San Mateo County, California

• White (non-Hispanic) 257,595 34.7%
• Hispanic or Latino (any race) 184,940 24.9%
• Black or African American (non-Hispanic) 14,709 2.0%
• Asian (non-Hispanic) 230,413 31.0%
• Two or more races (non-Hispanic) 38,779 5.2%
• American Indian / Alaska Native (non-Hispanic) 861 0.1%
• Native Hawaiian / Pacific Islander (non-Hispanic) 8,031 1.1%
• Some other race (non-Hispanic) 7,012 0.9%

• Under 18 145,095 19.5%
• 18–24 54,440 7.3%
• 25–44 214,469 28.9%
• 45–64 196,094 26.4%
• 65 and over 132,242 17.8%

Median household income

$158,569

90% interval $153,226–$163,912

+$58,439 vs CA · 2nd of 58

Below poverty line

7.2%

90% interval 6.4%–8.0%

−4.6 pp vs CA · 56th of 58

Unemployment (12-mo)

3.7%

−1.63 pp vs. state

County GDP

$217.0B

5.36% of state

Avg. annual pay

$214,295

Establishments

31,709

• Professional & business services 91,895 22.3%
• Education & health services 76,400 18.6%
• Trade, transportation & utilities 70,343 17.1%
• Leisure & hospitality 44,854 10.9%
• Information 42,016 10.2%
• Financial activities 23,101 5.6%
• Manufacturing 20,725 5.0%
• Construction 16,344 4.0%
• Other services 14,175 3.4%
• Public administration 10,148 2.5%
• Natural resources & mining 1,304 0.3%
• Unclassified 42 0.0%

Home ownership

58.5%

+2.6 pp vs CA · 42nd of 58

Median gross rent

$2,922

+$886 vs CA · 1st of 58

Owner-occupied

154,607

Renter-occupied

109,812

• Moderately concentrated

  Top three sectors employ 58% of the county workforce. Substantial intra-sector overlap among panelists is likely; confirm employer relationships before sector-specific framing.

• Wide wage spread

  Highest-paid sector (Information, $822,180/yr) pays 18.1× the lowest (Leisure & hospitality, $45,519/yr). Stark intra-economy class divisions on the panel; calibrate damages and lost-wages framing to that range.

• Mixed business scale

  Average establishment employs 13 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 242,957 73.5%
• Republican 76,616 23.2%
• Other / third-party 10,937 3.3%

• Spanish 124,233 17.6%
• Chinese 67,316 9.6%
• Tagalog 42,068 6.0%
• Russian, Polish, or other Slavic 11,402 1.6%
• Arabic 5,519 0.8%
• French, Haitian, or Cajun 5,077 0.7%
• Korean 4,670 0.7%
• Vietnamese 3,437 0.5%
• German or other West Germanic 3,203 0.5%

Households

264,419

Family households

179,491

67.9% of households

Married couples w/ children

58,031

32.3% of families

Single-mother families

9,665

5.4% of families

Veterans

17,374

2.9% of civilians 18+

• Catholic 161,466 21.1%
• Other (non-Christian + minor traditions) 44,226 5.8%
• Evangelical Protestant 26,853 3.5%
• Mainline Protestant 13,968 1.8%
• Orthodox 7,175 0.9%
• Black Protestant 3,434 0.4%

Health insured

96.2%

±0.3 pp

Uninsured

3.8%

±0.3 pp

55th of 58

With a disability

9.4%

±0.3 pp

55th of 58

Bachelor's or higher

53.7%

±0.8 pp

+16.6 pp vs CA · 4th of 58

Uninsured, under 65 (2024)

4.4%

90% interval 4.0%–4.8% · Census SAHIE

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

Trial court

San Mateo County Superior Court

Judges

41 (Superior Court judges + commissioners; vintage 2026 courts.ca.gov per-court rosters and Judicial Council Court Statistics Report. Counts for the smallest rural counties (Alpine, Sierra, Mono, Modoc, Trinity, Mariposa, Colusa) are at or near the statutory authorized-judgeship floor per Cal. Gov. Code § 69590 et seq.)

Court seats

Redwood City

Traffic fatalities

30

5.02 per 100k adults (18+)

Fatal crashes

27