Contact Us

Whatcom County Treasurer

Office hours are Monday-Friday 8:30am to 4:30pm, including the lunch hour. However, for passport services we stop processing applications at 4:00pm. Please see our observed holiday schedule for days that we are closed.

By Telephone:

800.676.6757 (Toll-free from Point Roberts only)

By Fax:


By E-mail:

By Mail (Payments Only):

PO Box 34873
Seattle, WA 98124-1873

By Mail (Other than Payments):

PO Box 5268
Bellingham, WA 98227-5268

Physical Address (in the County Courthouse):

311 Grand Ave, Suite 104
Bellingham, WA 98225