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% |
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Part of Hawaii
Metro areas in Hawaii
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.
Where to stay in Waipahu
Visiting or relocating to Waipahu, HI? Compare hotels and short-term rentals across the metro — live availability and prices.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.