96731 ZIP Code — Kahuku, HI

Honolulu County, Hawaii

ZIP code 96731 is located in Kahuku, Hawaii, within Honolulu County. It covers approximately 9.71 square miles and serves a population of 2,742 residents. This is a standard ZIP code in the Hawaii (HT) — no DST timezone, served by area code 808.

About ZIP code 96731

The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $701,500. Owner-occupancy sits near the national average at 62%.

The gap between median ($73,750) and mean household income suggests income inequality — a small number of higher earners pull the average up. 33% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 34 minutes is near the national average.

Educational attainment is near the national average, with 33% of residents holding a bachelor's degree or higher.

2,742

population

9.71

sq mi land

Standard

ZIP type

Hawaii (HT) — no DST

timezone

96731 ZIP code map

Cities in ZIP code 96731

Below are the cities the US Postal Service accepts for ZIP code 96731. Using any city not on this list may result in mail delivery delays.

City	Status
Kahuku	Preferred

Nearby ZIP codes

96762 Laie (3.5 mi) 96712 Haleiwa (4.7 mi) 96717 Hauula (7.9 mi) 96786 Wahiawa (11.2 mi) 96730 Kaaawa (11.2 mi) 96791 Waialua (14.7 mi) 96797 Waipahu (17.4 mi) 96744 Kaneohe (17.5 mi) 96782 Pearl City (17.5 mi) 96792 Waianae (17.7 mi) 96701 Aiea (19 mi)

Demographics updated 06/2026

Population
Total population	2,742
Population density	282 / sq mi
State FIPS	15
County FIPS	003

Geography
Land area	9.71 sq mi
Water area	5.89 sq mi
Latitude	21.6615
Longitude	-157.9766
Timezone	Hawaii (HT) — no DST
Area code	808

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	21.1%	26.7%	29.0%
$50k – $100k	37.5%	29.4%	29.8%
$100k – $200k	25.1%	31.2%	29.9%
Over $200k	16.4%	12.7%	11.3%

Demographics & statistics

2,742

Population

282

People per sq mi

33.0

Median age

$73,750

Median household income

$31,220

Per capita income

$701,500

Median home value

$1,670

Median monthly rent

61.7%

Home ownership

9.6%

Poverty rate

10.3%

Unemployment

1,003

Housing units

33.0%

Bachelor's or higher

Age distribution

Male Female

141

Under 5

170

5–9

105

109

10–14

132

15–19

102

20–24

147

25–34

178

146

35–44

176

143

45–54

173

55–59

60–64

65–74

119

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	877	32.0%
18 and over	1,865	68.0%
65 and over	391	14.3%
Median age	33.0 years

Race & ethnicity

Two or more races 36.4%

Native Hawaiian / Pacific Islander 22.7%

White 22.2%

Asian 14.1%

Hispanic or Latino 2.2%

Black or African American 2.1%

American Indian / Alaska Native 0.1%

Other race 0.1%

Group	Count	%
Two or more races	1,020	36.4%
Native Hawaiian / Pacific Islander	638	22.7%
White	622	22.2%
Asian	396	14.1%
Hispanic or Latino	63	2.2%
Black or African American	59	2.1%
American Indian / Alaska Native	4	0.1%
Other race	3	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	21.1%	26.7%	29.0%
$50k – $100k	37.5%	29.4%	29.8%
$100k – $200k	25.1%	31.2%	29.9%
Over $200k	16.4%	12.7%	11.3%

Under $10k 8.0%

$10k–$15k 2.2%

$15k–$25k 3.0%

$25k–$35k 2.8%

$35k–$50k 12.0%

$50k–$75k 22.8%

$75k–$100k 10.6%

$100k–$150k 13.7%

$150k–$200k 9.8%

$200k+ 15.1%

Range	% of households
Under $10k	8.0%
$10k–$15k	2.2%
$15k–$25k	3.0%
$25k–$35k	2.8%
$35k–$50k	12.0%
$50k–$75k	22.8%
$75k–$100k	10.6%
$100k–$150k	13.7%
$150k–$200k	9.8%
$200k+	15.1%
Median income	$73,750

Housing

Home values

Under $50k 0.4%

$50k–$100k 0.4%

$300k–$500k 3.5%

$500k–$1M 79.5%

$1M+ 16.2%

Housing overview

Metric	Value
Median home value	$701,500
Median rent / month	$1,670
Owner occupied	61.7%
Renter occupied	38.3%
Vacant	39.5%
Single-family detached	50.9%
Large apartment buildings	3.8%
Mobile homes	0.0%
Median rooms	4.5
Avg household size (owned)	3.60

Year built

Era	%
2020 or later	0.0%
2010–2019	1.8%
2000–2009	6.0%
1990–1999	2.8%
1980–1989	25.7%
1970–1979	47.1%
1960–1969	3.0%
1950–1959	3.1%
1940–1949	4.4%
1939 or earlier	6.1%

Bedrooms

Size	% of units
No bedroom (studio)	5.1%
1 bedroom	24.7%
2 bedrooms	20.6%
3 bedrooms	35.8%
4 bedrooms	9.1%
5+ bedrooms	4.8%

