Our watersheds define more than habitat, they define who we are and where we live. They influence rainfall patterns, the types of trees and plants we see, and how we define the cities and towns of the county.

Learn about

  • How our watersheds function
  • Creeks and habitats
  • Flooding and flood protection
  • What you can do to be a steward of your watershed

Watersheds of Marin

Marin County is made up of 14  major watersheds with over 3000 miles of creeks flowing through them. Six of these watersheds contain flood control zones .

Watersheds with flood control zones have:

  • Funding from ad-valorem taxes, fees and/or assessments
  • Advisory boards
  • Projects and maintenance

Watersheds with flood control zones

Watersheds without flood control zones

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