Sonoma County Multi-Jurisdictional Hazard Mitigation Plan - 2026 Update
Welcome to the Sonoma County Hazard Mitigation Plan (HMP) Website. This website provides project updates, resources, and links to hazard mitigation in support of the County’s Hazard Mitigation Plan (HMP).
A Hazard Mitigation Plan identifies potential hazards that a planning area is most vulnerable to, assesses risk to populations, property, and critical facilities, and includes a mitigation strategy to reduce risks. The existing 2021 Sonoma County Hazard Mitigation (HMP) is available here.
The 2026 plan update will leverage a regional approach to prepare a Multi-Jurisdictional Hazard Mitigation Plan (MJHMP) that comprises the hazard profiles, risk assessments, and mitigation strategies for multiple jurisdictions, including:
- Bodega Bay Public Utility District
- City of Cloverdale
- City of Cotati
- City of Healdsburg
- City of Petaluma
- City of Rohnert Park
- City of Santa Rosa
- City of Sebastopol
- City of Sonoma
- Cloverdale Fire Protection District
- County of Sonoma
- Gold Ridge Fire Protection District
- North Sonoma Coast Fire Protection District
- Northern Sonoma County Fire Protection District
- Rancho Adobe Fire Protection District
- Santa Rosa Junior College
- Sonoma County Ag + Open Space
- Sonoma County Fire District
- Sonoma Valley Fire District
- Sonoma Water
- Timber Cove Fire Protection District
- Town of Windsor
During the course of this planning project, county and local leaders and the community will work in tandem to identify risks, assess capabilities, and formulate a strategy to reduce disaster vulnerability.
For questions or inquiries, please reach out to hazardmitigation@sonomacounty.gov
The Multi-Jurisdictional Hazard Mitigation Draft Plan is Now Available for Public Comment!
The Sonoma County Multi-Jurisdictional Hazard Mitigation Plan (MJHMP) is a countywide effort involving 22 Sonoma County jurisdictions to identify risks from hazards and to outline strategies that reduce future disaster impacts. A formal public comment period will be held from October 20 – November 10, 2025, during which community members are invited to review the draft plan and share feedback. Your input will help ensure the plan reflects local experiences, priorities, and solutions, and will strengthen the county’s ability to secure state and federal funding for future resilience projects.
How To Review the Draft Plan
The draft volumes will be available and linked below for your review from Oct. 20th- Nov. 10th:
- Volume I
- Volume II
Explore the Sonoma County Hazard Mitigation Plan 2026 Update StoryMap to learn more about the plan, the planning process, and the hazards and risks identified across the county. Engaging with the StoryMap helps you understand the foundation of the plan and how it addresses our community’s most significant risks.
Public Meetings are being scheduled during the Public Comment period. See the Meetings calendar at the bottom of this page for upcoming events.
Comments may be submitted via email to hazardmitigation@sonomacounty.gov or be received at facilitated public meetings.
When submitting feedback, please be as specific as possible (including citing sections, pages, or maps) and include whether your feedback is for all participating jurisdictions or relevant for a specific city, town, special district or the county.
Please submit any comment by November 10, 2025 at 5:00PM. All comments, whether submitted by email or at meetings, will be considered by the Planning Partnership when revising the draft before final submission to CalOES and FEMA.
What Happens Next:
- Sonoma County and participating jurisdictions review and compile public input.
- Revisions are made as feasible; responses to comments may be documented in the final plan or appendix.
- The final plan is submitted to CalOES and FEMA for review and approval.
- Once approved, each jurisdiction formally adopts the plan (local resolution).
- The adopted plan guides mitigation investments and makes jurisdictions eligible for certain state and federal funding.
Thank you for taking the time to review and share your feedback—your input is essential to shaping a safer, more resilient Sonoma County. Together, we can build a plan that reflects the needs and priorities of our whole community.