San Mateo County, CA jobs, unemployment and layoffs

San Mateo County’s unemployment rate is 3.9%. Employers filed 10 layoff notices here in the last 12 months. 2,757 open professional jobs are in its cities.

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San Mateo County economy

  • 3.9%

    unemployment, Sep 2026

    4.1% the month before

  • 410,701

    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

Where San Mateo County ranks

Where San Mateo County placed in our monthly rankings, month by month. Each month stays online at its own address.

San Mateo County outlook: Cooling

Built from public Bureau of Labor Statistics and Census figures. It describes the area, not any one employer in it.

  • Private-sector jobs down 3.0% from 2022 to 2025
  • Population down 2.5% from 2020 to 2025
  • Unemployment 3.9%, down 0.2 points from a year ago
  • Sectors adding the most jobs: health care (+6,866 jobs), hotels & food (+3,546 jobs)
  • Sectors losing the most jobs: information (−18,948 jobs), manufacturing (−4,940 jobs)

Local job-market news

Recent headlines about layoffs, AI and jobs in San Mateo County. Each link goes to the publisher.

Learn and get funded in San Mateo County

San Mateo County layoffs

  • 10

    Layoff notices, last 12 months

  • 1,412

    workers named

    A floor: states may leave out counts

  • 8

    employers

Layoff notices filed in San Mateo County, newest first
Notice dateEmployerCity or countyWorkersTypeSource
OracleTakes 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. Roblox243 open roles
  2. Gilead Sciences200 open roles
  3. Zoox156 open roles
  4. Verkada139 open roles
  5. Snowflake114 open roles
  6. Skydio68 open roles
  7. 1X Technologies67 open roles
  8. PlayStation (Sony Interactive Entertainment)60 open roles
  9. Fireworks AI50 open roles
  10. Corcept Therapeutics39 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 non-profit 4-yearUnder 1,000
Menlo CollegeAthertonPrivate non-profit 4-yearUnder 1,000
Notre Dame de Namur UniversityBelmontPrivate non-profit 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. 4 with dates announced.

  • Humanoids Summit Silicon Valley

    Dec 1 to Dec 2, 2026 · San Mateo, CA

    Paid ticket, price not listed

  • 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.

  • HRWest

    Mar 23 to Mar 24, 2027 · South San Francisco, CA

    Ticket $399 to $999. Early-bird $399 through Jan 15 2027; $799 regular; $999 onsite.

    Open call for speakers · deadline Oct 30, 2026

  • 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

  • AI Risk Summit

    Usually August (next dates not announced) · Half Moon Bay, CA

    Ticket $1,895 to $2,195. 2026 edition: $2,195 full pass, $1,895 early rate.

  • ODSC AI West

    Usually October (next dates not announced) · 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…

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.

Laid off in California? How to file for unemployment in California (steps, weekly amount and the appeal deadline).

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); layoff notices from California’s published record; job counts from our live job board; IPEDS for colleges; CareerOneStop for workforce boards and job centers. California unemployment benefits and severance rules.

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