Advancing Sustainability in San Mateo County
We are committed to building a sustainable community that fulfills the needs of the present and future.
Notice: San Mateo County Energy Survey
If you have received a letter via mail inviting you to participate in an energy study, please be advised that this is a legitimate research project. We are working in partnership with ReconMR (Reconnaissance Market Research) to gather vital data on energy sources and usage within our region.
If you encounter any technical issues while trying to access the survey, please reach out to Blake Sweeney at ReconMR. Email: blake.sweeney@reconmr.com
Featured Initiatives
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The Latest News & Events
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The County of San Mateo Sustainability Department is hosting a free tire recycling drop-off event for San Mateo County residents. There is a limit of 9 passenger or light truck tires per vehicle, as required by state law. Tires accepted at this event must be size R19.5 or smaller, with or without rims. Please ensure the tires are deflated. Tires from commercial, auto repair, and/or salvage businesses will not be accepted.
- Location: 1 Library Ave, Millbrae, CA 94030
- Date: August 22, 2026
- Time: 10:00 AM – 2:00 PM
- Collector: San Jose Conservation Corps
Questions?
- Call 888-442-2666
Residents must provide proof of residency in San Mateo County (e.g., driver’s license, utility bill, garbage collection bill, etc.).
For larger truck tires (tractor, truck etc.) contact the Sustainability Department at 888-442-2666 for recycling location information or visit www.recyclestuff.org.
2026 Earth Month Events
Youth Climate Ambassadors Graduation & Community…
How King Tides Help Us Prepare for the Future
Get Involved
Help us build innovative solutions that address today’s changing environment while solving for a sustainable future.