Jury Pool Profile
Plymouth County, Massachusetts
- County seat
- Plymouth, Brockton
- Judicial district
- Plymouth County Superior Court
- Population (July 2025 estimate)
- 546,829
- Census PEP. The five-year ACS survey average is 535,075.
At a glance
Plymouth County is a 546,829-person venue. The county population is 77% White and 8% Black (Census race-alone categories). Median household income is $111,910, $7,341 above the MA state median of $104,569; 41.8% of residents 25 and over hold a bachelor's degree or higher. 14.7% of residents 5 and older speak a language other than English at home, most commonly French, Haitian, or Cajun and Spanish. The largest employment sector is Education & health services, at 29.3% of covered employment, average pay $68,268/year. Trailing-12-month unemployment is 4.65%, above the 4.61% state average. The county carried the Democratic presidential candidate in 2016, 2020, and 2024, taking 51% to 58% of the vote across the three.
- Population
- 535,075
- Median household income
- $114,201
- Unemployment
- 4.7%
Who sits on a jury?
≥70% White (race-alone) and <20% Black. This county: 77% / 8%.
Plymouth County has a population of 535,075, with a median age of 43.0. By Census race-alone categories, White residents make up 77.0%; Black residents 8.0%. Independently, 4.9% of residents identify as Hispanic or Latino of any race.
The median household earns $111,910; 41.8% of residents 25 and over hold a bachelor's degree or higher; 7.3% live below the federal poverty line.
Economic context
BLS QCEW 'Education & health services' is ≥20% of total covered employment. This county: 29.3%.
Education & health services is the largest employment sector at 29.3% of covered employment, followed by Trade, transportation & utilities at 20.6%. Trailing-12-month unemployment is 4.65%, above the Massachusetts state average.
Political composition
Democratic candidate carried this county in 2016, 2020, and 2024 (avg winning share: 54%). 'Strongly' threshold: ≥60% avg.
Plymouth County was carried by the Democratic candidate in the 2016, 2020, and 2024 cycles, with 53.6% in 2024, 57.5% in 2020, 50.7% in 2016.
Languages, households, faith & health
Family households are 70% of all households (thresholds: ≥70% = 'family-dominant'; 50–70% = 'family-majority'; <50% = 'singles/nonfamily-majority'). 14.7% of residents 5 and older speak a language other than English at home (threshold for 'linguistically diverse' is ≥10%).
14.7% of residents 5 years and older speak a language other than English at home. The most common are French, Haitian, or Cajun, Spanish, Vietnamese. Veterans account for 5.7% of the adult civilian population (24,212 individuals).