Kauai County Demographics

A map of Kauai County's Population by Race

Kauai County, Hawaii had a population of 73,298 in 2020. It was 30.3% White, 0.5% Black, 28.0% Asian, 10.1% Hispanic, 9.9% Native American/Other, and 21.3% Multiracial. This map presents the population of Kauai County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Kauai County is the 4th most populous county of the 5 counties in Hawaii.

Kauai County's White Population

22,194 residents of Kauai County identify as White, or 30.3%. This makes the White share of the population of Kauai County slightly larger than the White share of the population of Hawaii (21.6% White). Of the 5 counties in Hawaii, Kauai County is ranked #4 in terms of White residents as a share of the population.

Kauai County is more White than neighboring Honolulu County (17.3% White), and Aleutians East County (19.2% White). Kauai County is less White than neighboring Kalawao County (32.9% White), Maui County (31.5% White), and Hawaii County (32.2% White).

Kauai County's Black Population

352 residents of Kauai County identify as Black, or 0.5%. This makes the Black share of the population of Kauai County roughly similar to the Black share of the population of Hawaii (1.5% Black). Of the 5 counties in Hawaii, Kauai County is ranked #4 in terms of Black residents as a share of the population.

Kauai County is more Black than neighboring Kalawao County (0% Black). Kauai County is less Black than neighboring Maui County (0.6% Black), Hawaii County (0.6% Black), Honolulu County (1.9% Black), and Aleutians East County (8.7% Black).

Kauai County's Asian Population

20,504 residents of Kauai County identify as Asian, or 28.0%. This makes the Asian share of the population of Kauai County slightly less than the Asian share of the population of Hawaii (36.5% Asian). Of the 5 counties in Hawaii, Kauai County is ranked #2 in terms of Asian residents as a share of the population.

Kauai County is more Asian than neighboring Kalawao County (11% Asian), Maui County (26.3% Asian), Hawaii County (19.1% Asian), and Aleutians East County (22.5% Asian). Kauai County is less Asian than neighboring Honolulu County (42.2% Asian).

Kauai County's Hispanic Population

7,394 residents of Kauai County identify as Hispanic, or 10.1%. This makes the Hispanic share of the population of Kauai County roughly similar to the Hispanic share of the population of Hawaii (9.5% Hispanic). Of the 5 counties in Hawaii, Kauai County is ranked #4 in terms of Hispanic residents as a share of the population.

Kauai County is more Hispanic than neighboring Honolulu County (9.1% Hispanic). Kauai County is less Hispanic than neighboring Kalawao County (22% Hispanic), Maui County (10.3% Hispanic), Hawaii County (11.1% Hispanic), and Aleutians East County (19.7% Hispanic).

Kauai County's Native American/Other Population

7,264 residents of Kauai County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 9.9%. This makes the Native American/Other share of the population of Kauai County roughly similar to the Native American/Other share of the population of Hawaii (10.8% Native American/Other). Of the 5 counties in Hawaii, Kauai County is ranked #5 in terms of Native American/Other residents as a share of the population.

Kauai County is less Native American/Other than neighboring Kalawao County (23.2% Native American/Other), Maui County (12.3% Native American/Other), Hawaii County (13.9% Native American/Other), Honolulu County (10% Native American/Other), and Aleutians East County (24.6% Native American/Other).

Kauai County's Multiracial Population

15,590 residents of Kauai County identify as Multiracial, or 21.3%. This makes the Multiracial share of the population of Kauai County roughly similar to the Multiracial share of the population of Hawaii (20.1% Multiracial). Of the 5 counties in Hawaii, Kauai County is ranked #2 in terms of Multiracial residents as a share of the population.

Kauai County is more Multiracial than neighboring Kalawao County (11% Multiracial), Maui County (19.1% Multiracial), Honolulu County (19.5% Multiracial), and Aleutians East County (5.3% Multiracial). Kauai County is less Multiracial than neighboring Hawaii County (23.1% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.