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San Mateo County, CA jobs, unemployment and layoffs

San Mateo County’s unemployment rate is 4.0%. Employers filed 10 layoff notices here in the last 12 months. 1,872 open professional jobs are in its cities.

San Mateo County economy

  • 4.0%

    unemployment, Aug 2026

    4.3% the month before

  • 408,396

    in the labor force

    Source: BLS Local Area Unemployment Statistics

  • 745,100

    people in San Mateo County

    Source: U.S. Census Bureau

  • $156,000

    median household income

    Source: Census ACS

  • 55%

    of workers in white-collar occupations

    Management, business, financial and professional; Census ACS

San Mateo County layoffs

  • 10

    WARN layoff notices, last 12 months

  • 1,412

    workers named

    A floor: states may leave out counts

  • 8

    employers

WARN notices filed in San Mateo County, newest first
Notice dateEmployerCity or countyWorkersTypeSource
Oracle America, Inc.Takes effect Nov 13, 2026San Mateo County279Layoff PermanentState record
LeeMah ElectronicsTakes effect Dec 21, 2026San Mateo County62Closure PermanentState record
Arsenal Biosciences, Inc.Takes effect Oct 29, 2026San Mateo County58Layoff PermanentState record
Cellares CorporationTakes effect Oct 20, 2026San Mateo County100Layoff PermanentState record
LeeMAH ElectronicsTakes effect Oct 16, 2026San Mateo County205Closure PermanentState record
Flying Food Group, LLCTakes effect Oct 13, 2026San Mateo County72Closure PermanentState record
VisaTakes effect Oct 1, 2026San Mateo County320Layoff PermanentState record
Yerba Mate Co., LLC - South San FranciscoTakes effect Sep 1, 2026San Mateo County1Layoff PermanentState record
LeeMAH ElectronicsTakes effect Sep 8, 2026San Mateo County212Closure PermanentState record
Genentech, Inc.Takes effect Jul 29, 2026San Mateo County103Layoff PermanentState record

All layoff notices in the state

Employers hiring most in San Mateo County

Employers with the most open professional roles in this county’s cities. The county is taken from each job’s city, so roles with no city are not counted.

  1. Roblox234 open roles
  2. Zoox173 open roles
  3. Snowflake116 open roles
  4. Skydio68 open roles
  5. 1X Technologies66 open roles
  6. Fireworks AI58 open roles
  7. Sony Interactive Entertainment53 open roles
  8. Verkada45 open roles
  9. Corcept Therapeutics43 open roles
  10. SB Energy42 open roles

Largest employers headquartered in San Mateo County

Employee counts with a year are published figures (Wikidata). Other sizes are estimates from our company directory, not payroll counts.

Colleges in San Mateo County

Colleges in San Mateo County
CollegeCityTypeStudents
Alder Graduate School of EducationRedwood CityPrivate nonprofit 4-yearUnder 1,000
Menlo CollegeAthertonPrivate nonprofit 4-yearUnder 1,000
Notre Dame de Namur UniversityBelmontPrivate nonprofit 4-yearUnder 1,000

Job fairs and business events in San Mateo County

Hiring events, career workshops and business events in and around San Mateo County.

Conferences in San Mateo County

Industry conferences and trade shows held in San Mateo County. 3 with dates announced.

  • ODSC AI West

    Oct 27 to Oct 29, 2026 · Burlingame, CA

    Free expo floor; session passes $99 to $1,399. Expo pass free by application or $99 guaranteed; in-person from $699 (Learn) to…

  • Women's Venture Capital Summit

    Feb 1 to Feb 3, 2027 · Half Moon Bay, CA

    Paid ticket. Feb 1-3, 2027, Ritz-Carlton Half Moon Bay. Price shown at 'Buy your ticket' checkout; allocators welcome.

  • SaaStr Annual

    May 11 to May 12, 2027 · San Mateo, CA

    Paid ticket. May 11-12, 2027, San Mateo County Event Center. Ticket prices on the buy-tickets page (not shown on home page).

    Open call for speakers

All conferences

Workforce development and job centers

The public workforce board and American Job Centers serving San Mateo County. They offer free help with job search, training and filing for benefits.

Cities in San Mateo County

Other California counties

All of California

Laid off or looking for work in San Mateo County?

See what to do first and the jobs open near you.

See your options after a layoff

Sources: Census Bureau and BLS (county unemployment is not seasonally adjusted); WARN notices from California’s published record; job counts from our live job board; IPEDS for colleges; CareerOneStop for workforce boards and job centers.