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Measure K, San Mateo County

Investing your tax dollars to make a big difference in San Mateo County

Measure K is a half-cent countywide sales tax approved by voters in 2016 and extended through 2043. It funds local programs for children, families and seniors, housing and homelessness, and emergency preparedness.

Find a funded programSee the financials

$1.04Bin Measure K revenue since FY 2012-13

Oversight Committee, November 5, 2026

The Measure K Oversight Committee met on November 5, 2026 at Manzanita Hall, 500 County Center, Redwood City. The agenda packet is posted.

Agendas and reports

Measure K at a glance

  • $1.04B in revenue received from FY 2012-13 through FY 2023-24
  • $787M spent on local programs and facilities over the same period
  • 66 programs and projects currently funded, listed by agency
  • 2043 the year the voter-approved half-cent sales tax ends

Three Board priority areas

In October 2023, the Board of Supervisors set three priority areas for Measure K funding: children, families and seniors; emergency preparedness; and housing and homelessness. A community needs assessment led to a Notice of Funding Opportunity, and the Board began approving projects in summer 2024.

Funded programs across the three areas

Two current programs from each funding area.

  • Housing & Homelessness

    Affordable Housing Fund

    Agency: Department of Housing

    This funding supports the development and preservation of affordable housing in San Mateo County and is leveraged with other private and public sources.

  • Emergency Preparedness

    AI Software

    Agency: Department of Emergency Management

    Ladris is creating an AI-driven situational awareness tools that enhances risk evaluation and mitigation specific to San Mateo County. The CORE software improves early detection through pattern recognition, enabling better resource deployment, incident management, and targeted alert and warning capabilities for at-risk areas. Future enhancements include automated grant writing, community-accessible risk visualizations, and AI-assisted disaster plan updates to strengthen overall resilience.

  • Children, Families, and Seniors

    At-Risk Foster Youth Services

    Agency: Human Services Agency

    Measure K-funded educational services support at-risk foster youth in San Mateo County, helping them graduate high school at rates comparable to the general public. The program provides personalized case management, including individualized education plans, resources, and ongoing support to help foster youth succeed academically. By working closely with educators and community partners, the program helps foster youth overcome challenges and achieve their educational goals.

  • Housing & Homelessness

    BitFocus Clarity Human Services

    Agency: Human Services Agency

    Payment of Licenses for the system (BitFocus) which supplies Clarity, our HUD-mandated HMIS system and the system we use for Our Count and all homeless data collection and reporting.

  • Emergency Preparedness

    Alert and Warning Coordinator

    Agency: Department of Emergency Management

    The Alert and Warning Coordinator is responsible for integrating the several current alert and warning platforms into a single coherent, and clearly communicated Alert & Warning Program. Focus area will be heavily focused on public information and communication, and researching and implementing areawide alert and warning best practices through training the dozens of public agencies currently authorized to generate public alerts to ensure consistency and compliance.

  • Children, Families, and Seniors

    Big Lift

    Agency: Human Services Agency

    The Big Lift is a collective impact effort aimed at increasing third grade reading proficiency in San Mateo County.

See all 66 funded programs

Important dates

  1. July 1, 2025

    Fiscal Year 2025-26 begins

  2. March 17, 2026

    Measure K study session, Board of Supervisors

    The Board discussed future Measure K funding and approved allocations for FY 2026-27.

  3. June 10, 2026

    Oversight Committee meeting

  4. November 5, 2026

    Oversight Committee meeting

    Manzanita Hall, 500 County Center, Redwood City.

Page last updated November 6, 2026