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Assessor's Office

Property Value Assessment Inquiry: Disclaimer

Current and prior year property assessment information is available online. You may search by address, Assessor Parcel Number (APN), Assessor Account Number (AAN), CF/Boat Number, or FAA/Plane Number.

(You can check your most recent tax bill or correspondence from our office to get the account number for your business, watercraft, or aircraft).


This service has been provided to allow easy access to San Joaquin County Assessor information. The sole purpose of the information is for the assessment and collection of County property taxes. County makes no representation or warranty, express or implied, about the completeness, accuracy, reliability or authenticity of the information. Therefore, the information should not be relied upon to determine the legal ownership of any specific parcel(s), nor to facilitate any real property transaction(s) between private parties. County is not liable for any loss or damage whatsoever arising from or in connection with the use of or reliance upon this information.