Mililani ZIP Code List — Honolulu County, HI

There is one unique ZIP code in Mililani, Hawaii and it is 96789. Area code: 808.

ZIP codes

26.37

sq mi land

0.15

sq mi water

808

area code

Mililani, HI ZIP code map

About Mililani, HI

Mililani, HI, is a planned community located in the heart of Oahu, Hawaii. It is known for its family-friendly atmosphere and suburban lifestyle, featuring a blend of residential neighborhoods, parks, and local businesses. With its elevation offering stunning views of the surrounding landscape, Mililani is a desirable place to live and visit.

Location & geography

Mililani is situated in the central part of Oahu, surrounded by the lush hills of the island. The city is approximately 15 miles northwest of Honolulu, 12 miles from Pearl City, and 10 miles from Waipahu, making it easily accessible for commuters. Covering a land area of 26.37 square miles and a water area of 0.15 square miles, Mililani is characterized by its rolling hills and scenic vistas.

Community & economy

The character of Mililani is defined by its community-oriented neighborhoods, where residents actively participate in local events and activities. The primary industries include education, healthcare, and retail, contributing to the local economy and providing numerous job opportunities. Daily life in Mililani is enriched by recreational amenities, including parks, sports facilities, and cultural events that foster a strong sense of belonging.

Transportation

Major highways, including the H-2 Freeway, provide convenient access to and from Mililani, linking it to other parts of the island. The nearest airport is Daniel K. Inouye International Airport in Honolulu, which serves both domestic and international flights. Public transit options are available through TheBus, allowing residents to navigate the community and beyond.

History

Mililani was founded in the late 1960s as a planned community aimed at providing modern housing options in a scenic setting. It has grown into a vibrant suburb and has played a significant role in the development of Oahu's residential regions. Key industries in the early days included construction and retail, which established the foundation for the bustling community seen today.

Did you know?

One surprising fact about Mililani is that it was one of Hawaii's first planned communities, designed specifically to offer a suburban lifestyle in an island setting. Additionally, Mililani hosts the Mililani Mauka community, which features unique residential designs and amenities.

ZIP codes for Mililani, HI (1)

ZIP code	City	County	Map
96789	Mililani	Honolulu	View map

Demographics & statistics

54,362

Population

41.8

Median age

$119,475

Median household income

$49,165

Per capita income

$832,900

Median home value

$2,253

Median monthly rent

79.5%

Home ownership

3.5%

Poverty rate

2.8%

Unemployment

15,698

Housing units

42.8%

Bachelor's or higher

Age distribution

Male Female

1,334

Under 5

1,257

1,599

5–9

1,505

1,977

10–14

1,861

1,530

15–19

1,441

1,530

20–24

1,441

3,545

25–34

3,338

3,521

35–44

3,315

3,682

45–54

3,467

2,177

55–59

2,050

1,877

60–64

1,768

3,087

65–74

2,907

1,556

75–84

1,466

583

85+

548

← Male

Female →

Age summary

Group	Count	%
Under 18	11,425	21.0%
18 and over	42,937	79.0%
65 and over	10,147	18.7%
Median age	41.8 years

Race & ethnicity

Asian 47.2%

Two or more races 28.1%

White 12.3%

Native Hawaiian / Pacific Islander 4.7%

Hispanic or Latino 3.8%

Black or African American 2.7%

Other race 1.2%

American Indian / Alaska Native 0.1%

Group	Count	%
Asian	26,656	47.2%
Two or more races	15,854	28.1%
White	6,957	12.3%
Native Hawaiian / Pacific Islander	2,646	4.7%
Hispanic or Latino	2,149	3.8%
Black or African American	1,506	2.7%
Other race	682	1.2%
American Indian / Alaska Native	61	0.1%

Household income

Under $10k 2.2%

$10k–$15k 0.2%

$15k–$25k 2.4%

$25k–$35k 3.6%

$35k–$50k 6.6%

$50k–$75k 11.8%

$75k–$100k 12.7%

$100k–$150k 22.4%

$150k–$200k 19.7%

$200k+ 18.4%

Range	% of households
Under $10k	2.2%
$10k–$15k	0.2%
$15k–$25k	2.4%
$25k–$35k	3.6%
$35k–$50k	6.6%
$50k–$75k	11.8%
$75k–$100k	12.7%
$100k–$150k	22.4%
$150k–$200k	19.7%
$200k+	18.4%
Median income	$119,475

Housing

Home values

Under $50k 0.6%

$50k–$100k 0.5%

$100k–$150k 0.2%

$150k–$200k 0.2%

$200k–$300k 1.8%

$300k–$500k 16.2%

$500k–$1M 55.4%

$1M+ 25.0%

Housing overview

Metric	Value
Median home value	$832,900
Median rent / month	$2,253
Owner occupied	79.5%
Renter occupied	20.5%
Vacant	3.2%
Single-family detached	59.0%
Large apartment buildings	6.8%
Mobile homes	0.1%
Median rooms	5.4
Avg household size (owned)	2.86

