Property Tax in Whatcom County
via TaxByCounty
Whatcom County taxes slightly below national median
Whatcom County's effective tax rate of 0.712% sits just below the national median of 0.85%. However, with a median home value of $536,100, residents pay $3,819 annually—42% more than the national median property tax of $2,690.
Moderate taxes on high home values
Whatcom County's 0.712% effective rate falls below the Washington state average of 0.761%, positioning it as a relatively moderate-tax county. Yet at $3,819 in median property taxes, the county's high home values result in above-average total bills.
Lower rate than Walla Walla, higher than Yakima
Whatcom County's 0.712% rate undercuts Walla Walla (0.901%) and Yakima (0.818%) but exceeds Stevens (0.654%) and Wahkiakum (0.605%). Its position reflects northwestern Washington's mixed tax landscape.
What you'll pay on a Whatcom County home
On a median home valued at $536,100, Whatcom County residents pay approximately $3,819 per year in property taxes. This holds relatively steady whether the home carries a mortgage or is owned free and clear.
Review your assessment for accuracy
Whatcom County homeowners should verify their assessments match comparable local sales, especially in appreciating markets. Challenging an overvalued assessment through the county's appeal process could save hundreds annually.