Mililani Town, Hawaii Demographics & Population 2026

Population Overview

Mililani Town is a mid-sized community located in Hawaii, within Honolulu County. The total population is 27,668. It ranks as the 9th most populous out of 163 Census-designated places in Hawaii.

Age Demographics

The median age in Mililani Town is 45.5 years. This is 11% higher than the state median of 40.9 years. 11.5% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Mililani Town is $127,363. This is 27% higher than the state median of $100,389. It is also 58% higher than the national median of $80,734. The poverty rate stands at 3.2%. This is 68% 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 3.7%. This is 24% lower than the state rate of 4.9%. The median home value is $923,900. Housing costs are 10% higher than the state median of $839,100. The home-value-to-income ratio of 7.3x suggests that housing affordability is a significant concern for many residents. 81.2% of occupied housing units are owner-occupied. This homeownership rate is 29% higher than the state average of 63.0%.

Race & Ethnicity

The largest racial or ethnic group in Mililani Town is Asian, making up 45.1% of the population. Hispanic or Latino residents account for 11.4%. The White (non-Hispanic) population (9.7%) is well below the state average of 20.9%.

Education

43.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 21% 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 95.6%. Notably, 15.2% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Mililani Town, 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.