1974Flipped from RepublicanFinal results
1974 election for Massachusetts House District 31
Massachusetts House of Representatives · Massachusetts
Henry J. Odonnell (D) won re-election with 79.5% of the vote, defeating Albert D. Kopiecki (R) by 59.0 points, flipping a seat Republicans held.
Henry J. OdonnellDemocrat · winner · incumbent
79.5%6,440
Albert D. KopieckiRepublican
20.5%1,661
8,101 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1974
Races before and after
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)