Republican incumbent Timothy Cruz is unopposed in September and November, per GBH.
Timothy J. Cruz · RepublicanIncumbent▾
Timothy J. Cruz is a Marshfield Republican and prosecutor serving as Plymouth County District Attorney since 2001, elected in 2002 and re-elected five times since, per his office biography. He began as a Plymouth County assistant district attorney in 1985, later ran his own Brockton law practice, and serves as president of the National District Attorneys Association through 2026, per the office biography and the Massachusetts GOP.
Priorities: National advocacy for victims and strategies against violent crime, child exploitation, and opioid addiction, per the Massachusetts GOP announcement of his NDAA presidency
One seat on the three-member commission is up in 2026. Three Republicans competed on September 1 and the nominee meets Democrat Rhonda Nyman of Hanover on November 3, per the certified lists and the Plymouth County Observer. NO RESULT for the Republican contest has been published in any source checked as of September 2, 2026; the Associated Press declared winners only in the Norfolk and Suffolk district attorney contests. All three Republicans are still listed. RE-VERIFY at certification.
Sandra M. Wright · RepublicanIncumbent▾
Sandra M. Wright has been a Plymouth County commissioner since 2011 and chairs the board, per official county meeting records and South Shore News. She says she helped move the county from a $1 million deficit to a $1.5 million surplus with zero debt, per South Shore News. No campaign website or questionnaire response was found as of September 9, 2026; the certified ballot is the only verifiable source for Sandra M. Wright.
Priorities: County fiscal stability and zero debt · Local administration of federal relief funds · Restoring municipal trust in county government (per the South Shore News)
Anthony Thomas O'Brien Sr. of Pembroke is a Navy veteran who served as a lieutenant commander and a former Plymouth County commissioner from 2009 to 2013, including time as chairman, per the Plymouth County Observer. No campaign website or questionnaire response was found as of September 9, 2026; the certified ballot is the only verifiable source for Anthony Thomas O'Brien, Sr.
Priorities: Reviewing and cutting commissioner pay · Recorded meetings and public comment · Skepticism of county administration of federal relief funds (per the South Shore News)
Korey Michael Welch is the owner of the real estate brokerage Boom Realty, a mortgage broker, and a former Rockland selectman, per South Shore News. No campaign website or questionnaire response was found as of September 6, 2026; the official election filing is the only verifiable source for Korey Michael Welch.
Priorities: Board governance and ending internal dysfunction · Defending county-level administration of relief funds · Commissioner pay set by the Advisory Board (per the South Shore News)
Rhonda L. Nyman of Hanover is a Hanover Selectboard member and lifelong Plymouth County resident who represented the 5th Plymouth District in the Massachusetts House from 2011 to 2015, per the Patriot Ledger and the Plymouth County Observer. She is the only certified Democrat.
Priorities: Helping municipalities manage tight budgets · Making residents more aware of the commission's work · More fiscal responsibility, transparency, and accountability on the commission (per the Patriot Ledger coverage)
The sitting treasurer is the only certified candidate in either party.
Thomas J. O'Brien · DemocraticIncumbent▾
Thomas J. O'Brien has been Plymouth County Treasurer since 2006 and previously served as state representative for the 12th Plymouth District, per the county treasurer's official pages. As chairman of the Plymouth County Retirement Association he oversees fund assets for more than 9,000 members and 3,300 retirees, per the official pages. No campaign website or questionnaire response was found as of September 6, 2026.
Matthew Joseph McDonough is the current Register of Probate at the Plymouth County Probate and Family Court, seeking re-election in 2026, per the Secretary of the Commonwealth's certified candidate list. No campaign website or questionnaire response was found as of September 6, 2026.
These race previews show candidates we’re tracking now. A ZIP code shows your statewide and congressional races; a street address adds county and city contests. Local races are address-specific. This guide previews tracked contests, while the lookup tool narrows the list to a voter’s exact address. Tap any name to see the race, full candidate profiles, and everything else on your exact ballot. Massachusetts held its state primary on September 1, 2026: a plurality won each party's contest and voters not enrolled in a party could take either ballot, per the Secretary of the Commonwealth. Results are unofficial until certified.
Sample ballot by ZIP code in Plymouth County
Each ZIP page previews the statewide and congressional races for that ZIP; add a street address in the lookup for county and city contests.
Note: Use address lookup for your exact ballot; local pages preview tracked races.Profiles: Hand-verified profiles are added race by race; always confirm with the official election office linked above.
Timothy J. Cruz is a Marshfield Republican and prosecutor serving as Plymouth County District Attorney since 2001, elected in 2002 and re-elected five times since, per his office biography. He began as a Plymouth County assistant district attorney in 1985, later ran his own Brockton law practice, and serves as president of the National District Attorneys Association through 2026, per the office biography and the Massachusetts GOP.Priorities: National advocacy for victims and strategies against violent crime, child exploitation, and opioid addiction, per the Massachusetts GOP announcement of his NDAA presidency