Sonoma County GIS Portal

Search for Sonoma County CA GIS maps. A GIS map search can provide information like county maps, town maps, city maps, local maps, property maps, parcel maps, plat maps, public property, property tax assessments, flood zones, zoning boundaries, geographic information, historical maps, and property tax information.


Sonoma County Assessor Offices are charged with determining the value of taxable property in their county or local area in order to calculate Sonoma County property taxes. In addition to property values, Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) maps. These Sonoma County GIS maps can show public property, parks, property divisions, and roads, as well as property assessments and property taxes in Sonoma County California. These maps can also include place names, bodies of water, flood zones, property zones, and other geographic information. Some Assessors may keep historic GIS maps that include historic property tax assessments. These maps may be available on the Sonoma County Assessor Office website.

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


Sonoma County Town and City Halls provide municipal services for their town or city, including preserving vital records and maintaining records on their jurisdiction such as Sonoma County GIS maps. The GIS maps at a Sonoma County Town or City Hall can include property boundaries, public property, unclaimed parcels, and roads, as well as appraisal values for properties and property tax assessments in Sonoma County California. These GIS maps may also show population information, place names, zoning boundaries, bodies of water, flood zones, and other geographic information. Some Town and City Halls also have historical maps of their area. These maps are often available to the public on the Sonoma County Town and City Hall website.

Cloverdale City Hall Cloverdale CA 124 North Cloverdale Boulevard 95425 707-894-2521

Cotati City Hall Cotati CA 201 West Sierra Avenue 94931 707-792-4600

Healdsburg City Hall Healdsburg CA 401 Grove Street 95448 707-431-3300

Petaluma City Hall Petaluma CA 11 English Street 94952 707-778-4362

Rohnert Park City Hall Rohnert Park CA 130 Avram Avenue 94928 707-588-2200

Santa Rosa City Hall Santa Rosa CA 100 Santa Rosa Avenue 95404 707-543-3010

Sebastopol City Hall Sebastopol CA 7120 Bodega Avenue 95472 707-823-7865

Sonoma City Hall Sonoma CA 1 The Plaza 95476 707-938-3681


Sonoma County Clerk Offices maintain public records for a county or local government, which includes GIS maps. These maps provide detailed information on the area, including Sonoma County property maps that show boundaries, public property, property divisions, and in some cases, population information in Sonoma County California. They may also include property value assessments and property tax rates. Sonoma County GIS maps can show place names, bodies of water, zoning information, flood zones, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations, and these maps are often available online through the Clerk Office 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


Sonoma County Recorders of Deeds keep real estate records to ensure the accuracy of property and land records. In addition to deeds, Recorders of Deeds also have detailed county and local maps, including Sonoma County GIS maps that show property lines, building information, public property, unclaimed parcels, as well as property value assessments and property tax information. These GIS maps may also include place names, zoning boundaries, bodies of water, flood zones, and other geographic information in Sonoma County California. The Recorder of Deeds may also have historic GIS maps. These maps are often available on the Sonoma County Recorder of Deeds website.

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