This page helps users handle a property search in San Joaquin County, California by pointing them to official assessment, parcel map, and recorded map resources.
For assessed values, parcel identifiers, and map-related help, the main public channel is the San Joaquin County Assessor-Recorder-County Clerk, including the Assessed Value Lookup and the SJC Assessment Map Viewer.
Assessed Value Lookup
Use the county’s search assessed value information page to access current and prior year property assessment information online. The lookup is tied to the assessment roll, which includes each property assessment, its physical description, and assessed value.
Have one of these details ready before you search:
- Address
- Assessment number
- Fee parcel number
The Assessment number may appear on a recent tax bill or correspondence from the Assessor’s Office.
- Open the Assessed Value Lookup page.
- Review and accept the Property Value Assessment Inquiry disclaimer.
- Search by address, Assessment number, or Fee Parcel number.
- Review the current or prior year assessment information returned for the property.
Assessment information is not the same as a deed or ownership guarantee. Use the appropriate Recorder-County Clerk records path when you need recorded documents or certified copies.
SJC Assessment Map Viewer
The open the SJC Assessment Map Viewer provides online access to current assessment maps and archive maps by assessment year.
Archive map sets are available for assessment years from 2006-2007 through 2025-2026, along with current maps. These maps are for assessment and county property tax collection purposes.
Do not rely on assessment maps to determine legal ownership or complete a private real estate transaction. The county states that the maps are not guaranteed for completeness, accuracy, reliability, or authenticity.
Parcel maps and Mapping Department services
San Joaquin County Assessor parcel maps are available online. Assessment maps may also be obtained from the Mapping Department over the counter, by mail, by fax, or by email during office hours. A charge applies for this service.
The GIS interactive map and parcel information are available through Community Development’s website. Use the Assessment Map Viewer when your task is focused on Assessor parcel maps, current maps, or archive assessment maps.
Mapping fees listed by the county include:
| Item | Fee |
|---|---|
| Computer screen copies | $3 |
| Building records copies | $3 |
| 8.5" x 11" map copies | $3 |
| Assessor’s Parcel Map 8.5" x 11" | $3 |
| Assessor’s Parcel Map 11" x 17" | $3 |
| Emailed map | $3 |
| Complete CD set of Assessor Parcel Maps | $60 |
Property assessment basics
The San Joaquin County Assessor-Recorder-County Clerk prepares assessments for taxable property in the county. The Assessor determines property value and assessment information used to compute the annual property tax bill.
Properties are taxed at the State mandated 1% of total assessed value. For real property, the value enrolled when property is acquired is the base year value, and it is increased each year by the California Consumer Price Index or 2%, whichever is less.
New construction, ownership changes, supplemental assessments, decline-in-value reviews, and manufactured home assessment issues are handled through the Assessor’s property information process.
GIS data and district map limits
San Joaquin County GIS provides online map applications and GIS data downloads. The District Viewer can show districts covering an area of interest, including school, fire, supervisorial, water, zoning, and permitting-related districts.
Property tax information is not available through the District Viewer. For property tax information, use the San Joaquin County Assessor instead.
GIS data downloads are exported periodically, typically twice per year, around mid-January and again in July. The latest export listed by the county occurred on January 13, 2026. More current or custom exports may be requested and may be subject to duplication fees.
Recorded documents and recorded maps
The Recorder’s Office provides public research access to recorded documents dating back to 1851. The Grantor/Grantee Index includes information from January 1, 1968, to the present.
Documents may be viewed at the Recorder’s Office, and document searching is available to the public from 8am to 4:30pm. Deeds and other official documents before January 1, 1968, are available digitally and on film.
Recorded subdivision maps, survey maps, and parcel maps of San Joaquin County dating back to 1851 are available for viewing, copying, and certification. Certified copies can be used in place of original documents for court proceedings and legal purposes.
Recorded document and map fees listed by the county include:
| Service | Fee |
|---|---|
| Self-assisted photocopy | $1 per page |
| Staff-assisted photocopy | $3 per page |
| Certification | $2 per document |
| Recorded map photocopy | $5 per copy |
| Recorded map certification | $2 per map |
Assessor and mapping contacts
Use these contacts for assessed value questions, parcel map help, Mapping Department requests, and recorded document or recorded map research.
-
Office of the Assessor, 44 North San Joaquin Street, Second Floor, Suite 230, Stockton, CA 95202
Phone: (209) 468-2630
Fax: (209) 468-0422
Office hours: 8:30-4:30 weekdays, except holidays -
Mapping Department, Office of the Assessor, 44 North San Joaquin Street, Second Floor, Suite 230, Stockton, CA 95202
Phone: (209) 468-2648
Hours: 8:30 - 4:30 weekdays, except holidays -
Office of the Recorder-County Clerk, 44 North San Joaquin Street, Second Floor, Suite 260, Stockton, CA 95202
Phone: (209) 468-3939
Fax: (209) 468-8040
Office hours: 8:00-4:30 weekdays, except holidays
Common questions
Where can I search assessed value information in San Joaquin County?
Use the county’s Assessed Value Lookup to search current and prior year property assessment information by address, Assessment number, or Fee Parcel number.
Where can I view San Joaquin County assessment maps?
Use the SJC Assessment Map Viewer to view current assessment maps and archive map sets by assessment year.
Can I use assessment maps to confirm legal ownership?
No. The county states that assessment map documents are for assessment and county property tax collection purposes and should not be relied on to determine legal ownership or complete private real property transactions.
Who should I contact if I need help with a parcel map?
Contact the Mapping Department at (209) 468-2648. The Mapping Department is located at the Office of the Assessor in Stockton.
Where can I research recorded deeds or older recorded maps?
The Recorder’s Office provides public research access to recorded documents and recorded maps dating back to 1851. Document searching is available to the public from 8am to 4:30pm.