Year built

Era	%
2020 or later	0.0%
2010–2019	2.3%
2000–2009	16.4%
1990–1999	22.4%
1980–1989	19.4%
1970–1979	30.8%
1960–1969	6.0%
1950–1959	2.2%
1940–1949	0.2%
1939 or earlier	0.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.8%
1 bedroom	3.8%
2 bedrooms	26.2%
3 bedrooms	38.8%
4 bedrooms	23.8%
5+ bedrooms	6.6%

Vehicles per household

Vehicles	% of households
No vehicle	2.3%
1 vehicle	26.8%
2 vehicles	40.8%
3 or more	30.0%

Heating fuel

Fuel type	%
Utility gas	1.3%
Electricity	44.9%
Propane / LP gas	0.6%
Solar	5.2%
No fuel used	47.9%

Households & families

Household type	Count	%
Married-couple family	11,384	60.1%
Cohabiting couple	1,059	5.6%
Male householder, no spouse	2,920	15.4%
Female householder, no spouse	3,582	18.9%
Households with children under 18	6,140	32.4%
Households with seniors (65+)	7,117	37.6%
Average household size	2.87

Marital status

Status	Male	Female
Never married	33.6%	24.9%
Married	55.7%	56.5%
Separated	0.6%	1.4%
Widowed	2.4%	8.2%
Divorced	7.8%	9.0%

Education

Less than 9th grade 1.1%

Some HS, no diploma 2.4%

HS graduate 20.8%

Some college, no degree 19.8%

Associate's degree 13.2%

Bachelor's degree 28.5%

Graduate / professional 14.3%

Metric	%
HS diploma or higher	96.5%
Bachelor's or higher	42.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	674	5.2%
Kindergarten	411	3.2%
Elementary school	5,596	42.9%
High school	2,741	21.0%
College / grad school	3,612	27.7%

Employment

Industry of employment

Education & healthcare 24.9%

Public administration 14.8%

Arts, food & hospitality 9.9%

Retail trade 9.4%

Professional & management 8.0%

Construction 7.6%

Transportation & utilities 7.6%

Finance & real estate 5.8%

Manufacturing 4.1%

Other services 3.3%

Wholesale trade 2.9%

Information 1.3%

Agriculture & mining 0.3%

Occupation

Category	%
Management, business & arts	42.4%
Service	18.2%
Sales & office	21.4%
Natural resources & construction	8.9%
Production & transportation	9.1%

Employment type

Type	%
Private sector	64.4%
Government	30.9%
Self-employed	4.5%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	78.1%
Carpool	10.6%
Public transit	2.3%
Walk	0.8%
Other means	1.6%
Avg commute (minutes)	30.4

Poverty

All people 3.5%

Under 18 years 4.4%

18 and over 3.2%

Married-couple families 0.9%

Female-led households 6.5%

Income support

Source	% of households
Social Security	36.2%
Retirement income	35.6%
Supplemental Security	3.0%
Cash public assistance	2.5%
Food stamps / SNAP	5.0%

Health indicators

Condition	%
High blood pressure	26.9%
High cholesterol	28.8%
Heart disease	3.5%
Stroke	2.2%
Asthma	8.2%
Arthritis	16.2%
Kidney disease	2.0%
Pulmonary disease	3.0%
Cancer	4.5%

Behavior / access	%
Binge drinking	16.0%
No physical activity	17.8%
Less than 7 hrs sleep	41.4%
Fair or poor health	9.6%
Poor mental health	11.1%
Poor physical health	6.4%
No health insurance	8.0%
Visited doctor (checkup)	79.1%
Visited dentist	77.3%
Cholesterol screening	88.0%
Teeth loss	5.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	4,920	11.9%

Disability	%
Any disability	10.9%
Under 18	5.7%
18–64 years	6.6%
65 and over	30.0%

Health insurance coverage

Type	%
Private insurance	87.3%
Public insurance	30.1%
Uninsured under 19	1.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	51,771	95.2%
Spanish	2,118	4.1%
Other Indo-European	99	0.2%
Asian & Pacific Islander	23	0.0%
Other languages	1,986	3.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	48,464	89.2%
Born in same state	46,538	85.6%
Born in different state	36,232	66.6%
Foreign born	1,926	3.5%
Naturalized citizen	5,898	10.8%
Not a US citizen	4,412	74.8%

Ancestry

Ancestry	Count	%
French	1,989	3.7%
Italian	1,979	3.6%
Arab	591	1.1%
Polish	165	0.3%
Dutch	140	0.3%

Ancestry	Count	%
English	127	0.2%
Irish	93	0.2%
German	33	0.1%
Norwegian	29	0.1%

Technology access

Metric	% of households
Computer access	34.8%
Internet access	97.1%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Mililani, HI have?

Mililani, HI has one ZIP code: 96789. Each ZIP code serves a distinct delivery area within the city and surrounding region.