† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupWaipahuHawaiiUnited States
Filipino24.9%14.3%0.9%
Japanese22.7%11.7%0.2%
Chinese9.1%4.1%1.3%
Korean3.0%1.4%0.4%
Vietnamese1.7%0.8%0.6%
Asian Indian0.3%0.2%1.4%
Thai0.3%0.2%—
Laotian0.3%——
Native Hawaiian0.5%6.1%—
Samoan0.1%0.9%—
Marshallese0.1%0.6%—
Mexican2.0%3.4%11.3%
Puerto Rican1.9%3.3%1.8%
Spanish0.7%1.3%—
Spaniard0.4%0.7%—
German0.9%5.8%12.5%
English0.7%5.1%9.5%
Irish0.7%4.7%9.4%
Portuguese0.4%3.2%—
Italian0.3%2.1%4.8%
American0.2%1.0%5.3%
French0.2%1.2%1.6%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Waipahu
Hawaii
United States
Median age
40.2
41
39.1
Age 18–24
8.4%
8.0%
9.2%
Age 65 and older
21.4%
20.5%
17.2%
Household economy
Measure
Waipahu
Hawaii
United States
Median household income
$103,895
$100,389
$84,427
Poverty rate
12.0%
10.0%
12.5%
Bachelor's degree or higher (25+)
20.1%
36.2%
35.6%
Languages at home
Measure
Waipahu
Hawaii
United States
Speaks a non-English language at home
49.0%
24.7%
22.3%
Tagalog (incl. Filipino)
18.7%
4.4%
0.6%
Other Asian & Pacific Island
27.8%
11.6%
1.1%
Religious landscape
Measure
Waipahu
Hawaii
United States
Catholic
—
18.6%
18.6%
Evangelical Protestant
—
8.9%
16.5%
Unclaimed / not counted
—
59.7%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Waipahu, Hawaii
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+3.8%
2008
+42.1%
2012
+48.2%
2016
+39.2%
2020
+10.0%
2024
+0.1%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
49.4%Harris4,344
49.3%Trump4,334
1.2%
D+0.1
R+9.8
D+1.6
8,785
D
54.3%Biden5,747
44.3%Trump4,693
1.3%
D+10.0
R+29.3
D+5.5
10,582
D
67.3%Clinton4,927
28.1%Trump2,056
4.6%
D+39.2
R+9.0
D+37.2
7,316
D
73.5%Obama5,680
25.2%Romney1,951
1.3%
D+48.2
D+6.2
D+44.4
7,733
D
70.5%Obama5,853
28.5%McCain2,362
1.0%
D+42.1
D+38.3
D+34.8
8,298
D
51.8%Kerry4,155
48.0%Bush3,854
0.1%
D+3.8
—
D+6.2
8,021
Waipahu's electorate is shaped by one of Hawaii's densest concentrations of Filipino Americans, a demographic that has steadily grown as new residential development pushes westward from Honolulu along the H-1 freeway corridor.
Across the recorded series it reached a Democratic high of 48.2 points in 2012. Between 2020 and 2024 the city moved 9.8 points toward the Republican candidate; the 2024 margin was 0.1 points.
A population of 40,482, a 3% non-Hispanic-white share, and a median household income of $103,895 describe the city. The city's voting pattern over the last decade is most similar to that of Kahului and Royal Kunia.
Akashic
Political twins — cities
The cities whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
In 2024, Waipahu, Hawaii voted a near-tie (D+0.1), carried by the Democratic candidate. Out of 8,785 votes cast, 4,344 went Democratic and 4,334 went Republican.
How many people live in Waipahu, Hawaii?
Waipahu, Hawaii has a population of 40,482 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Waipahu, Hawaii?
Median household income in Waipahu, Hawaii is $103,895 — above the national median of $80,734. The Hawaii state median is $100,389.
What is the political history of Waipahu, Hawaii?
Akashic tracks 6 presidential elections in Waipahu, Hawaii from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
