Waipahu, HI Demographics

A map of Waipahu's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Asian	28,176	30,931	69.6%	71.1%
Native American/Other	4,792	5,284	11.8%	12.2%
Multiracial	3,952	4,082	9.8%	9.4%
Hispanic	2,336	2,040	5.8%	4.7%
White	959	911	2.4%	2.1%
Black	267	237	0.7%	0.5%

Waipahu, Hawaii has an estimated population of 40,482, a decrease from the 43,485 recorded in the 2020 Census. The population is 69.6% Asian, 11.8% Native American/Other, 9.8% Multiracial, 5.8% Hispanic, 2.4% White, and 0.7% Black. This demographic dot map shows the population of Waipahu, with one dot drawn for each person counted by the Census, color-coded by race.

Waipahu has become more racially diverse since the 2020 Census. It is considerably less diverse than Hawaii overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Waipahu, that probability was 46.8% in 2020 and 48.8% in the most recent ACS estimates.

Waipahu is ranked the 5th most populous place in Hawaii, out of 163 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Waipahu was ranked the 5th most populous place in the 2020 Census.

Waipahu's White Population

959 residents of Waipahu, or 2.4% of the population, identify as White. The share of White residents in Waipahu is significantly lower than in Hawaii overall, where 20.9% of the population is White. Waipahu ranks 163rd statewide in terms of White residents as a share of the population, out of 163 places.

Since the 2020 Census, Waipahu's White population has grown by an estimated 5.3%. White residents' share of Waipahu's population has remained roughly unchanged at 2.4%.

Waipahu is less White than neighboring Waikele (8% White), West Loch Estate (3.9% White), Royal Kunia (6% White), Waipio (5.6% White), and East Kapolei (8.7% White).

Waipahu's Black Population

267 residents of Waipahu, or 0.7% of the population, identify as Black. The share of Black residents in Waipahu is comparable to the share in Hawaii overall, where 1.8% of the population is Black. Waipahu ranks 86th statewide in terms of Black residents as a share of the population, out of 163 places.

Since the 2020 Census, Waipahu's Black population has grown by an estimated 12.7%. Black residents' share of Waipahu's population has remained roughly unchanged at 0.7%.

Waipahu is more Black than neighboring East Kapolei (0.3% Black). Waipahu is less Black than neighboring Waikele (2% Black), West Loch Estate (2.5% Black), Royal Kunia (2.6% Black), and Waipio (0.8% Black).

Waipahu's Asian Population

28,176 residents of Waipahu, or 69.6% of the population, identify as Asian. The share of Asian residents in Waipahu is significantly higher than in Hawaii overall, where 36.4% of the population is Asian. Waipahu ranks 2nd statewide in terms of Asian residents as a share of the population, out of 163 places.

Since the 2020 Census, Waipahu's Asian population has declined by an estimated 8.9%. Asian residents' share of Waipahu's population has decreased from 71.1% to 69.6%.

Waipahu is more Asian than neighboring Waikele (60.6% Asian), West Loch Estate (45% Asian), Royal Kunia (55.9% Asian), Waipio (57% Asian), and East Kapolei (28.1% Asian).

Waipahu's Hispanic Population

2,336 residents of Waipahu, or 5.8% of the population, identify as Hispanic. The share of Hispanic residents in Waipahu is slightly lower than in Hawaii overall, where 9.9% of the population is Hispanic. Waipahu ranks 159th statewide in terms of Hispanic residents as a share of the population, out of 163 places.

Since the 2020 Census, Waipahu's Hispanic population has grown by an estimated 14.5%. Hispanic residents' share of Waipahu's population has increased from 4.7% to 5.8%.

Waipahu is more Hispanic than neighboring Waikele (5.6% Hispanic). Waipahu is less Hispanic than neighboring West Loch Estate (14.4% Hispanic), Royal Kunia (8.8% Hispanic), Waipio (7.1% Hispanic), and East Kapolei (15.1% Hispanic).

Waipahu's Native American/Other Population

4,792 residents of Waipahu, or 11.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Waipahu is comparable to the share in Hawaii overall, where 10% of the population is Native American/Other. Waipahu ranks 63rd statewide in terms of Native American/Other residents as a share of the population, out of 163 places.

Since the 2020 Census, Waipahu's Native American/Other population has declined by an estimated 9.3%. Native American/Other residents' share of Waipahu's population has remained roughly unchanged at 11.8%.

Waipahu is more Native American/Other than neighboring Waikele (1.2% Native American/Other), West Loch Estate (6.8% Native American/Other), Royal Kunia (6.6% Native American/Other), and Waipio (6.4% Native American/Other). Waipahu is less Native American/Other than neighboring East Kapolei (15.4% Native American/Other).

Waipahu's Multiracial Population

3,952 residents of Waipahu, or 9.8% of the population, identify as Multiracial. The share of Multiracial residents in Waipahu is considerably lower than in Hawaii overall, where 21% of the population is Multiracial. Waipahu ranks 152nd statewide in terms of Multiracial residents as a share of the population, out of 163 places.

Since the 2020 Census, Waipahu's Multiracial population has declined by an estimated 3.2%. Multiracial residents' share of Waipahu's population has remained roughly unchanged at 9.8%.

Waipahu is less Multiracial than neighboring Waikele (22.7% Multiracial), West Loch Estate (27.4% Multiracial), Royal Kunia (20% Multiracial), Waipio (23.1% Multiracial), and East Kapolei (32.4% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.