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 Moderate-density area
- $73,417
- Median income Near-median income area
- $916,700
- Median home value Above-median home value
- 38.3%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
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 average Hawaii ZIP), while per-capita income is $35,455. The poverty rate is 8.4%, with unemployment at 5.9%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $916,700 (18% above the average Hawaii ZIP), while 62.7% of occupied homes are owner-occupied and median rent is $1,422.
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 -. The page also surfaces 5 ZIP codes within roughly 10 miles and 6 more in Honolulu County, so 96731 can be compared with both its immediate and county-level context.
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.
- Accommodation and food services
Accommodation and food services
21 establishments
- Real estate and rental and leasing 7
Real estate and rental and leasing
7 establishments
- Health care and social assistance 6
Health care and social assistance
6 establishments
- Retail trade 4
Retail trade
4 establishments
- Other services (except public administration) 4
Other services (except public administration)
4 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, 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
Who lives in ZIP 96731?
33.2
Median Age
47.3%
Male
52.7%
Female
13.1%
Foreign-Born
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 ZIP avg
$35,455
Per Capita Income
8.4%
Poverty Rate
5.9%
Unemployment Rate
How ZIP 96731 ranks among Hawaii ZIPs
Kahuku, HI household income vs. every Hawaii ZIP code
Median household income among 83 reporting Hawaii ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$73,417 18th percentile higher than 18% of 83 Hawaii ZIPs
Each bar is a $20K-wide band; taller bars hold more Hawaii 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
1,294housing units
1,294
Total Housing Units
801
Occupied Units
493
Vacant Units
3.46
Avg Household Size
Occupancy Type
$916,700
Median Home Value
+18% vs state ZIP avg
$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.
- 96786
Wahiawa (96786)
40,859 residents
- 96712 7,352
Haleiwa (96712)
7,352 residents
- 96762 6,419
Laie (96762)
6,419 residents
- 96717 5,555
Hauula (96717)
5,555 residents
- 96731 3,292
Kahuku (96731)
3,292 residents
- 96730 1,541
Kaaawa (96730)
1,541 residents
What this shows Among its immediate neighbors, ZIP 96731 ranks #5 by population - useful context the national average alone can't give.
ZIP 96731 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 96730
Kaaawa (96730)
$126,563 median income
- 96762
Laie (96762)
$125,645 median income
- 96717
Hauula (96717)
$102,978 median income
- 96712
Haleiwa (96712)
$88,333 median income
- 96786
Wahiawa (96786)
$85,554 median income
- 96731
Kahuku (96731)
$73,417 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.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 96731, both outside HI so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (3,292 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Honolulu County
Related Areas
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.
Related
Take this with you
What to do with ZIP 96731's numbers, next.
- See how ZIP 96731 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Kahuku, HI ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.