Mililani Town, HI Profile: Facts, Map & Data


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Mililani Town, Hawaii - Basic Facts

The Mililani Town Census Designated Place had a population of 28,491 as of July 1, 2017. Mililani Town ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Hawaii. See peer rankings below.

The primary coordinate point for Mililani Town is located at latitude 21.4465 and longitude -158.0146 in Honolulu County. The formal boundaries for the Mililani Town Census Designated Place (see map below) encompass a land area of 4.01 sq. miles and a water area of 0 sq. miles. Honolulu County is in the Hawaii time zone (GMT -10). The elevation is 650 feet.

The Mililani Town Census Designated Place (GNIS ID: 2414101) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Hawaii is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Mililani Town Census Designated Place is located within Ewa Division of Honolulu County.

Beneath the boundary map are tables with Mililani Town population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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Mililani Town Census Designated Place, HI Boundary Map

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Mililani Town, HI Data & Demographics (As of July 1, 2017)


Total Population 28,491
Daytime Population: Workers 4,910
Daytime Population: Residents 13,545
Total Daytime Population (TDP) 18,455
Ratio TDP/Total Population1 0.65
Population in Households 28,491
Population in Familes 25,491
Population in Group Qrtrs 0
Population Density2 7,105
Diversity Index3 83


Median Household Income $100,048
Average Household Income $113,576
Per Capita Income $36,503


Total Housing Units 9,474 (100%)
Owner Occupied HU 7,200 (76.0%)
Renter Occupied HU 1,957 (20.7%)
Vacant Housing Units 317 ( 3.3%)
Median Home Value $586,668
Average Home Value $578,281


Total Households 9,157
Average Household Size 3.11
Family Households 7,513
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.42% 0.57%
Households 0.18% 0.44%
Families 0.15% 0.42%
Median Household Income   0.78%
Per Capita Income   1.95%

Mililani Town, HI - Peer Comparisons by Rank and Percentile

The table below compares Mililani Town to the other 151 incorporated cities, towns and CDPs in Hawaii by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 9 95th
Population Density # 9 95th
Diversity Index # 80 48th
Median Household Income # 19 88th
Per Capita Income # 30 81st

Additional comparisons and rankings can be made with a VERY EASY TO USE Hawaii Census Data Comparison Tool.

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