Kailua Cdp (Hawaii County), Hawaii Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Kailua Cdp (Hawaii County), Hawaii is 21,851 as of the 2023 American Community Survey, making it the 14th-largest city in Hawaii. The median household income is $86,743, the median home value is $649,400, and the median age is 42.2.
21,851
Population
1584
People / sq mi
$86,743
Median Income
$649,400
Median Home Value
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Kailua Cdp (Hawaii County) covers 13.8 sq mi of land at 1584 people per square mile.
About Kailua Cdp (Hawaii County), HI
Housing cost is the defining feature of Kailua Cdp (Hawaii County): the median home is valued at $649,400. With 21,851 residents, Kailua Cdp (Hawaii County) is a city in Hawaii. It ranks #14 among cities in Hawaii by population.
Median household income is $86,743, above the US median of $78,538. Poverty sits at 10.6%, below the national 12.4%. Home values run above average at $649,400, with typical rent around $1,747.
Roughly 33.2% of adults have a bachelor’s, below the national 35.0%. About 10.7% of the workforce is home-based, below the national 14.0%, and the average commute runs about 22 minutes each way.
High housing values reframe the income picture in Kailua Cdp (Hawaii County) — even solid earnings stretch less against home prices and rents at this level.
Race & Ethnicity
| White | 42.2% |
| Black or African American | 0.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.2% |
| Two or More Races | 6.6% |
Economy & Income
$86,743
Median Household Income
$45,940
Per Capita Income
10.6%
Poverty Rate
2.5%
Unemployment Rate
Housing
$649,400
Median Home Value
$1,747
Median Rent
66.2%
Owner-Occupied
Education
92.0%
High School+
33.2%
Bachelor's+
Commute
0.3%
Drive Alone
60.7%
Public Transit
10.7%
Work From Home
21.6 min
Avg Commute
Community Profile
39.5%
Foreign Born
73.7%
Non-English at Home
6.9%
Veterans
12.5%
With Disability
95.0%
Health Insurance
97.2%
Internet Access
Employment by Industry
| Education, Health Care & Social Services | 24.2% |
| Professional, Scientific & Management | 16.1% |
| Finance, Insurance & Real Estate | 13.0% |
| Information | 7.4% |
| Construction | 6.6% |
| Arts, Entertainment & Food Services | 4.5% |
| Public Administration | 4.0% |
| Retail Trade | 3.2% |
| Transportation & Warehousing | 2.4% |
| Agriculture & Mining | 2.4% |
| Manufacturing | 1.7% |
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City rankings
Frequently Asked Questions
Kailua Cdp (Hawaii County), Hawaii has a population of 21,851 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 14th-largest city in Hawaii.
The median household income in Kailua Cdp (Hawaii County), Hawaii is $86,743, with 10.6% of residents living below the federal poverty level.
The median home value in Kailua Cdp (Hawaii County), Hawaii is $649,400, with median monthly rent at $1,747 and a homeownership rate of 66.2%.
The median age in Kailua Cdp (Hawaii County), Hawaii is 42.2 years. The population is 50.4% male and 49.6% female.
Kailua Cdp (Hawaii County), HI Climate
Kailua Cdp (Hawaii County), HI has an average annual temperature of 21.7°C (71°F) and receives about 1908 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.
21.7°C
Avg Temp
1908
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 20° / 68° | 148 mm |
| February | 20° / 68° | 139 mm |
| March | 21° / 69° | 172 mm |
| April | 21° / 70° | 203 mm |
| May | 22° / 71° | 202 mm |
| June | 22° / 72° | 132 mm |
| July | 23° / 73° | 154 mm |
| August | 23° / 74° | 172 mm |
| September | 23° / 74° | 155 mm |
| October | 23° / 73° | 127 mm |
| November | 22° / 72° | 184 mm |
| December | 21° / 69° | 120 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Kailua Cdp (Hawaii County), HI
The most comfortable months to visit Kailua Cdp (Hawaii County), HI are typically December, February and June, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 27°C high). The coldest is January (near 15°C low). April is usually the wettest month.
Where to stay near Kailua Cdp (Hawaii County)
Visiting or relocating to Kailua Cdp (Hawaii County), HI? Compare hotels and short-term rentals across the metro — live availability and prices.
Top-rated places to stay near Kailua Cdp (Hawaii County)
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.