Mililani, HI 96789 ZIP Code Profile


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ZIP Code 96789: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Mililani, HI 96789

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 802
  • Single Family Addresses: 15,660
  • Multi-Family Addresses: 2,847
  • County: Honolulu County
  • Centroid: Latitude 21.448, Longitude -158.024
  • Time Zone: Hawaii Time Zone (UTC -10 hours)
  • Observes DST: No

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


96789 ZIP Code Map

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Mililani, HI 96789 Data & Demographics (As of July 1, 2017)


Total Population 56,645
Daytime Population: Workers 8,158
Daytime Population: Residents 26,042
Total Daytime Population (TDP) 34,200
Ratio TDP/Total Population1 0.60
Population in Households 56,645
Population in Familes 50,102
Population in Group Qrtrs 0
Population Density2 5,481
Diversity Index3 82


Median Household Income $100,257
Average Household Income $114,493
Per Capita Income $37,383


Total Housing Units 19,212 (100%)
Owner Occupied HU 14,351 (74.7%)
Renter Occupied HU 4,144 (21.6%)
Vacant Housing Units 717 ( 3.7%)
Median Home Value $593,018
Average Home Value $593,046


Total Households 18,495
Average Household Size 3.06
Family Households 14,601
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 0.69% 0.72%
Households 0.33% 0.55%
Families 0.29% 0.53%
Median Household Income   0.94%
Per Capita Income   2.08%

Mililani, HI 96789 - Peer Comparisons by Rank and Percentile

The table below compares 96789 to the other 93 ZIP Codes 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 # 4 97th
Population Density # 9 91st
Diversity Index # 47 48th
Median Household Income # 4 97th
Per Capita Income # 16 84th

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

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Puerto Rico’s Forgotten Island Vieques Needs Help

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