98850 Property Tax Rate

Property owners in ZIP code 98850 (Rock Island, Washington) pay a median of $2,596/year in property taxes on homes valued at $331,100. This translates to an effective tax rate of 0.78%, which is near the Washington state average of 0.77%.

The monthly property tax burden for a median-valued home in 98850 is approximately $216, which factors into escrow payments on mortgages. This ZIP code is located within Douglas County. This is $996 less than the Washington average of $3,592/year.

Compared to similar ZIP codes in Washington, 98850 has higher property taxes. ZIP codes with similar effective rates include 98074 (0.78%) and 98255 (0.78%).

In Rock Island, property taxes represent approximately 3.4% of the median household income of $76,250, providing context for the relative tax burden on homeowners in this area.

Washington has no state income tax and does not reassess property at sale — your assessed value is fixed until substantial improvements are made or the county initiates a revaluation. Douglas County offers a Senior/Disabled Exemption Program (income-based, for owners 61+ or permanently disabled) and a Property Tax Reduction Program for qualifying low-income residents — submit applications to the Douglas County Assessor before the deadline. Contact the Douglas County Assessor within 30 days of purchase to confirm your assessment and verify all relief program eligibility options available to you.