Census-designated place · Hawaii
Mililani Town, Hawaii
Mililani Town, census-designated place, in Honolulu County, Hawaii. Mililani Town had 27,668 people in the ACS 2020-2024 5-year estimates (±1,436). GEOID 1551050.
Residents, 2020-2024
27,668
±1,436 (90% margin)
2020 Census count: 28,121
Median household income
$127,363
±$9,796 (90% margin)
Hawaii: $100,389
Median home value
$923,900
±$22,741 (90% margin)
Hawaii: $839,100
Median gross rent
$2,384
±$168 (90% margin)
Hawaii: $1,971
Where is Mililani Town and what county is it in?
Mililani Town is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Honolulu County, Hawaii. It covers 4.0 square miles of land, 7,014 residents per square mile in 2020.
Mililani Town is in the Urban Honolulu, HI metropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Mililani Town, and is it growing?
The 2020-2024 American Community Survey puts Mililani Town's population at 27,668 (±1,436). The 2020 Census counted 28,121 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; Mililani Town is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Mililani Town | Honolulu County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 27,668 ±1,436 | 1,001,146 | no clear change |
| Households | 9,691 ±466 | 338,868 | +942 |
| Average household size | 2.85 ±0.10 | 2.85 | −0.30 |
| Housing units | 9,880 ±421 | 374,304 | +882 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Mililani Town?
The median resident of Mililani Town is 45.5 years old; 19.8% are under 18 and 26.1% are 65 or older. The largest group is non-Hispanic Asian residents at 45.1%, then non-Hispanic residents of two or more races at 27.3%. 10.1% of residents were born outside the United States.
| Measure | Mililani Town | Honolulu County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 45.5 ±2.5 | 39.8 | +4.1 |
| Under 18 years | 19.8% ±1.8 pts | 20.6% | – |
| 65 years and over | 26.1% ±2.2 pts | 19.6% | – |
| Male | 51.8% ±1.5 pts | 50.5% | – |
| Hispanic or Latino (any race) | 11.4% ±1.6 pts | 9.4% | no clear change |
| White alone, not Hispanic | 9.7% ±1.1 pts | 17.2% | −4.5 pts |
| Black or African American alone, not Hispanic | 1.6% ±0.7 pts | 2.2% | no clear change |
| Asian alone, not Hispanic | 45.1% ±3.7 pts | 41.6% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 4.3% ±2.0 pts | 9.1% | – |
| Two or more races, not Hispanic | 27.3% ±2.9 pts | 20.1% | – |
| Some other race alone, not Hispanic | 0.6% ±0.5 pts | 0.3% | – |
| Born outside the United States | 10.1% ±1.6 pts | 19.6% | no clear change |
| Speak a language other than English at home (age 5+) | 11.4% ±1.8 pts | 26.0% | – |
| Civilian veterans (age 18+) | 12.9% ±2.0 pts | 8.7% | – |
| With a disability | 12.9% ±2.1 pts | 12.5% | – |
| No health insurance coverage | 1.3% ±0.4 pts | 3.3% | −1.3 pts |
| High school graduate or higher (age 25+) | 95.6% ±1.0 pts | 93.2% | – |
| Bachelor's degree or higher (age 25+) | 43.8% ±3.1 pts | 38.5% | +8.5 pts |
| Graduate or professional degree (age 25+) | 15.2% ±2.2 pts | 14.3% | – |
| Lived in the same house a year earlier | 94.0% ±1.6 pts | 86.6% | – |
| Moved from another state in the past year | 2.7% ±1.4 pts | 4.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Mililani Town earn?
Half of Mililani Town's 9,691 households earn less than $127,363 a year (±$9,796), against $106,195 in Honolulu County and $100,389 in Hawaii. In 2015-2019 it was $122,405 in 2024 dollars; the margins of error cannot tell the two periods apart. 3.2% of residents live below the poverty line.
| Measure | Mililani Town | Honolulu County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $127,363 ±$9,796 | $106,195 | no clear change |
| Mean household income | $148,583 ±$8,203 | $136,601 | – |
| Per capita income | $52,408 ±$2,881 | $47,516 | +$5,837 |
| People below the poverty line | 3.2% ±1.0 pts | 9.2% | no clear change |
| Children under 18 below the poverty line | 4.2% ±2.9 pts | 11.3% | – |
| Households receiving SNAP | 5.0% ±1.7 pts | 10.2% | – |
| Households with a computer | 98.0% ±0.8 pts | 96.4% | – |
| Households with a broadband subscription | 96.7% ±1.0 pts | 92.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Mililani Town?
