Sonoma County GIS Data (California)

Search for Sonoma County, CA GIS data. A GIS data search can provide information on GIS maps, property lines, county lines, city lines, public property, elevations, flood zones, school boundaries, earthquake zones, property appraisal values, erosion, water pollutants, topography, soil composition, sewers, public utilities, building hazards, population information, demographic information, place names, public property, parks, campgrounds, trails, trail maps, historic maps, historic GIS maps, town maps, county maps, city maps, and neighborhood boundaries.


An Assessor Office is responsible for appraising the taxable property in an area in order to calculate property taxes in Sonoma County, California. As part of this job, Sonoma County Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) data. These Sonoma County GIS maps typically include property divisions, plots, buildings, property appraisal values, and property taxes. They may also include public property, parks, roads, place names, bodies of water, and other local geographical information, as well as flood zones, county zone lines, and school boundaries. These maps can be useful for a number of reasons, including buying and selling property. Assessors may provide online access to their Sonoma County GIS data on their websites.

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


A Town or City Hall provides municipal services for their town or city, including keeping vital records and maintaining documents on their jurisdiction such as maps with GIS data in Sonoma County, California. These GIS maps typically include property boundaries, real estate appraisal values, Sonoma County property tax assessments, public property, and unclaimed parcels. The maps may also show place names, Sonoma County zoning boundaries, bodies of water, and flood zones, as well as population and demographic information. Some Town and City Halls also maintain historical maps of their area. These maps are often available on the Town or 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


A Building Department creates and enforces building codes and zoning regulations in order to ensure the construction of safe buildings in Sonoma County, California. As part of that job, Building Departments maintain GIS data that can include Sonoma County GIS maps on the topography, elevation, soil composition, and flood zones for the local area. This information can be important for adhering to building codes and meeting zoning rules. These GIS maps may also show Sonoma County parcels, lots, subdivisions, and tracts of land, as well as sewers, public utilities, and other building hazards. GIS data may be available on the Building Department website.

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


The Army Corps of Engineers is a federal agency that provides engineering services, including managing ports and waterways, protecting against floods and storm damage, and maintaining public recreation areas in Sonoma County, California. The Army Corps of Engineers keeps Sonoma County GIS maps that show navigable waters, tributaries, water depths, bridges, and ports, as well as information on flood zones, dams, and hydroelectric plants. GIS maps of Army Corps recreation areas can include bodies of water, shelters, campgrounds, elevations, and trails. These Sonoma County maps may be available on the Army Corps of Engineers website.

Geyserville Army Corps of Engineers Geyserville CA 13005 Rockpile Road 95441 707-431-1152


A Clerk Office maintains public records for a county or local government, including GIS data in the form of maps. These GIS maps provide detailed information such as property boundaries, roads, public property, parks, and in some cases, population and demographic information. GIS data can also show Sonoma County property value assessments, property taxes, flood zones, zoning boundaries, and earthquake zones, as well as place names, bodies of water, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations. Sonoma County GIS data is often accessible 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


An Auditor Office provides oversight for government agencies, including evaluating the performance of government offices and their compliance with laws, rules, and regulations in Sonoma County, California. Auditors also investigate corruption and fraudulent activities. Auditor Offices maintain a number of records related to their local area, which can include GIS data that shows Sonoma County property boundaries, city or county lines, flood zones, earthquake zones, and property taxes. These Sonoma County maps may also provide place names, bodies of water, and other geographic information. Auditors may provide online access to their GIS maps.

Sonoma County Auditor Santa Rosa CA 585 Fiscal Drive 95403 707-565-2817


A Recorder of Deeds keeps real estate documents to ensure the accuracy of property and land records in Sonoma County, California. In addition to filing deeds that provide information on property sales and transfers, Recorders of Deeds also have detailed county and local maps, including Sonoma County GIS data. These maps can include property lines, building information, unclaimed parcels, property value assessments, and property tax information. They may also show Sonoma County place names, flood zones, zoning boundaries, neighborhood lines, bodies of water, and other geographic information. The Recorder of Deeds may provide access to GIS data on its website.

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