Register of Probate, Plymouth County
September 1, 2026 · Plymouth County, Massachusetts · County · primary
How do we calculate vote impact?
Vote impact = representation (how much weight one vote carries here, the smaller the district's population, the higher the representation) + decisiveness (how likely this race is to be close, based on past results and number of candidates).
Representation: Low · 23 out of 100
This district is large for its type, so each vote is a smaller slice of the outcome. About 535,075 people live here.
score = 100 × ln(largest population ÷ this district's) ÷ ln(largest ÷ smallest), rounded to 2 decimals = 100 × ln(1,638,365 ÷ 535,075) ÷ ln(1,638,365 ÷ 14,483) = 23.67, comparing counties in MA (grades: 66+ high, 33+ average, otherwise low)
Decisiveness: None · only 1 candidate
One candidate is running unopposed, so votes can't change the outcome.
Low representation + an uncontested race → Very low vote impact.
Clerk of Court is responsible for:
- Keeping court records and case files
- Collecting court fines and fees
- Managing jury summons in many places
- Helping the public file and find court documents
Affected Areas: Anti-Corruption, Government Efficiency, Data Privacy
Candidates
Matthew Joseph McDonough
Democratic · Incumbent · declared
Matthew Joseph McDonough is the Democratic incumbent candidate for Plymouth County Register of Probate. Massachusetts's Plymouth Probate and Family Court identifies him as its register.
Election sources
Source: sec.state.ma.us
Source: sec.state.ma.us
Source: sec.state.ma.us