Sonoma County Flood Maps

Search for Sonoma County CA flood maps. Flood maps include information on flood zones, flood hazards, flood insurance rates, FEMA flood plans, topography, soil composition, drainage patterns, and more.


Assessors in Sonoma County California are charged with determining the value of taxable property within a county or local area. These property value assessments are used to levy property taxes. In addition to tax assessment, assessors maintain detailed county and local maps that show parcel boundaries and buildings, including flood maps. These Sonoma County flood maps show flood zones, flood damage, topography, and drainage patterns, which can impact property values. Sonoma County Assessors may make flood maps available on their websites.

Sonoma County Assessor's Office Santa Rosa CA 585 Fiscal Drive 95403 707-565-1888


Building Departments in Sonoma County California ensure the construction of safe buildings by creating and enforcing building codes. As part of this process, Sonoma County Building Departments use flood maps to establish standards for building construction and resistance to natural disasters. Many maintain and evaluate flood maps, which include information on Sonoma County flood zones, flood hazards, topography, soil composition, and flood drainage patterns. These maps may also include information on building codes and regulations related to flooding. These flood maps may be available online through the Building Department.

Cloverdale Planning Department Cloverdale CA 126 North Cloverdale Boulevard 95425 707-894-1701

Cotati Building Department Cotati CA 201 West Sierra Avenue 94931 707-665-3632

Healdsburg Building Department, Planning, Zoning and Permits Healdsburg CA 435 Allan Court 95448 707-431-3346

Petaluma City Building Department Petaluma CA 11 English Street 94952 707-778-4302

Petaluma City Zoning and Permits Petaluma CA 11 English St 94952 707-778-4301

Rohnert Park Building Department Rohnert Park CA 130 Avram Avenue 94928 707-588-2239

Rohnert Park City Planning Department Rohnert Park CA 130 Avram Avenue 94928 707-588-2236

Santa Rosa Planning Department Santa Rosa CA 100 Santa Rosa Avenue 95404 707-543-3265

Sebastopol Planning Department Sebastopol CA 714 Johnson Street 95472 707-823-6167

Sonoma County Permits Santa Rosa CA 2550 Ventura Avenue 95403 707-565-1900

Sonoma County Planning Department Santa Rosa CA 475 Aviation Boulevard 95403 707-565-6680

Windsor Planning and Zoning Department Windsor CA 9291 Old Redwood Highway 95492 707-838-1021


Clerks in Sonoma County California keep public records for a county or local government, including a number of different types of documents. As part of their duties, Clerks maintain detailed maps, including Sonoma County flood maps. These maps contain flood zone information, flood hazards, topography, rivers, lakes, and other bodies of water, as well as other flood-related information. Clerks may also keep Sonoma County historical flood maps. These flood maps may be available through the Clerk's website.

Petaluma City Clerk Petaluma CA 11 English Street 94952 707-778-4360

Rohnert Park City Clerk Rohnert Park CA 130 Avram Avenue 94928 707-588-2227

Santa Rosa City Clerk Santa Rosa CA 100 Santa Rosa Avenue 95404 707-543-3016

Santa Rosa County Clerk Santa Rosa CA 3200 County Center Drive 95403 707-565-3700

Sonoma County Clerk Santa Rosa CA 2300 County Center Drive 95403 707-565-3800

Windsor Town Clerk Windsor CA 9291 Old Redwood Highway 95492 707-838-5311


Archives in Sonoma County California collect and store documents and other records that have historic value. Most archives also contain local Sonoma County maps, including flood maps. These flood maps include Sonoma County flood zones, topography, and soil composition. They may also show drainage patterns and flood hazards. Archives may also have historical flood maps that show major floods from the past as well as Sonoma County flood plan improvements. Many archives are housed within libraries, and archives may provide online access to their flood map collections.

Rohnert Park Report Records Archive Rohnert Park CA 500 City Center Drive 94928 707-584-2600


Emergency Services in Sonoma County California manage emergency preparations, responses, and recovery at different levels of government. They may handle natural disasters, severe weather incidents, and a number of other emergency situations. As part of their responsibility for preparedness, Emergency Services departments often maintain Sonoma County flood maps, including flood zones, flood insurance rates, FEMA flood information, and flood hazards. The maps also show water flow and drainage patterns, and may contain emergency flood response information. Sonoma County flood maps may be available online through Emergency Services departments.

Sonoma County Emergency Services Santa Rosa CA 3322 Chanate Road 95404 707-576-8181


Recorders of Deeds in Sonoma County California ensure the accuracy of property and land records by maintaining real estate ownership documents. In addition to property records, Recorders of Deeds also have detailed county and local maps that show property lines and building information, including flood maps. These flood maps show flood zones, topography, soil composition, and flood hazards, as well as other information related to Sonoma County floods. Sonoma County Recorders of Deeds may make flood maps available on their websites.

Sonoma County Recorder's Office Santa Rosa CA 585 Fiscal Drive 95403 707-565-2651