Whatcom County Property Tax Rate — Washington 2026
In Whatcom County, Washington, homeowners pay a median annual property tax of $3,819 on a median home value of $536,100, resulting in an effective property tax rate of 0.71%. This rate is 0.13% lower than the Washington state average (0.84%) and 0.20% lower than the national average (0.91%).
How Whatcom County Compares
Homeowners in Whatcom County enjoy a relatively low property tax burden compared to both the Washington state average and the national average.
Property Tax Calculator for Whatcom County
Enter your home’s estimated market value to calculate your approximate annual property tax in Whatcom County, Washington.
This estimate uses the effective tax rate of 0.71% based on ACS data. Actual taxes may differ based on local assessments, exemptions, and levies.
Housing Breakdown
Property Tax Details for Whatcom County, Washington
The median property tax paid by homeowners in Whatcom County is $3,819 per year. Based on a median home value of $536,100, this translates to an effective property tax rate of 0.71%.
For context, the statewide median property tax in Washington is $4,361 with an effective rate of 0.84%, while the national average effective rate stands at 0.91%. Whatcom County’s effective rate is 0.13% lower than the Washington state average (0.84%).
Of the 92,411 housing units in Whatcom County, approximately 63.53% are owner-occupied and 36.47% are renter-occupied. Homeownership rates can influence local tax policy, as communities with higher ownership rates often see more voter engagement on property tax issues.
Important: The data on this page is for informational purposes only and should not be used as tax advice. Actual property taxes depend on your property’s assessed value, local millage rates, and any applicable exemptions. Contact your county assessor’s office for precise tax information.