California · FIPS 06097 · County seat: Santa Rosa
Sonoma County, CA GIS & Parcel Viewer
Sonoma County, California parcel data lives on Permit and Parcel Search for Sonoma County. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the Sonoma County parcel map ↗
Opens parcelsearch.permitsonoma.org in a new tab. We link out and never embed or copy parcel data.
Sonoma County at a glance
| Official map | Permit and Parcel Search for Sonoma County |
|---|---|
| Type | County-run map |
| Website | parcelsearch.permitsonoma.org |
| Access | Free, no login (checked Oct 2026) |
| County seat | Santa Rosa |
| Population | 481,812 (2023 Census Bureau estimate) |
| Land area | 1,576 sq mi |
| FIPS code | 06097 |
Where the parcel data comes from
This map is published by or for Sonoma County itself, so it reflects the local parcel layer rather than a third-party copy. Our October 2026 check found the map open to the public, with no account or payment needed.
Finding a property on this map
- Open the official link in a new tab.
- Accept any disclaimer, then look for a search box that takes street addresses, owners or parcel IDs.
- Zoom in and click a parcel to see its details.
- Use the map's layer controls to add aerials or other layers if they're offered.
Rural addresses don't always geocode well. When that happens, zoom in by hand and click the parcel, or search by owner name.
The county in brief
Sonoma County had an estimated 481,812 residents in 2023, according to the Census Bureau. With about 1,576 square miles of land, that works out to roughly 306 people per square mile. By population it ranks 17th of 58 counties in California. Census maps also count about 192 square miles of water inside its boundary. The county seat is Santa Rosa.
Neighboring counties
If the property sits near a county line, the parcel may belong to a neighbor. These counties border Sonoma County:
- Contra Costa County
- Lake County (state list)
- Marin County
- Mendocino County (state list)
- Napa County
- Solano County
Maps vs. surveys
Online parcel lines are drawn for tax and planning use. They can be off by several feet, so use a recorded plat or a licensed surveyor for fences, setbacks or a sale.