Coastal Cleanup Day
Coastal Cleanup Day is an annual waterway and land cleanup held in September. It’s California’s largest volunteer event and brings community awareness to protecting our marine environment from litter.
San Mateo County Environmental Health Services coordinates the event in partnership with the California Coastal Commission, the Ocean Conservancy, and many local partners.
Sign up for reminder emails about Coastal Cleanup Day 2025.
Coastal Cleanup 2024 Results
- 3,986 volunteers participated in the event
- 25,394 lbs. of trash and recyclables were picked up
- 206 miles cleaned
- 2024 Coastal Cleanup Results and Photos
Thank you to everyone who came out and participated in Coastal Cleanup 2024 to help protect our bay and ocean from litter pollution. The County is a much cleaner and healthier place today because of all your work.
If you weren’t able to volunteer for Coastal Cleanup 2024, you can still participate in a neighborhood cleanup, or meet with a local organization to pick up litter in San Mateo County year-round.
Thank You Statewide and Local Partners!
- Bair Island Aquatic Center
- BayLands FrontRunners
- California Coastal Commission
- California Department of Boating & Waterways
- California State Parks
- California State Parks Foundation
- City of Belmont
- City of Brisbane
- City of Burlingame
- City of Millbrae
- City of Redwood City
- City of San Bruno
- City of San Mateo
- City of South San Francisco
- Coastside Land Trust
- Crystal Geyser
- Familias al Aire Libre
- Gilead
- Golden Gate Regional Center
- Grassroots Ecology
- Half Moon Bay Rotary Club
- Marina Lagoon Action Commitee
- Ocean Conservancy
- Oracle
- Oyster Point Dragons
- Pacific Beach Coalition
- Puente de la Costa Sur
- Redwood High School
- San Francisco Opera
- San Gregorio Environmental Resource Center
- San Mateo County Harbor District
- San Mateo County Office of Sustainability
- San Mateo County Parks
- Sea Hugger
- Sequoia Yacht Club
- Surfrider Foundation
- The Club at Westpoint