Vehicles per household

Vehicles	% of households
No vehicle	4.4%
1 vehicle	23.3%
2 vehicles	43.0%
3 or more	29.3%

Heating fuel

Fuel type	%
Utility gas	0.5%
Electricity	23.1%
Propane / LP gas	0.3%
Solar	2.4%
No fuel used	73.8%

Households & families

Household type	Count	%
Married-couple family	416	52.7%
Cohabiting couple	43	5.4%
Male householder, no spouse	112	14.2%
Female householder, no spouse	218	27.6%
Households with children under 18	324	41.1%
Households with seniors (65+)	276	35.0%
Average household size	3.46

Marital status

Status	Male	Female
Never married	32.2%	28.7%
Married	60.6%	50.4%
Separated	0.3%	0.8%
Widowed	2.0%	6.1%
Divorced	5.0%	14.0%

Education

Less than 9th grade 1.9%

Some HS, no diploma 3.5%

HS graduate 35.0%

Some college, no degree 20.0%

Associate's degree 6.5%

Bachelor's degree 21.9%

Graduate / professional 11.1%

Metric	%
HS diploma or higher	94.6%
Bachelor's or higher	33.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	21	3.2%
Kindergarten	33	5.0%
Elementary school	320	48.6%
High school	165	25.0%
College / grad school	120	18.2%

Employment

Industry of employment

Education & healthcare 27.1%

Construction 15.1%

Arts, food & hospitality 14.0%

Retail trade 9.1%

Transportation & utilities 8.2%

Professional & management 7.4%

Public administration 5.8%

Agriculture & mining 5.7%

Finance & real estate 4.5%

Manufacturing 2.3%

Information 0.5%

Other services 0.2%

Wholesale trade 0.1%

Occupation

Category	%
Management, business & arts	35.8%
Service	13.4%
Sales & office	26.6%
Natural resources & construction	17.1%
Production & transportation	7.1%

Employment type

Type	%
Private sector	71.1%
Government	21.2%
Self-employed	7.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	62.2%
Carpool	16.3%
Public transit	4.2%
Walk	1.4%
Work from home	14.6%
Other means	1.3%
Avg commute (minutes)	34.2

Poverty

All people 9.6%

Under 18 years 11.7%

18 and over 8.6%

Married-couple families 12.3%

Female-led households 4.5%

Income support

Source	% of households
Social Security	33.1%
Retirement income	29.7%
Supplemental Security	2.4%
Cash public assistance	0.3%
Food stamps / SNAP	13.3%

Health indicators

Condition	%
Obesity	27.2%
High blood pressure	28.4%
High cholesterol	29.4%
Diabetes	9.3%
Heart disease	4.1%
Stroke	2.5%
Asthma	9.6%
Arthritis	17.7%
Kidney disease	2.3%
Pulmonary disease	3.5%
Cancer	5.2%

Behavior / access	%
Smoking	11.3%
Binge drinking	17.7%
No physical activity	17.2%
Less than 7 hrs sleep	41.8%
Depression	14.3%
Fair or poor health	10.7%
Poor mental health	11.8%
Poor physical health	6.9%
No health insurance	8.5%
Visited doctor (checkup)	79.6%
Visited dentist	76.8%
Cholesterol screening	87.7%
Teeth loss	5.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	106	5.8%

Disability	%
Any disability	10.8%
Under 18	4.1%
18–64 years	11.0%
65 and over	25.3%

Health insurance coverage

Type	%
Private insurance	65.5%
Public insurance	42.6%
No insurance	4.8%
Uninsured under 19	2.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,431	88.7%
Spanish	163	6.7%
Other Indo-European	20	0.8%
Asian & Pacific Islander	9	0.4%
Other languages	134	5.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,395	87.3%
Born in same state	2,314	84.4%
Born in different state	1,659	60.5%
Foreign born	81	3.0%
Naturalized citizen	347	12.7%
Not a US citizen	218	62.8%

Ancestry

Ancestry	Count	%
French	229	8.4%
Italian	74	2.7%
Dutch	3	0.1%

Ancestry	Count	%
Arab	3	0.1%
Polish	2	0.1%
Irish	1	0%

Technology access

Metric	% of households
Computer access	28.8%
Internet access	92.8%

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

Frequently asked questions about ZIP code 96731

What city is ZIP code 96731 in?

ZIP code 96731 is primarily assigned to Kahuku, Hawaii.

What county is ZIP code 96731 in?

ZIP code 96731 falls within Honolulu County, Hawaii.

Is ZIP code 96731 family-oriented?

32% of residents in ZIP code 96731 are under 18, reflecting a younger, family-oriented community.

What is the typical home value in ZIP code 96731?

The median home value in ZIP code 96731 is $701,500.

What is the population of ZIP code 96731?

ZIP code 96731 has an estimated population of 2,742 residents, with a density of 282 people per square mile.

What is the median household income in ZIP code 96731?

The median household income in ZIP code 96731 is $73,750, below the national median of ~$75,000.

What timezone is ZIP code 96731 in?

ZIP code 96731 observes the HST timezone.