Washington · FIPS 53029 · ACS 2020–2024
Island County, Washington property tax rate
Homeowners in Island County paid a median of $3,999 a year in real estate taxes on a median home value of $593,300 (2020–2024 survey). Taxes came to 0.66% of home value, 13% below the Washington rate of 0.75% and 30% below the U.S. rate of 0.94%.
- 0.66%Effective tax rate±0.04% margin · Washington: 0.75%
- $3,999Median tax per yearWashington: $4,556 · U.S.: $3,119
- $593,300Median home valueWashington: $564,600
- 26,888Owner-occupied homes75% of households own
| Measure | Island County | Washington | U.S. | Island County 2019–2023 | Change |
|---|---|---|---|---|---|
| Effective tax rate | 0.66% | 0.75% | 0.94% | 0.67% | −0.01 pts |
| Median tax, all owners | $3,999 | $4,556 | $3,119 | $3,765 | +$234 (+6.2%) |
| Median tax, with a mortgage | $3,918 | $4,665 | $3,489 | $3,708 | +$210 (+5.7%) |
| Median tax, no mortgage | $4,138 | $4,298 | $2,576 | $3,873 | +$265 (+6.8%) |
| Median home value | $593,300 | $564,600 | $332,700 | $535,300 | +$58,000 (+10.8%) |
| Total taxes paid | $118,423,100 | $10,232,446,600 | $360,573,527,500 | $111,038,600 |
How Island County compares
- Per $1,000 of home value, owners here paid about $6.56 a year, against $7.54 statewide and $9.40 nationally.
- Rank in Washington: 12 of 38 counties from lowest to highest effective rate (among those with reliable estimates). Nationally, 38% of 2,682 counties had a lower rate.
- Homes with a mortgage: 0.69% of value; homes without one: 0.61%. Median bills: $3,918 and $4,138.
- Compared with the 2019–2023 survey, the effective rate fell (−0.01 pts) and the median tax changed +$234 (+6.2%). The two 5-year surveys share four years of responses, so year-to-year moves are small and partly noise.
- Margin of error: the effective rate is 0.66% ± 0.04% at 90% confidence, from a sample of the 26,888 owner-occupied homes.
Washington counties with similar rates
| County | Effective rate | Median tax | Median value |
|---|---|---|---|
| Klickitat County | 0.62% | $2,639 | $425,300 |
| Okanogan County | 0.64% | $2,281 | $299,800 |
| Chelan County | 0.65% | $3,503 | $490,100 |
| Jefferson County | 0.65% | $3,818 | $535,000 |
| Kittitas County | 0.66% | $3,552 | $497,400 |
| Lewis County | 0.68% | $2,581 | $385,800 |
| Whatcom County | 0.68% | $4,087 | $585,800 |
| Clallam County | 0.68% | $3,050 | $421,800 |
Sources
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table-based summary file: B25090 (aggregate real estate taxes), B25082 (aggregate home value), B25103 (median real estate taxes), B25077 (median home value) and B25003 (tenure); files dated January 29, 2026.
- U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates, same tables (files dated October 31, 2024), for the comparison column.
- Geography names: Census Bureau Geos20245YR.txt (file dated January 22, 2026).
Effective rate = total real estate taxes paid by owner-occupied homes ÷ their total value, as reported by owners to the Census Bureau. It is not a millage rate. Your bill depends on your assessed value, exemptions (such as homestead) and local levies.