Owners occupy 81.2% of Mililani Town's occupied homes and renters 18.8%. The median owner-occupied home is valued at $923,900 by its owner (±$22,741). The median renter pays $2,384 a month including utilities, and 33.2% of renters pay 35% or more of their income on rent.
| Measure | Mililani Town | Honolulu County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $923,900 ±$22,741 | $897,500 | +$136,502 |
| Median gross rent | $2,384 ±$168 | $2,083 | no clear change |
| Renters paying 35% or more of income on rent | 33.2% ±8.7 pts | 47.2% | −16.4 pts |
| Median monthly owner costs, with a mortgage | $3,027 ±$146 | $3,111 | – |
| Owner-occupied homes | 81.2% ±2.3 pts | 59.8% | no clear change |
| Renter-occupied homes | 18.8% ±2.3 pts | 40.2% | – |
| Housing units | 9,880 ±421 | 374,304 | +882 |
| Homeowner vacancy rate | 0.0% ±0.4 pts | 0.9% | – |
| Rental vacancy rate | 0.5% ±0.8 pts | 5.6% | – |
| Single-family detached homes | 65.3% ±2.6 pts | 45.3% | – |
| Mobile homes | 0.1% ±0.2 pts | 0.2% | – |
| Built 2020 or later | 0.5% ±0.6 pts | 1.1% | – |
| Built 2010 to 2019 | 1.1% ±0.7 pts | 8.3% | – |
| Built 1939 or earlier | 0.2% ±0.2 pts | 3.0% | – |
| Households with no vehicle | 3.0% ±0.9 pts | 9.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Mililani Town work and get to work?
77.7% of Mililani Town's workers drive alone and 7.7% work from home. The average trip to work takes 29.9 minutes. The unemployment rate in 2020-2024 averaged 3.7%.
| Measure | Mililani Town | Honolulu County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 62.2% ±2.3 pts | 65.2% | – |
| Unemployment rate | 3.7% ±1.1 pts | 4.7% | +1.4 pts |
| Drove alone to work | 77.7% ±2.3 pts | 63.4% | – |
| Carpooled | 11.7% ±2.3 pts | 13.8% | – |
| Public transportation | 1.4% ±0.6 pts | 4.9% | – |
| Walked | 0.9% ±0.5 pts | 5.2% | – |
| Worked from home | 7.7% ±1.5 pts | 9.2% | +5.6 pts |
| Mean travel time to work | 29.9 min ±1.3 | 26.7 min | −1.8 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Mililani Town?
8 census tracts lie mostly in Mililani Town (2020 census blocks). Their median household incomes run from $88,846 (Tract 89.42) to $158,500 (Tract 89.41).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 89.18Honolulu County | 5,328 | $121,530 |
| Tract 89.17Honolulu County | 4,404 | $137,448 |
| Tract 89.06Honolulu County | 3,886 | $119,804 |
| Tract 89.09Honolulu County | 3,631 | $132,083 |
| Tract 89.33Honolulu County | 3,680 | $145,543 |
| Tract 89.42Honolulu County | 2,436 | $88,846 |
| Tract 89.32Honolulu County | 2,373 | $139,356 |
| Tract 89.41Honolulu County | 1,930 | $158,500 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Mililani Town) · Census block assignment files
How does Mililani Town compare with other places in Hawaii?
Mililani Town ranks 19th of 125 places in Hawaii with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 9th | 126 |
| Residents per square mile | 9th | 126 |
| Median household income | 19th | 125 |
| Per capita income | 24th | 126 |
| Median home value | 33rd | 120 |
| Median gross rent | 31st | 119 |
| Poverty rate | 97th | 99 |
| Bachelor's degree or higher | 21st | 125 |
| Median age | 31st | 126 |
| Owner-occupied share | 22nd | 119 |
| Work from home | 57th | 86 |
| Travel time to work | 56th | 126 |
Mililani Town's figures with every place in Hawaii (CSV)
Every place in Hawaii, sortable · Compare Mililani Town with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Mililani Town?
8 of the 57 figures for Mililani Town on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Mililani Town are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.