Island County, Washington Property Taxes
The median homeowner in Island County pays $3,765 a year in real estate taxes, an effective rate of 0.7% on the county's $535,300 median home, per the Census Bureau's American Community Survey. That is rank 31 of 39 Washington counties.
Estimated annual property tax by home value
| Home value | Estimated annual tax at 0.7% | Per month |
|---|---|---|
| $150,000 | $1,050 | $88 |
| $200,000 | $1,400 | $117 |
| $250,000 | $1,750 | $146 |
| $300,000 | $2,100 | $175 |
| $350,000 | $2,450 | $204 |
| $400,000 | $2,800 | $233 |
| $450,000 | $3,150 | $263 |
| $500,000 | $3,500 | $292 |
| $600,000 | $4,200 | $350 |
| $700,000 | $4,900 | $408 |
| $800,000 | $5,600 | $467 |
| $1,000,000 | $7,000 | $583 |
The effective rate is the median tax paid divided by the median home value; a specific home's bill depends on its assessed value, its taxing districts and any exemptions.
With and without a mortgage
Homeowners with a mortgage in Island County report a median tax of $3,708; those who own outright report $3,873. Mortgaged homes tend to be newer purchases assessed at higher values.
Frequently asked questions
How much is property tax in Island County?
The median Island County homeowner pays $3,765 a year, which is 0.7% of the county's $535,300 median home value, per the Census Bureau's American Community Survey (2019 to 2023 five-year estimates). Owners with a mortgage report a median of $3,708; owners without one $3,873.
What would the property tax be on a $400,000 home in Island County?
At the county's effective rate of 0.7%, about $2,800 a year. The actual bill depends on the assessed value, the taxing districts the home sits in and any homestead exemption, so use this as an estimate and check the county assessor's rate for the address.
How does Island County compare with the rest of Washington?
Island County ranks 31 of 39 Washington counties by effective rate (1 = highest). The Washington county index on this site lists every county's median tax and rate.
Sources
- U.S. Census Bureau, ACS 2019-2023 five-year estimates, table B25103 (median real estate taxes paid)
- U.S. Census Bureau, ACS 2019-2023 five-year estimates, table B25077 (median value of owner-occupied housing units)
Figures are computed from the documents above and rounded to the dollar. All sources.
Property taxes in every Washington county → Island County home buyer guide →
General information, not tax advice. Medians describe the county, not any one property.
Island County overview