Home and mortgage
Whatcom County, WA Property Tax Calculator
Whatcom County homeowners pay a median $4,087 a year in property tax, 0.70% of a median $585,800 home: below Washington's 0.81% and the national 0.94%.
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Property tax in Whatcom County by home value, at 0.70%
| Home value | A year | A month |
|---|---|---|
| $290,000 | $2,024 | $169 |
| $440,000 | $3,071 | $256 |
| $590,000 | $4,118 | $343 |
| $880,000 | $6,142 | $512 |
| $1,170,000 | $8,167 | $681 |
Whatcom County against Washington and the US
| Effective rate | Median tax | Median home value | Median household income | |
|---|---|---|---|---|
| Whatcom County | 0.70% | $4,087 | $585,800 | $81,784 |
| Washington | 0.81% | $4,556 | $564,600 | $98,141 |
| United States | 0.94% | $3,119 | $332,700 | $80,734 |
How this calculator works
Median real estate taxes paid ÷ median home value in Whatcom County, from the Census Bureau's American Community Survey 2020–2024 5-year estimates. The calculator starts at the county's median home value and rate.
Questions people ask
What is the property tax rate in Whatcom County?
The effective rate is 0.70%: a median $4,087 a year on a median $585,800 home. That's the 19th highest of the 21 Washington counties we cover.
How much is property tax on a $400,000 house in Whatcom County?
About $2,792 a year, $233 a month, at the county's effective rate, before any exemption.
How does Whatcom County compare with the rest of Washington?
Its rate is below the state's 0.81%. Across Washington, covered counties range from 0.67% to 0.91%.
How do I lower my Whatcom County property tax?
Apply for every exemption you qualify for, such as a homestead exemption, and appeal your assessment if it is higher than comparable homes sold nearby; the county assessor explains the deadlines.
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Sources
Updated by the RateHerald team. The maths is tested against worked examples; report a problem.