How many employees work at County of San Mateo?
County of San Mateo (California) has 3,918 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 1.8%.
Data source: Revelio Labs Coverage: Global workforce Latest update: September 2025
About County of San Mateo
The County of San Mateo provides for the health and welfare of all people within its borders and serves as the local government for the unincorporated areas. Voters elect a five-member Board of Supervisors and six additional County officials: the Assessor-County Clerk-Recorder/Chief Elections Officer, District Attorney, Controller, Coroner, Sheriff and Treasurer-Tax Collector. We invite you to explore our career opportunities at https://jobs.smcgov.org/
As of September 2025
County of San Mateo
workforce metrics
Headcount
3.9k
Avg. Salary
$120.3k
Tenure
6.1yr
Growth Rate
1.8%
Hiring Rate
Attrition Rate
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Employee Headcount
Interactive chart of County of San Mateo annual worldwide employee count from 2023 to 2025.
- County of San Mateo total number of employees in 2025 was 3,937.815, a 1.8% increase from 2024.
- County of San Mateo total number of employees in 2024 was 3,864.454, a 2.8% increase from 2023.
- County of San Mateo total number of employees in 2023 was 3,757.709, a 1.9% increase from 2022.
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Employee Geographic Breakdown
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Active Job Postings
Interactive chart of County of San Mateo annual active job postings from 2023 to 2025.
- County of San Mateo active job postings in 2025 was 813, a 16.8% decline from 2024.
- County of San Mateo active job postings in 2024 was 682, a 17.6% decline from 2023.
- County of San Mateo active job postings in 2023 was 814, a 4.3% increase from 2022.
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Employee Sentiment
Sentiment Topics
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