According to the U.S. Census Bureau, the county has a total area of 1,266 square miles (3,280 km2), of which 620 square miles (1,600 km2) is land and 646 square miles (1,670 km2) (51.0%) is water.[3] The Pacific Ocean surrounds the county.
Kauaʻi County operates under a mayor-council form of municipal government. The Mayor of Kauaʻi, elected by the voters on a nonpartisan basis, holds executive authority for a four-year term. Meanwhile, legislative authority is vested in the seven-member County Council. Members of the County Council are elected on a nonpartisan, at-large basis to two-year terms.
Niʻihau, portion of ʻŌmaʻo, Kōloa, Po‘ipū, Lāwa‘i, Kalāheo, ‘Ele‘ele, Hanapēpē, Kaawanui Village, Pākalā Village, Waimea, Kekaha
Elections
Federal
Kauai County has traditionally been a solid Democratic stronghold. The county has not voted Republican since the 1984 federal election, when it narrowly voted in favor of Ronald Reagan. In 2024, while it still voted majority Democratic, Kauai County cast the highest percentage of its vote for the Republican candidate out of any county in the state, a record that has generally been held by Honolulu County. This was the first time since 1960 that the county held this distinction.
United States presidential election results for Kauai County, Hawaii[5]
U.S. Decennial Census[7] 1790-1960[8] 1900-1990[9] 1990-2000[10] 2010-2018[1]
At the 2000 census there were 58,463 people, 20,183 households, and 14,572 families in the county. The population density was 94 people per square mile (36 people/km2). There were 25,331 housing units at an average density of 41 per square mile (16/km2). The racial makeup of the county was 36.0% Asian, 29.5% White, 23.8% from two or more races, 9.1% Pacific Islander, 0.3% Black or African American, 0.4% Native American and 0.9% from other races. 8.2%.[11] were Hispanic or Latino of any race.
Of the 20,183 households 34.0% had children under the age of 18 living with them, 53.9% were married couples living together, 12.8% had a female householder with no husband present, and 27.8% were non-families. 21.4% of households were one person and 7.7% were one person aged 65 or older. The average household size was 2.87 and the average family size was 3.34.
The age distribution was 26.4% under the age of 18, 7.1% from 18 to 24, 27.2% from 25 to 44, 25.5% from 45 to 64, and 13.8% 65 or older. The median age was 38 years. For every 100 females there were 100.10 males. For every 100 females age 18 and over, there were 97.50 males.
Public schools in the county are operated by the Hawaiʻi State Department of Education,[13] and the county is represented by Maggie Cox on the state's Board of Education. There are 10 elementary schools, 3 middle schools, 3 high schools, and 5 K-12 schools in the county.
There are four private schools in the county: Island School, Kahili Adventist School, St. Theresa's Elementary School, and ʻŌlelo Christian Academy. St. Catherine's School used to operate, but closed its doors on June 7, 2024.[14]
There are no incorporated communities in Kauai County, or in any other county of Hawaii. The county is the only form of local government in the State of Hawaii.
