County of San Mateo

We represent nearly 1,900 workers at County of San Mateo.

NewsMeetings & EventsChapter LeadershipContract


Localwide News


Are you getting SEIU 521 union news in your mailbox?
If not sign up for email and/or text updates.

For text messaging updates only, simply text 521SanMateo to 787753 to subscribe †.

† SEIU Local 521 will never charge you for text messages, however carrier message and data rates may apply, depending on your wireless carrier and service plan. Text STOP to 787753 to unsubscribe, and HELP for more information. Periodic updates, up to 3 per week.

Extra Help Workers ONLY:
San Mateo County workers: Join the Budget Watchdogs
Help keep San Mateo County executives’ spending transparent and accountable by joining the 521 Budget Watchdogs.

Chapter Meetings & Events

January 22-25, 2018

SEIU member meetings and officer nominations

Your worksite organizers will be coming to you January 22-25 to give you info and hear your feedback on several topics that affect you, including:

  • Chapter Officer Nominations
  • Know your Rights (RTW)
  • Upcoming bargaining
  • Meet your organizer

Download and print the schedule (PDF)

Download and print the nomination form (PDF)


San Mateo County Sheriff’s Dept Membership Meeting

Date: Wednesday, January 24

Time: 10:00 – 11:00am

Location: 555 County Center, 4th Floor, Suite 413, Conference Room

Stop by during your break and join SEIU organizer Sandra Floyd as she answers your questions about issues that matter to you, including upcoming negotiations, member involvement & education, and more.



COPE Meeting
2nd Thursday of the month, 5:30 p.m. at Redwood City Union Hall

Leadership Council Meeting
Third Tuesday of the month, 5:30 p.m., Redwood City Union Hall

Steward Council Meeting
First Tuesday of the month, 5:45 p.m.,  Redwood City Union Hall
First Tuesday of the month, 11:45 a.m., Redwood City Union Hall

Steward Workshops
Sign up online now

Chapter Leadership

Chapter Officers

  • Elizabeth Kimmel, South Vice Chair, Information Services Dept.
  • Louise Alioto-Perez, Chapter Chair, Health System
  • Leah Taylor, Chapter Secretary, Revenue Services
  • Eileen Browning, Chapter Chief Steward
  • Vacant, Asst. Chapter Chief Steward
  • Vacant, North Vice Chair
  • Vacant, Central Vice Chair

Steward List
San Mateo County Steward List March 2017

Chapter Contracts & Bylaws

County of San Mateo Contract – 2014 – 2018 (PDF-Searchable)
County of San Mateo – EXTRA HELP Contract – 2016-2018 (PDF)
County of San Mateo Bylaws (PDF)

Chapter Archive

Comments are closed.