farmington, New Sharon, St. Albans, Wilton, 31 other municipalities, and several townships. The new 5th district included the home of incumbent Republican Russell Black, who had represented the 17th district since 2018. He was re-elected.
The 7th district, in Hancock and Knox counties, consisted of Bar Harbor, Blue Hill, Ellsworth, Mount Desert, Orland, and 17 other municipalities. Incumbent Democrat Louis Luchini represented the 7th district from 2018 until he resigned on January 18, 2022. Democrat Nicole Grohoski was elected in a special election coinciding with the primary election, and she was re-elected.
The 8th district, in Penobscot County, consisted of Lincoln, Milford, Old Town, Orono, Veazie, 15 other municipalities, and several townships. The new 8th district included the home of incumbent Democrat Jim Dill, who had represented the 5th district since 2014. He was term-limited, and Democrat Mike Tipping was elected.
The 9th district, in Penobscot County, consisted of Bangor and Hermon. Incumbent Democrat Joe Baldacci had represented the 9th district since 2020, and was re-elected.
The 10th district, in Hancock and Penobscot counties, consisted of Brewer, Bucksport, Hampden, Holden, Orrington, and 7 other municipalities. The new 10th district included the home of incumbent Republican Kimberley Rosen, who had represented the 8th district since 2014. She was term-limited, and Republican Peter Lyford was elected.
The 17th district, in Androscoggin and Kennebec counties, consisted of Greene, Lisbon, Litchfield, Sabattus, Turner, and 5 other municipalities. The new 17th district included the home of incumbent Republican Jeff Timberlake, who had represented the 22nd district since 2018. He was re-elected.
The 18th district, in Androscoggin, Cumberland, and Oxford counties, consisted of Bridgton, Fryeburg, Norway, Oxford, Paris, and 9 other municipalities. The new 18th district included the home of incumbent Republican Rick Bennett, who had represented the 19th district since 2020. He was re-elected.
The 19th district, in Franklin and Oxford counties, consisted of Bethel, Dixfield, Jay, Mexico, Rumford, 30 other municipalities, and several townships. The new 19th district included the home of incumbent Republican Lisa Keim, who had represented the 18th district since 2016. She was re-elected.
The 24th district, in Lincoln and Sagadahoc counties, consisted of Bath, Bowdoinham, Richmond, Topsham, Woolwich, and 6 other municipalities. The new 24th district included the home of incumbent Democrat Eloise Vitelli, who had represented the 23rd district since 2016. She was re-elected.
The 27th district, in Cumberland County, consisted of parts of Portland and Westbrook. The new 27th district included the home of incumbent Democrat Heather Sanborn, who had represented the 28th district since 2018. She retired, and Democrat Jill Duson was elected.
The 28th district, in Cumberland County, consisted of part of Portland. The new 28th district included the home of incumbent Democrat Ben Chipman, who had represented the 27th district since 2016. He was re-elected.