Urban Honolulu Photo

Diamond Head-Kapahulu-St. Louis, Urban Honolulu,HI

Neighborhood Data
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Diamond Head-Kapahulu-St. Louis is a vibrant neighborhood in the southeast part of Honolulu, known for its unique blend of natural beauty and urban convenience. One of the standout attractions here is the iconic Diamond Head Crater, a must-visit for outdoor enthusiasts who enjoy hiking and panoramic views of the city and ocean. This area also features the bustling Kapahulu Avenue, dotted with local eateries, cafes, and shops that give the community its welcoming, laid-back vibe. Whether you’re craving traditional Hawaiian plate lunches or trendy fusion cuisine, you’ll find plenty of options right at your doorstep.

For those relocating to this neighborhood, the proximity to downtown Honolulu is definitely a plus. It’s just a short drive or bus ride away, making it easy to commute for work or enjoy the cultural and entertainment offerings of the city center. Despite its closeness to downtown, Diamond Head-Kapahulu-St. Louis still feels like a peaceful retreat, with quiet residential streets and an abundance of green spaces. St. Louis Heights Park is a favorite spot for families and fitness lovers alike, providing a perfect place to relax or get active after a busy day.

Living in Diamond Head-Kapahulu-St. Louis means embracing an active and community-oriented lifestyle. The neighborhood hosts various local events and farmers markets, encouraging residents to connect and celebrate Hawaiian culture. Plus, with easy access to Waikiki’s famous beaches just a short distance away, weekend beach trips become a regular, enjoyable part of life. Whether you’re a young professional, a family, or someone looking for a peaceful yet engaging environment, this area offers a wonderful balance of everything Honolulu has to offer.

Diamond Head-Kapahulu-St. Louis Demographics

Population 20,870
Density (People/sqml.) 6,139
Median Age 44.1
Married Couples
44%
44% of the population of Diamond Head-Kapahulu-St. Louis aged 16 years and older are married.
Have Kids
17%
17% of the population aged 16 years or older have children.

17% of the Diamond Head-Kapahulu-St. Louis population aged 16 and up are married, which is in line with national averages. This balance suggests a neighborhood with a healthy mix of families, couples, and single residents, creating a well-rounded community dynamic. You are likely to find a blend of stability and social variety, appealing to both long-term homeowners and younger professionals alike.

With only 17% of people over 16 having children, you can expect an easygoing environment that tends to attract residents seeking a quieter lifestyle. The atmosphere here leans more toward adult-oriented living. Without the constant rhythm of school schedules or kid-centered events, the community maintains a slower, more relaxed pace. This makes it especially appealing to singles, couples, and empty nesters who appreciate tranquil streets, and recreation on their own terms.

Age Breakdown

Diamond Head-Kapahulu-St. Louis neighborhood age breakdown chart

Exploring Diamond Head-Kapahulu-St. Louis demographics can reveal a lot about its character, pace, and overall lifestyle. Diamond Head-Kapahulu-St. Louis has a population of 20,870, which is larger than many other Urban Honolulu neighborhoods, creating a lively and dynamic atmosphere. Its size brings an abundance of amenities, entertainment options, and community activities, while still offering spaces to unwind and enjoy the neighborhood’s unique character.

Boasting a population density of 6,139, Diamond Head-Kapahulu-St. Louis is more densely populated than many other Urban Honolulu neighborhoods, creating a vibrant and energetic atmosphere. The higher concentration of residents contributes to a lively street scene, a strong sense of community, and convenient access to shops, restaurants, and urban amenities just steps from home.

Home to a population with a higher-than-average age of 44, this area offers a calm and refined atmosphere shaped by experience and tradition. The neighborhood’s more mature demographic fosters a strong sense of community, a relaxed pace of life, and an environment that’s both welcoming and well-established — making it an especially appealing choice for retirees seeking comfort, stability, and connection.

