Kauai County, HI property tax
Census ACS 2023 5-year estimates · updated 2026-09-20
The median effective property tax rate in Kauai County is 0.22%, below the Hawaii median of 0.27% and below the national median of 0.98%. The median homeowner pays $1,840 a year on a home worth $817,900.
- Effective rate
- 0.22%
- Median annual bill
- $1,840
- Median home value
- $817,900
- Rank in Hawaii
- 3of 4
Estimated annual bill by home value
| Home value | Estimated bill | Per month |
|---|---|---|
| $200,000 | $440 | $37 |
| $300,000 | $660 | $55 |
| $400,000 | $880 | $73 |
| $500,000 | $1,100 | $92 |
| $750,000 | $1,650 | $138 |
| $1,000,000 | $2,200 | $183 |
Kauai County compared with Hawaii and the US
| Area | Effective rate | Median bill | Median home value |
|---|---|---|---|
| Kauai County | 0.22% | $1,840 | $817,900 |
| Hawaii median | 0.27% | $2,183 | $808,200 |
| United States median | 0.98% | $2,969 | n/a |
Rates and medians: U.S. Census Bureau, ACS 2023 5-year estimates, tables B25103 and B25077. Effective rate is median taxes paid divided by median owner-occupied home value.
Frequently asked questions
What is the property tax rate in Kauai County, HI?
The median effective property tax rate in Kauai County is 0.22% of home value, below the Hawaii median of 0.27% and below the national median of 0.98%. The median homeowner pays $1,840 a year on a median home value of $817,900 (Census ACS 2023 5-year).
How much is property tax on a $400,000 house in Kauai County?
About $880 per year at the county's median effective rate of 0.22%, before exemptions. The exact bill depends on the city, school district and special districts that serve the parcel, so treat this as a planning estimate.
How does Kauai County compare with the rest of Hawaii?
Kauai County ranks 3 of 4 Hawaii counties by effective rate. The Hawaii median is 0.27% and the median bill is $2,183.