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NEIGHBORHOOD

Diamond Head-Kapahulu-St. Louis

Hawaii · Honolulu · 18,236 residents · 3.50 sq mi
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The short version

With 18,236 people, Diamond Head-Kapahulu-St. Louis is a neighborhood in Honolulu. The typical home is worth $1,032,553. The median age is 48.1, about 9 years above the US median. This is an unusually credentialed place: 50% of adults have a four-year degree. Density works out to 5,206 people per square mile. Renters pay $2,151 a month at the median. These figures are approximated by combining the 10 census tracts that make up Diamond Head-Kapahulu-St. Louis; the Census Bureau does not tabulate data for neighborhoods directly.

At a glance
Wealthier
median household income $106,027, above the US median
US median: $82,259
Older
median age 48.1
US median: 38.9
More educated
50% hold a bachelor's degree
US average: 36%
Renter-heavy
57% owner-occupied
US average: 65%
In context

Diamond Head-Kapahulu-St. Louis compared with Honolulu

MeasureDiamond Head-Kapahulu-St. LouisHonoluluDifference
Median household income$106,027$86,50423% higher
Median home value$1,032,553$843,40022% higher
Homes that are rented42.6%51.1%−8.5 pts
Bachelor's degree or higher50.0%41.5%+8.5 pts
Poverty rate7.7%11.9%−4.2 pts
Foreign-born residents20.7%27.6%−6.9 pts
Median age48.143.05.1 years older
Section 01

Population & growth

Total population
18,236
Population density
5,206 / sq mi
US average: 281
Median age
48.1
US average: 38.9
Land area
3.50 sq mi
Section 02

Income & economy

Median household income
$106,027
US average: $82,259
Per capita income
$61,657
US average: $44,673
Households earning $100K+
60.3%
US average: 53.3%
Poverty rate
7.7%
US average: 12.5%
Income inequality (Gini)
0.454
US average: 0.476
Workforce by industry, 2024
Other services9.3%
US avg: 6.7%
Information8.2%
US avg: 10.8%
Finance & insurance6.3%
US avg: 5.9%
Professional, scientific, technical5.2%
US avg: 5.1%
Public administration4.4%
US avg: 4.8%
Wholesale trade3.8%
US avg: 6.9%
Retail trade2.8%
US avg: 9.9%
Transportation & warehousing2.2%
US avg: 2.2%
Arts, entertainment, food2.2%
US avg: 1.9%
Education & health services1.1%
US avg: 0.9%
Agriculture, forestry, fishing0.1%
US avg: 1.6%
Construction0.1%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$1,032,553
US average: $376,019
Median gross rent
$2,151
US average: $1,442
Owner-occupied
57.4%
42.6% rent
Vacancy rate
12.3%
US average: 10.0%
Persons per household
2.46 people
US average: 2.54
Owner cost-burdened
24.5%
US average: 22.9%
Renter cost-burdened
47.6%
US average: 47.4%
Afford Score
9.7
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04

Race & ethnicity

2024
White, non-Hispanic22.7%(4,141)
Black0.5%(98)
Hispanic / Latino5.1%(934)
Asian50.5%(9,215)
Other21.1%(3,848)
2024
White, non-Hispanic22.7%(4,141)
Black0.5%(98)
Hispanic / Latino5.1%(934)
Asian50.5%(9,215)
Other21.1%(3,848)
Diversity Score
81
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 05

Education

Bachelor's degree or higher
50.0%
US average: 35.6%
High school or higher
93.5%
US average: 89.6%
Graduate degree
20.4%
US average: 14.0%
Section 06

Commute & transportation

Average commute
22.2 min
US average: 26.5
Drive alone to work
56.9%
US average: 68.9%
Carpooled to work
12.9%
US average: 8.5%
Public transit
5.8%
US average: 3.2%
Worked from home
12.8%
US average: 15.0%
Walked to work
4.6%
US average: 2.4%
Biked to work
2.9%
US average: 0.4%
No vehicle available
10.2%
US average: 8.3%
Section 07

Work & employment

Unemployment rate
5.2%
US average: 5.2%
Labor force participation
64.0%
US average: 63.5%
Self-employed
15.7%
US average: 13.1%
Management & professional
48.8%
US average: 42.5%
Section 08

People & community

Male
48.7%
Female
51.3%
Foreign born
20.7%
US average: 14.1%
Veterans
5.5%
US average: 6.2%
With a disability
11.3%
US average: 13.3%
Uninsured
2.5%
US average: 8.4%
Broadband at home
92.7%
US average: 91.0%
English only at home
72.7%
US average: 77.7%
Spanish at home
0.9%
US average: 13.6%
Explore

Neighborhoods in Honolulu

Drill deeper

Places similar to Diamond Head-Kapahulu-St. Louis

Van Ness - Civic Center
Pop 16,950
Mount Washington
Pop 18,692
Cambria Heights
Pop 19,981
Abbott Loop
Pop 22,914
Places similar to Diamond Head-Kapahulu-St. Louis
Head to head

Compare Diamond Head-Kapahulu-St. Louis side by side

DIAMOND HEAD-KAPAHULU-ST. LOUIS VS
Van Ness - Civic Center
Income$112,021+6%
Home value$1,085,479+5%
Population16,950−7%
SEE FULL COMPARISON →
DIAMOND HEAD-KAPAHULU-ST. LOUIS VS
Mount Washington
Income$115,428+9%
Home value$1,097,240+6%
Population18,692+3%
SEE FULL COMPARISON →
DIAMOND HEAD-KAPAHULU-ST. LOUIS VS
Cambria Heights
Income$112,651+6%
Home value$651,922−37%
Population19,981+10%
SEE FULL COMPARISON →
DIAMOND HEAD-KAPAHULU-ST. LOUIS VS
Abbott Loop
Income$106,032same
Home value$358,331−65%
Population22,914+26%
SEE FULL COMPARISON →
Frequently asked

How many people live in Diamond Head-Kapahulu-St. Louis, Urban Honolulu, Hawaii?

Diamond Head-Kapahulu-St. Louis, Urban Honolulu, Hawaii has about 18,236 residents according to the 2024 American Community Survey.

What is the median household income in Diamond Head-Kapahulu-St. Louis, Urban Honolulu, Hawaii?

The typical household in Diamond Head-Kapahulu-St. Louis, Urban Honolulu, Hawaii earns about $106,027 a year. Half of households make more than that, and half make less.

Is Diamond Head-Kapahulu-St. Louis, Urban Honolulu, Hawaii expensive?

In Diamond Head-Kapahulu-St. Louis, Urban Honolulu, Hawaii, the median home is worth about $1,032,553, and the typical rent is about $2,151 a month.

How educated are people in Diamond Head-Kapahulu-St. Louis, Urban Honolulu, Hawaii?

About 50.0% of adults age 25 and over in Diamond Head-Kapahulu-St. Louis, Urban Honolulu, Hawaii hold a bachelor's degree or higher.

What is the poverty rate in Diamond Head-Kapahulu-St. Louis, Urban Honolulu, Hawaii?

About 7.7% of people in Diamond Head-Kapahulu-St. Louis, Urban Honolulu, Hawaii live below the federal poverty line.

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Containing area
Honolulu

DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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