Crime in Diamond Head-Kapahulu-St. Louis

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Total Crime Incidents
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Types of Crime

Diamond Head-Kapahulu-St. Louis neighborhood crime breakdown chart

Diamond Head-Kapahulu-St. Louis Crime Map

The Diamond Head-Kapahulu-St. Louis crime map offers a clear, data-driven look at how crime is distributed throughout the neighborhood, using block group data to highlight both safer areas and potential hot spots. The color-coded map makes it easy to see where crime is more concentrated and where it occurs less frequently, helping residents and prospective buyers better understand local safety patterns. It’s important to note that darker or red zones on the map don’t necessarily mean those areas are unsafe — locations near busy transit hubs, shopping districts, or popular attractions often show higher activity simply due to larger crowds and increased foot traffic.

Housing

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Home Price $946,397
Median Rent $1,904
People/Household 2.4

Home Price Breakdown

Diamond Head-Kapahulu-St. Louis neighborhood home price breakdown chart

Rent vs Own

Rent 52% Own 48%

Year Moved In

Before 2010 66% After 2010 34%

Types of Homes in the Area

Market Trends

Year-over-Year Home Prices YoY data

 

Housing costs often reflect the desirability and overall character of a neighborhood. In Diamond Head-Kapahulu-St. Louis, home prices come in around $946,397, which is higher than many other areas. This elevated pricing points to a sought-after location with strong demand, well-maintained properties, and access to premium amenities that contribute to a higher quality of life. Historical home price trends and appreciation rates in Diamond Head-Kapahulu-St. Louis can serve as a window into the neighborhood’s economic strength and future potential. By understanding how the market has performed in the past, buyers and investors can better evaluate whether the area offers promising opportunities for growth and long-term value.

With an average rent price of $1,904, rental rates in Diamond Head-Kapahulu-St. Louis are higher than many other neighborhoods. This reflects the area’s desirability and strong demand, often accompanied by well-maintained properties, premium amenities, and a high quality of life.

Walkability & Lifestyle

Coffee Shops

Starbucks
Coffee Shop
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Kaimana Firm Cafe
Coffee Shop
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Entertainment

Attraction
Attraction
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Kaimuki High School Baseball Stadium
Stadium
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Food & Drink

Taco Bell
Fast Food
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Jack in the Box
Fast Food
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Groceries

Nanding's Bakery
Bakery
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Safeway
Grocery Store
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Parks

Crane Community Park
Park
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Playground
Playground
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Shops

NomNom
Convenience Store
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Island Triathlon & Bike
Bicycle
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Getting Around

Transit Stops

Campbell Avenue + Herbert Street
Bus Stop
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Bus Stop
Bus Stop
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Transit Stations

 
 
 
 
 
 
 
 
 
 
 
 

Health & Safety

Medical Facilities

Longs Drugs
Pharmacy
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Longs Drugs
Pharmacy
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Health Care

Maunalani Nursing and Rehabilitation Center
Nursing Home
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Honolulu Smile Design
Dentist
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Safety

Waikiki-Kapahulu Fire Station
Fire Station
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Kaimuki Fire Station Number 5
Fire Station
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Top Rated Schools

Name Category Grades Rating
University Laboratory School
1776 University Ave, Honolulu, HI
High School KG - 12 School Score
Hawaii School For The Deaf And Blind
3440 Leahi Ave, Honolulu, HI
High School PK - 12 School Score
St Patrick School
3320 Harding Ave, Honolulu, HI
Elementary School PK - 8 School Score
King Liholiho Elementary School
3430 Maunaloa Ave, Honolulu, HI
Elementary School PK - 5 School Score
Iolani School
563 Kamoku St, Honolulu, HI
High School KG - 12 School Score
Hokulani Elementary School
2940 Kamakini St, Honolulu, HI
Elementary School PK - 5 School Score
President Thomas Jefferson Elementary School
324 Kapahulu Ave, Honolulu, HI
Elementary School PK - 5 School Score

Education Level Achieved

School quality plays an important role in shaping the overall appeal of a neighborhood like Diamond Head-Kapahulu-St. Louis. Ratings based on student achievement, graduation rates, and standardized tests — supported by national benchmarks like the NAEP (National Assessment of Educational Progress) — help paint a clearer picture of how local schools perform. Additionally, understanding the education levels of residents in Diamond Head-Kapahulu-St. Louis offers valuable context about the community’s emphasis on learning and opportunity, helping families make confident decisions about where to settle and invest in their children’s future.