Waipahu, Hawaii Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Waipahu, Hawaii is 39,871 as of the 2023 American Community Survey, making it the 5th-largest city in Hawaii. The median household income is $98,633, the median home value is $835,400, and the median age is 39.7.
39,871
Population
14888
People / sq mi
$98,633
Median Income
$835,400
Median Home Value
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Waipahu covers 2.7 sq mi of land at 14888 people per square mile.
About Waipahu, HI
Waipahu stands apart on settlement density — it is among the most densely settled of US cities, at roughly 14,888 people per square mile. With 39,871 residents, Waipahu is a city in Hawaii. That makes it one of the ten largest cities in Hawaii in the country, at #5 by population.
Household earnings are middling, with a median of $98,633 — above the US median of $78,538. The poverty rate is 10.1%, below the national 12.4%. Housing is expensive: the median home is worth $835,400, with typical rent around $1,585.
Degree attainment is on the lower side for US cities: 18.6% of adults hold a bachelor’s degree, below the national 35.0%. Home-based work is uncommon, at 4.2%, below the national 14.0%, and the average commute runs about 32 minutes each way.
That density explains much of the rest of the profile in Waipahu: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Race & Ethnicity
| White | 3.3% |
| Black or African American | 0.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.4% |
| Two or More Races | 2.6% |
Economy & Income
$98,633
Median Household Income
$30,363
Per Capita Income
10.1%
Poverty Rate
2.6%
Unemployment Rate
Housing
$835,400
Median Home Value
$1,585
Median Rent
59.5%
Owner-Occupied
Education
85.2%
High School+
18.6%
Bachelor's+
Commute
12.2%
Drive Alone
59.6%
Public Transit
4.2%
Work From Home
32.1 min
Avg Commute
Community Profile
5.1%
Foreign Born
50.7%
Non-English at Home
6.0%
Veterans
15.0%
With Disability
93.8%
Health Insurance
92.2%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 20.6% |
| Education, Health Care & Social Services | 17.9% |
| Finance, Insurance & Real Estate | 8.9% |
| Construction | 8.7% |
| Retail Trade | 7.5% |
| Public Administration | 5.7% |
| Information | 5.3% |
| Arts, Entertainment & Food Services | 4.4% |
| Manufacturing | 2.5% |
| Agriculture & Mining | 1.5% |
| Transportation & Warehousing | 1.1% |
Largest cities in Hawaii
Largest counties in Hawaii
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City rankings
Frequently Asked Questions
Waipahu, Hawaii has a population of 39,871 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 5th-largest city in Hawaii.
The median household income in Waipahu, Hawaii is $98,633, with 10.1% of residents living below the federal poverty level.
The median home value in Waipahu, Hawaii is $835,400, with median monthly rent at $1,585 and a homeownership rate of 59.5%.
The median age in Waipahu, Hawaii is 39.7 years. The population is 48.2% male and 51.8% female.
Waipahu Cdp, HI Climate
Waipahu Cdp, HI has an average annual temperature of 24.3°C (76°F) and receives about 1260 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.
24.3°C
Avg Temp
1260
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 22° / 71° | 188 mm |
| February | 22° / 72° | 86 mm |
| March | 23° / 73° | 131 mm |
| April | 23° / 74° | 107 mm |
| May | 24° / 76° | 98 mm |
| June | 26° / 78° | 52 mm |
| July | 26° / 79° | 70 mm |
| August | 26° / 80° | 85 mm |
| September | 26° / 79° | 66 mm |
| October | 26° / 78° | 128 mm |
| November | 24° / 76° | 130 mm |
| December | 23° / 73° | 119 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Waipahu Cdp, HI
The most comfortable months to visit Waipahu Cdp, HI are typically February, June and April, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 31°C high). The coldest is January (near 17°C low). January is usually the wettest month.
Where to stay near Waipahu
Visiting or relocating to Waipahu, HI? Compare hotels and short-term rentals across the metro — live availability and prices.
Top-rated places to stay near Waipahu
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Population, race, income, age, and trends across Hawaii
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.