PlainZIP

Kahuku, HI · standard

ZIP Code 96731

Honolulu County, Hawaii - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

3,292
66/sq mi
$73,417
Median income
$916,700
Median home value
38.3%
Bachelor's or higher

The verdict

Kahuku pairs an above-median household income with top-decile home values, in a rural, homeowner-dominated area.

Top 48%
household income, US ZIPs
Top 3%
home value, US ZIPs
66
people per sq mi
63%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 96731 against every reporting US ZIP.

ZIP code 96731 covers 50.3 square miles in Kahuku, Honolulu County, Hawaii (a standard USPS delivery area), with a modest 3,292 residents on file, a density of 66 people per square mile, in the Pacific/Honolulu time zone.

ZIP 96731 lands in the middle-income range, with a median household income of $73,417 (21% below the Hawaii average), while per-capita income is $35,455. Poverty here runs at 8.4%, with unemployment measured at 5.9%. Housing costs here run $916,700 for a typical home value (18% above the state average), with rent averaging $1,422 a month; 62.7% of homes are owner-occupied.

A solid share of residents have a four-year degree: 38.3% of adults hold a bachelor's degree or higher, the median age is 33.2, and the average commute is -. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Honolulu County, so you can benchmark 96731 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 96731

Top 5 sectors by establishment count in Kahuku, HI

Which industries have the most business establishments in ZIP 96731.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 96731, Kahuku, HI · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

3,292

Population

50.3

Area (sq mi)

66

People / sq mi

Pacific/Honolulu

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 96731?

33.2

Median Age

47.3%

Male

52.7%

Female

13.1%

Foreign-Born

White 21.6%
African American 0.5%
Asian 14.8%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 21.9%
Two or More Ethnicities 40.3%
Hispanic or Latino 7.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$73,417

Median Household Income

-21% vs state

$35,455

Per Capita Income

8.4%

Poverty Rate

5.9%

Unemployment Rate

How ZIP 96731 ranks nationally

Kahuku, HI household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$73,417 Top 48% higher than 52% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 68.3%
Bachelor's Degree or Higher 38.3%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,294

Total Housing Units

801

Occupied Units

493

Vacant Units

3.46

Avg Household Size

Occupancy Type

Owner 62.7%
Renter 37.3%

$916,700

Median Home Value

+18% vs state

$1,422

Median Rent

1978

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 60 business establishments in ZIP 96731, employing approximately 1,414 people with a combined annual payroll of $70,255,000.

60

Businesses

1,414

Employees

$70.3M

Annual Payroll

8

Industry Sectors

Industry Establishments % of Total
Accommodation and food services 21 35.0%
Real estate and rental and leasing 7 11.7%
Health care and social assistance 6 10.0%
Retail trade 4 6.7%
Other services (except public administration) 4 6.7%
Construction 3 5.0%
Professional, scientific, and technical services 3 5.0%
Administrative and support and waste management and remediation services 3 5.0%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 96731 vs 96762 →

ZIP 96731 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 96731 ranks #5 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 96731 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 96731 ranks #6 of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
96762 Laie, HI 6,419 3.9 mi
96712 Haleiwa, HI 7,352 5.4 mi
96786 Wahiawa, HI 40,859 8.1 mi
96717 Hauula, HI 5,555 9.5 mi
96730 Kaaawa, HI 1,541 11.8 mi

More ZIP Codes in Honolulu County

96797 standard
Waipahu, HI
Pop: 72,289
96706 standard
Ewa Beach, HI
Pop: 62,730
96817 standard
Honolulu, HI
Pop: 54,628
96744 standard
Kaneohe, HI
Pop: 54,247
96789 standard
Mililani, HI
Pop: 54,129
96734 standard
Kailua, HI
Pop: 50,746

Related Areas

Honolulu County Kahuku, HI Hawaii

Frequently Asked Questions

What county is ZIP code 96731 in? ▼
ZIP code 96731 (Kahuku) is located in Honolulu County, Hawaii. Honolulu County contains multiple ZIP codes, see the full list at /counties/honolulu-hi.
What is the population of ZIP code 96731? ▼
ZIP code 96731 in Kahuku, HI has a population of 3,292 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 96731? ▼
The median household income in ZIP 96731 is $73,417, which is 4% below the national average of $76,288.
What is the average home value in ZIP 96731? ▼
The median home value in ZIP 96731 is $916,700, which is 230% above the national average of $278,155.
What is the demographic makeup of ZIP 96731? ▼
The largest racial group in ZIP 96731 is Two or More Ethnicities at 40.3%. Hispanic or Latino residents make up 7.0% of the population.
How many businesses are in ZIP code 96731? ▼
ZIP code 96731 has 60 business establishments employing approximately 1,414 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 96731? ▼
The top industries by establishment count in ZIP 96731 are: Accommodation and food services (21), Real estate and rental and leasing (7), Health care and social assistance (6). There are 8 industry sectors represented in total.
What is the education level in ZIP code 96731? ▼
In ZIP code 96731, 68.3% of residents aged 25+ have a high school diploma or higher, and 38.3% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 96731? ▼
In ZIP code 96731, approximately 62.7% of occupied housing units are owner-occupied and 37.3% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 96731? ▼
The poverty rate in ZIP code 96731 is 8.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.