311 Grand Ave
Suite 104
Bellingham, WA 98225
360.778.5160
360.778.5161
Link: Treasurer Page
By Mail (Payments Only):
Whatcom County Treasurer
PO Box 34873
Seattle, WA 98124-1873
By Mail (Other than Payments):
Whatcom County Treasurer
PO Box 5268
Bellingham, WA 98227-5268