Waipahu Population

1930–2026

40,253

2026 projection

5.2% since 2020 (increase)

010K20K30K40K50K19401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Waipahu. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202640,253+1270.32%
202540,126+2550.32%
202339,871-20.01%
202239,873-540.14%
202139,927+1,6514.31%
202038,276-1,1933.02%
201939,469-9582.37%
201840,427-1,2883.09%
201741,715+1250.30%
201641,590+4251.03%

Showing 10 of 22 years.

Waipahu Demographics

40.2median age

Median age

Female44 yrs
Male36.4 yrs

Adults

32,130
8,634 seniors · 27%23,496 other adults

Sex

Female 52.1% · 21,096Male 47.9% · 19,386

Population by age

MaleFemale85+ years, male: 39285+ years, female: 1,28880–84 years, male: 50580–84 years, female: 65875–79 years, male: 62675–79 years, female: 1,11870–74 years, male: 1,06570–74 years, female: 83065–69 years, male: 94465–69 years, female: 1,20860–64 years, male: 1,12960–64 years, female: 1,19655–59 years, male: 1,18855–59 years, female: 1,35950–54 years, male: 1,15350–54 years, female: 1,20645–49 years, male: 1,04545–49 years, female: 1,42440–44 years, male: 95240–44 years, female: 1,02535–39 years, male: 1,08235–39 years, female: 1,18530–34 years, male: 1,73630–34 years, female: 1,52125–29 years, male: 1,54925–29 years, female: 1,36220–24 years, male: 1,19020–24 years, female: 1,37015–19 years, male: 1,47015–19 years, female: 90510–14 years, male: 1,10310–14 years, female: 1,2755–9 years, male: 1,1715–9 years, female: 8540–4 years, male: 1,0860–4 years, female: 1,31285+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K1.5K1.5K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 405 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Waipahu Income

$103,895median household income

Median household income

$103,895

Half of households earn more, half earn less

Median earnings

$43,667

Typical yearly pay for a worker 25 or older.

Poverty rate

12%

About 1 in 8 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Waipahu Marital Status

46% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married46%48%44%
Never married37%41%33%
Divorced7%8%7%
Widowed8%2%14%
Separated2%<1%3%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year