California · FIPS 06077 · County seat: Stockton
San Joaquin County, CA GIS & Parcel Viewer
San Joaquin County, California parcel data lives on SJC Assessment Map Viewer for San Joaquin County. Open it below in a new tab, then use the short steps on this page to find a property fast.
Open the San Joaquin County parcel map ↗
Opens sjmap.org in a new tab. We link out and never embed or copy parcel data.
Map and county facts
| Official map | SJC Assessment Map Viewer for San Joaquin County |
|---|---|
| Type | County-run map |
| Website | sjmap.org |
| Access | Free, no login (checked Oct 2026) |
| County seat | Stockton |
| Population | 800,965 (2023 Census Bureau estimate) |
| Land area | 1,392 sq mi |
| FIPS code | 06077 |
About the official source
It is a county-level map: San Joaquin County or the company it hires keeps the parcel layer up to date. Our October 2026 check found the map open to the public, with no account or payment needed.
How to use the San Joaquin County viewer
- 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.
If an address search comes up empty, try the parcel number from a tax bill or deed instead, or click the lot on the map.
The county in brief
The U.S. Census Bureau estimated San Joaquin County's population at 800,965 in 2023, spread over about 1,392 square miles of land, or roughly 575 people per square mile. That makes it number 14 out of 58 California counties by population. Its county seat is Stockton.
Neighboring counties
Parcels close to the edge of San Joaquin County can fall in the next county over. Neighboring counties:
- Alameda County
- Amador County
- Calaveras County
- Contra Costa County
- Sacramento County
- Stanislaus County (state list)
A note on accuracy
Keep in mind that a GIS parcel layer is a tax map, not a survey. For exact boundaries, look at the recorded deed and plat or hire a licensed land surveyor.