Mililani Mauka, Hawaii Demographics & Population 2026
During the 2020–2024 ACS period, Mililani Mauka, Hawaii had a total population of 21,278, the 14th largest community in Hawaii, with a median household income of $138,942, which is 38% higher than the state average. The poverty rate is 3.3%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 38% above the state average — one of the wealthiest communities in Hawaii.
- An exceptionally low poverty rate of 3.3% — among the lowest in Hawaii.
- Housing affordability is a challenge — homes cost 7.1x the median household income.
- One of the most racially diverse communities in Hawaii (diversity index: 70/100).
- Near full employment with an unemployment rate of just 2.3%.
Mililani Mauka Quick Facts
How Mililani Mauka Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 21,967 | 21,278 | -3.1% |
| Median household income | $139,564 | $138,942 | -0.4% |
| Median home value | $901,800 | $988,100 | +9.6% |
How Mililani Mauka Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
This community is exceptionally diverse, with no single racial or ethnic group dominating the population.
State average: 76 | National average: 61
Education
Educational Attainment (Adults 25+)
Mililani Mauka Rankings in Hawaii
Explore Hawaii Rankings
Other Cities in Honolulu County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Urban Honolulu | 345,482 | $86,504 | 11.9% | $843,400 |
| East Honolulu | 51,360 | $159,518 | 5.3% | $1,212,000 |
| Pearl City | 44,547 | $118,112 | 5.8% | $901,500 |
| Waipahu | 40,482 | $103,895 | 12.0% | $868,600 |
| Kailua (Honolulu County) | 39,640 | $148,582 | 4.0% | $1,353,700 |
| Kaneohe | 37,355 | $125,613 | 9.7% | $1,029,700 |
| Mililani Town | 27,668 | $127,363 | 3.2% | $923,900 |
| Ewa Gentry | 26,563 | $135,684 | 2.9% | $816,000 |
| Kapolei | 22,232 | $128,324 | 6.3% | $744,200 |
| Makakilo | 20,735 | $118,550 | 9.2% | $867,200 |
Cities Similar to Mililani Mauka
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Kapolei | 22,232 | $128,324 | $744,200 | 29.9% | 6.3% |
| Makakilo | 20,735 | $118,550 | $867,200 | 36.4% | 9.2% |
| Ewa Gentry | 26,563 | $135,684 | $816,000 | 30.5% | 2.9% |
| Kihei | 21,567 | $87,772 | $919,900 | 31.4% | 7.4% |
| Kailua (Hawaii County) | 21,818 | $88,211 | $667,400 | 33.6% | 14.3% |
Population Overview
Mililani Mauka is a small city located in Hawaii, within Honolulu County. The total population is 21,278. It ranks as the 14th most populous out of 163 Census-designated places in Hawaii.
Age Demographics
The median age in Mililani Mauka is 38.7 years. This is 5% lower than the state median of 40.9 years.
Economy, Income & Housing
The median household income in Mililani Mauka is $138,942. This is 38% higher than the state median of $100,389. It is also 72% higher than the national median of $80,734. The poverty rate stands at 3.3%. This is 67% lower than the state poverty rate of 10.0%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 2.3%. This is 53% lower than the state rate of 4.9%. The median home value is $988,100. Housing costs are 18% higher than the state median of $839,100. The home-value-to-income ratio of 7.1x suggests that housing affordability is a significant concern for many residents. 74.9% of occupied housing units are owner-occupied. This homeownership rate is 19% higher than the state average of 63.0%.
Race & Ethnicity
The largest racial or ethnic group in Mililani Mauka is Asian, making up 47.2% of the population. White (non-Hispanic) residents account for 13.1%.
Education
51.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 43% higher than the state rate of 36.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.4%. Notably, 16.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Mililani Mauka, Hawaii is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Hawaii state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 163 Census-designated places in Hawaii. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Mililani Mauka, Hawaii?
Mililani Mauka, Hawaii has a population of 21,278 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Mililani Mauka, HI?
The median household income in Mililani Mauka is $138,942, which is 72% higher than the national median of $80,734.
What is the poverty rate in Mililani Mauka, HI?
The poverty rate in Mililani Mauka is 3.3%. This means approximately 704 residents live below the federal poverty line.
What is the racial makeup of Mililani Mauka, Hawaii?
Mililani Mauka's population is 13.1% White, 2.5% Black, 9.7% Hispanic/Latino, and 47.2% Asian.
What is the median home value in Mililani Mauka, HI?
The median home value in Mililani Mauka is $988,100. The home-value-to-income ratio is 7.1x.
How educated is Mililani Mauka, Hawaii?
51.5% of adults (25+) in Mililani Mauka hold a bachelor's degree or higher, and 16.5% hold a graduate or professional degree.