Kauai County, Hawaii Demographics 2026

Population Overview

Kauai County is located in Hawaii with a total population of 73,610. It is the 4th most populous county out of 5 in Hawaii.

Age Demographics

The median age in Kauai County is 42.7 years. This is 5% higher than the state median of 40.6 years.

Economy, Income & Housing

The median household income in Kauai County is $93,612. This is 5% lower than the state median of $98,317. Compared to the national median of $78,538, household income here is 19% higher. The poverty rate stands at 8.8%. This is 12% lower than the state poverty rate of 10.0%. The unemployment rate is 3.9%. This is 23% lower than the state rate of 5.0%. The median home value is $817,900. Housing costs are 1% higher than the state median of $808,200. The home-value-to-income ratio of 8.7x suggests that housing affordability is a significant concern for many residents. 67.3% of occupied housing units are owner-occupied. This homeownership rate is 8% higher than the state average of 62.5%.

Race & Ethnicity

Kauai County is a highly diverse community where no single racial or ethnic group constitutes a majority of the population. White (non-Hispanic) residents account for 29.0%. The Black or African American population (0.6%) is well below the state average of 1.8%.

Education

30.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 15% lower than the state rate of 35.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.7%.