What is the property tax rate in Kauai County?

The effective rate is 0.21%: homeowners paid a median $1,866 a year on a median home value of $873,200 (Census ACS 2020-2024). The Hawaii rate is 0.27% and the US rate 0.94%.

How much is property tax on a $300,000 house in Kauai County?

About $641 a year ($53 a month) at the county's effective rate of 0.21%. Your bill depends on your assessed value, local levies and exemptions.

Is property tax in Kauai County high?

Kauai County's rate is 20% lower than the Hawaii rate and 77% lower than the US rate. It ranks 3rd of 4 counties in Hawaii and 3,122 of 3,134 US counties (1 = highest).

Why might my bill be different?

The rate here is an average across homeowners. Bills depend on when the home was last assessed, the levies of your city and school district, and exemptions or caps you qualify for.

Property taxHawaiiCensus ACS 2020–2024

Kauai County, Hawaii property tax rate

Homeowners in Kauai County pay a median $1,866 a year in property tax, an effective rate of 0.21% of home value.The median home is worth $873,200. That rate is 20% lower than the Hawaii rate (0.27%) and 77% lower than the US rate (0.94%). It is the 3rd highest of 4 counties in Hawaii.

Effective rate

0.21%

#3 of 4 in HI · #3,122 of 3,134 in the US

Median tax paid

$1,866

± $110 · US $3,119

Median home value

$873,200

US $332,700

Paid by homeowners

$41.0 million

a year, 16,210 owner-occupied homes

Compared with the state and the US

Kauai County's rate is 77% lower than the US rate

Effective property tax rate (median tax ÷ median home value). Grey ticks: the other 3 counties in Hawaii.

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates.

Estimate your property tax in Kauai County

Home value × the county's effective rate. Change the value to see your estimate.

Home value

Estimated property tax a year

$1,866

$156 a month at 0.21%, the effective rate for Kauai County.

At the Hawaii rate (0.27%)	$2,330
At the US rate (0.94%)	$8,186

An estimate from Census averages, not your bill. Your tax depends on your assessed value, local levies and any exemptions (homestead, senior, veteran) you claim.

What homeowners pay

27% of Kauai County homeowners pay $3,000 or more a year (US 49%)

Owner-occupied homes by yearly real estate taxes paid, with and without a mortgage combined

Yearly property tax paid	Share of homeowners
No real estate taxes paid	5%
Less than $800	13%
$800 to $1,499	25%
$1,500 to $1,999	13%
$2,000 to $2,999	17%
$3,000 or more	27%

U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25102.

Median tax with a mortgage: $1,860; without a mortgage: $1,889. Homes with a mortgage tend to be newer, bought more recently and worth more.

Five years earlier

The median tax bill rose 29% between the 2015–2019 and 2020–2024 surveys while median home value rose 53%, so the effective rate went down from 0.25% to 0.21%.

	2015–2019	2020–2024	Change
Median property tax paid	$1,448	$1,866	+29%
Median home value	$570,700	$873,200	+53%
Effective rate	0.25%	0.21%	-0.04 pts

Where to check your own bill

Your actual bill is set locally: the county assessor values your home, and the county, city, school district and other local districts each set a rate on that value. Exemptions such as a homestead exemption can cut the bill. Check your assessment and bill with the Kauai County assessor or tax collector.

Questions and answers

What is the property tax rate in Kauai County?: The effective rate is 0.21%: homeowners paid a median $1,866 a year on a median home value of $873,200 (Census ACS 2020-2024). The Hawaii rate is 0.27% and the US rate 0.94%.
How much is property tax on a $300,000 house in Kauai County?: About $641 a year ($53 a month) at the county's effective rate of 0.21%. Your bill depends on your assessed value, local levies and exemptions.
Is property tax in Kauai County high?: Kauai County's rate is 20% lower than the Hawaii rate and 77% lower than the US rate. It ranks 3rd of 4 counties in Hawaii and 3,122 of 3,134 US counties (1 = highest).
Why might my bill be different?: The rate here is an average across homeowners. Bills depend on when the home was last assessed, the levies of your city and school district, and exemptions or caps you qualify for.

Hawaii property tax rates by county0.27%
Property taxes by stateall 50 states and DC
Property tax calculatorany US county
Where do my state taxes go in Hawaii?state budget
Hawaii income tax calculatortake-home pay

Sources and notes

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates (released December 2025), tables B25103 (median real estate taxes paid by mortgage status), B25077 (median value), B25102 (mortgage status by real estate taxes paid), B25090 and B25082 (aggregate taxes paid and aggregate value) and B25003 (tenure). Owner-occupied homes. Public domain.
Five years earlier: ACS 2015–2019 5-year estimates, tables B25103 and B25077. Dollars are nominal.
Effective rate = median real estate taxes paid ÷ median home value. Taxes are what homeowners report paying for the year; values are what they say the home would sell for. Where the Census Bureau caps the median tax at “$10,000+”, the rate is total taxes paid ÷ total home value instead. ± figures are the Census 90% margins of error.
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