Kauai County, Hawaii
Located in Hawaii, Kauai County has a population of 73,731 residents and a median age of 43.1 years, making it the #762 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 9.1%. The median home value is $873,200, and the median household income is $97,668, which is 30% above the national median.
Demographics
Kauai County has a population of 73,731, making it the #762 most populous county in the US. The median age is 43.1 years, which is 10.8% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Kauai County is $97,668, ranking #188 out of 3,222 counties — 30.0% above the national median. The poverty rate is 9.1% and unemployment stands at 3.8%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Kauai County is $873,200 (+209.8% vs national). Renters pay a median of $1,870/mo and the homeownership rate is 68.6%.
Median Home Value Trend
Rankings →Household Type
Education
In Kauai County, 30.1% of adults age 25+ hold a bachelor's degree or higher, which is 10.7% below the national average, ranking #762 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Kauai County is 82.4 years. 15.0% of adults report poor or fair health and 5.1% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
13.6% of adults in Kauai County smoke , 22.8% are obese , and 21.6% report excessive drinking. The drug overdose death rate is 23.3 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Kauai County is 2.0 per 100,000 and the suicide rate is 16.9 per 100,000. Motor vehicle deaths occur at a rate of 8.7 per 100,000.
Homicide Rate Trend
Families & Children
11.9% of children in Kauai County live in poverty and the infant mortality rate is 5.0 per 1,000 live births. The teen birth rate is 15.4 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Kauai County is 64.8%. The mean commute time is 25.3 min, which is 8.2% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Kauai County voted Democratic with a margin of 19.5%. The vote was 58.8% Dem / 39.3% Rep. Compared to 2020, the margin shifted 9.3 toward Republicans .
Vote Share Over Time
About Kauai County, Hawaii
Kauai County, Hawaii has a total population of 73,731, making it the 762nd most populous county in the United States. The median age in Kauai County is 43.1 years, which is 10.8% above the national median of 38.9 years.
The median household income in Kauai County is $97,668, which ranks #188 of 3,222 counties nationwide. This is 30.0% above the national median of $75,149. The poverty rate is 9.1%, lower than the national rate of 12.6%. The unemployment rate stands at 3.8%.
The median home value in Kauai County is $873,200, 209.8% above the national median. Renters in Kauai County pay a median gross rent of $1,870 per month. The homeownership rate is 68.6%, compared to the national rate of 64.4%.
In Kauai County, 30.1% of residents aged 25 and older hold a bachelor's degree or higher, 10.7% below the national average of 33.7%. Health insurance coverage stands at 96.0% of the population. The average commute time for workers is 25.3 min.
Kauai County is a diverse community. The largest racial or ethnic group is Asian (non-Hispanic) at 30.0% of the population, followed by White (non-Hispanic) (28.7%) and Two or More Races (19.9%).
All data for Kauai County, Hawaii comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.