Contact Us

The Sonoma County Assessor's Office is open Monday through Friday, 8 am to 5 pm
Please note our holiday schedule below.
Si necesita assistencia en Español favor de llamar a la oficina 707-565-6075 entre las 8:00 am y 5:00 pm de Lunes a Jueves.
Email
Bullet Janice Atkinson theassessor@sonoma-county.org
Bullet Business Property eFiling BusinessProperty@sonoma-county.org
Phone Numbers
Bullet 707-565-1888 Assessor Main Office: Information
Bullet 707-565-6075 Información en Español (Lunes a Jueves)
Bullet 707-565-3317 Assessor Main Office: Fax
Bullet 800-244-1034 Assessor Main Office: Toll Free in Sonoma County
Bullet 707-565-1330 Assessor Business Property: Information
Bullet 800-797-4707 Assessor Business Property: Toll Free in Sonoma County
Bullet 707-565-1886 Homeowner Exemptions
Bullet 707-565-2861 Aircraft Assessments
Bullet 707-565-2844 Boat Assessments
Bullet 707-565-1888 Real Estate Assessments
2007 Holidays Observed: Offices Closed
Bullet Mon, Jan 1 New Year's Day
Bullet Mon, Jan 15 Martin Luther King Day
Bullet Mon, Feb 12 Lincoln's Birthday
Bullet Mon, Feb 19 Presidents' Day
Bullet Mon, May 28 Memorial Day
Bullet Wed, Jul 4 Independence Day
Bullet Mon, Sep 3 Labor Day
Bullet Mon, Nov 12 Veteran's Day
Bullet Thu, Nov 22 Thanksgiving Day
Bullet Fri, Nov 23 Day after Thanksgiving
Bullet Tue, Dec 25 Christmas Day
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Sonoma County Assessor's Office
Santa Rosa, California