Middlesex County, Massachusetts

• White (non-Hispanic) 1,066,504 65.1%
• Hispanic or Latino (any race) 151,761 9.3%
• Black or African American (non-Hispanic) 77,245 4.7%
• Asian (non-Hispanic) 222,642 13.6%
• Two or more races (non-Hispanic) 95,499 5.8%
• American Indian / Alaska Native (non-Hispanic) 878 0.1%
• Native Hawaiian / Pacific Islander (non-Hispanic) 553 0.0%
• Some other race (non-Hispanic) 23,283 1.4%

• Under 18 318,865 19.5%
• 18–24 159,380 9.7%
• 25–44 476,196 29.1%
• 45–64 416,917 25.4%
• 65 and over 267,007 16.3%

Median household income

$132,599

90% interval $129,232–$135,966

+$28,030 vs MA · 2nd of 14

Below poverty line

7.8%

90% interval 7.2%–8.4%

−2.0 pp vs MA · 11th of 14

Unemployment (12-mo)

4.2%

−0.46 pp vs. state

County GDP

$240.7B

30.91% of state

Avg. annual pay

$118,479

Establishments

59,776

• Education & health services 237,366 26.3%
• Professional & business services 228,064 25.2%
• Trade, transportation & utilities 122,674 13.6%
• Leisure & hospitality 76,242 8.4%
• Manufacturing 65,339 7.2%
• Construction 44,218 4.9%
• Information 38,094 4.2%
• Financial activities 33,621 3.7%
• Public administration 28,814 3.2%
• Other services 25,584 2.8%
• Natural resources & mining 3,549 0.4%

Home ownership

61.3%

−1.2 pp vs MA · 13th of 14

Median gross rent

$2,201

+$439 vs MA · 2nd of 14

Owner-occupied

388,893

Renter-occupied

245,322

• Concentrated

  Top three sectors employ 65% of the county workforce. Most panelists likely share employer relationships within these sectors, surface those connections early in voir dire before any institutional-defendant or sector-specific framing.

• Wide wage spread

  Highest-paid sector (Information, $250,482/yr) pays 6.6× the lowest (Leisure & hospitality, $38,107/yr). Stark intra-economy class divisions on the panel; calibrate damages and lost-wages framing to that range.

• Mixed business scale

  Average establishment employs 15 workers, a mix of institutional employers and small businesses. Both employed-by-large-institution and small-business-owner perspectives are likely on the panel.

• Democratic 554,471 68.5%
• Republican 235,118 29.0%
• Other / third-party 19,924 2.5%

• Spanish 102,298 6.6%
• Chinese 61,590 4.0%
• French, Haitian, or Cajun 28,224 1.8%
• Russian, Polish, or other Slavic 21,086 1.4%
• Arabic 11,004 0.7%
• Vietnamese 10,698 0.7%
• Korean 8,547 0.5%
• German or other West Germanic 6,208 0.4%
• Tagalog 1,886 0.1%

Households

634,215

Family households

401,472

63.3% of households

Married couples w/ children

136,328

34.0% of families

Single-mother families

25,533

6.4% of families

Veterans

43,892

3.3% of civilians 18+

• Catholic 642,062 39.3%
• Other (non-Christian + minor traditions) 112,243 6.9%
• Mainline Protestant 52,513 3.2%
• Evangelical Protestant 50,564 3.1%
• Orthodox 21,951 1.3%
• Black Protestant 3,198 0.2%

Health insured

97.6%

±0.2 pp

Uninsured

2.4%

±0.2 pp

9th of 14

With a disability

9.9%

±0.2 pp

12th of 14

Bachelor's or higher

59.5%

±0.5 pp

+12.2 pp vs MA · 1st of 14

Uninsured, under 65 (2024)

2.9%

90% interval 2.7%–3.1% · Census SAHIE

The under-65 uninsured rate is not comparable to the ACS insurance figures, which cover all ages.

Trial court

Middlesex County Superior Court

Judges

15 (Superior Court Justice base assignments per county (general civil + felony criminal jurisdiction); vintage 2026 mass.gov/orgs/superior-court. Under Mass. Gen. Laws ch. 212, Justices may be reassigned across counties by the Chief Justice of the Superior Court Department; counts here reflect typical base allocations rather than a permanently-fixed roster. Other Trial Court departments (District Court, Boston Municipal Court, Probate and Family Court, Juvenile Court, Land Court, Housing Court) handle limited-jurisdiction matters and are not counted here.)

Court seats

Cambridge, Lowell

Traffic fatalities

55

4.17 per 100k adults (18+)

Fatal crashes

54