The Assessor’s office can update the mailing address we have listed on your property file. This this is the address where the office valuation change notice is sent. Updating your mailing address with the Assessor’s Office will also update your address for Treasurer’s office property tax statements.
Updating your mailing address will not result in a mailing address change with other county offices such as Elections, Auditor, and others.
You can update your mailing address by:
Please send an email to assessor@co.whatcom.wa.us with the following information:
Please call us at 360-778-5050 and have your parcel, geo ID, or property ID number(s) ready.
We recommend notifying us for a mailing address change by email or phone. In office visits currently require an appointment that needs to be scheduled ahead of time by emailing or calling us.