[Washington Assessors]

Whatcom County, Washington - Assessor's Office

The Whatcom County Assessor is responsible for appraising real estate and assessing a property tax on properties located in Whatcom County, Washington. You can contact the Whatcom County Assessor for:

  • Information on your property's tax assessment
  • Reporting upgrades or improvements
  • Your property tax bill
  • Paying your property tax
  • Appealing your property tax appraisal
  • Checking the Whatcom County property tax due date

311 Grand AveThe Whatcom County Assessor's Office is located in Bellingham, Washington. Bellingham is the county seat of Whatcom County, where most local government offices are located. The assessor's office is located in the same building as the Whatcom County Courthouse, at 311 Grand Avenue.

Whatcom County Assessor Contact Information

Additional Whatcom County Information

Whatcom County Assessor's Office Services

There are three major roles involved in administering property taxes - Tax Assessor, Property Appraiser, and Tax Collector. Note that in some counties, one or more of these roles may be held by the same individual or office. For example, the Whatcom County Tax Assessor may also serve as the Whatcom County Tax Appraiser.

  1. The Whatcom County Tax Assessor is responsible for setting property tax rates and collecting owed property tax on real estate located in Whatcom County.
  2. The Whatcom County Property Appraiser is responsible for determining the taxable value of each piece of real estate, which the Tax Assessor will use to determine the owed property tax.
  3. The Whatcom County Tax Collector is responsible for collecting property tax from property owners. They issue yearly tax bills to all property owners in Whatcom County, and work with the sheriff's office to foreclose on properties with delinquent taxes.

When contacting Whatcom County about your property taxes, make sure that you are contacting the correct office. You can call the Whatcom County Tax Assessor's Office for assistance at 360-676-6790. Remember to have your property's Tax ID Number or Parcel Number available when you call!

Please call the assessor's office in Bellingham before you send documents or if you need to schedule a meeting. If you have general questions, you can call the Whatcom County Courthouse at 360-676-6700.


Learn More

Find the tax assessor for a different Washington county

Find property records for Whatcom County

The median property tax in Whatcom County, Washington is $2,173.00


washington Property Tax Data All of the Whatcom County information on this page has been verified and checked for accuracy.
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