Kailua, Hawaii Population 2024

21,427

Kailua is a city located in Hawaii County Hawaii. Kailua has a 2024 population of 21,427. Kailua is currently declining at a rate of -0.05% annually and its population has decreased by -6.73% since the most recent census, which recorded a population of 22,972 in 2020.

The average household income in Kailua is $127,283 with a poverty rate of 10.36%. The median age in Kailua is 42.4 years: 39.2 years for males, and 45.6 years for females.

Kailua Demographics

According to the most recent ACS, the racial composition of Kailua was:

  • White: 42.06%
  • Asian: 19.49%
  • Two or more races: 17.54%
  • Native Hawaiian or Pacific Islander: 14.49%
  • Other race: 5.07%
  • Black or African American: 1.3%
  • Native American: 0.05%
State
Hawaii
Land Area (mi²)
13.8 sq mi
Density (mi²)
1,553.0/sq mi
Growth Since 2020
-6.73% (-1,545)
The current population of Kailua, Hawaii is 21,427 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 22,972.

Population by Race

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Race
Population
Percentage (of total)
White9,02242.06%
Asian4,18119.49%
Two or more races3,76317.54%
Native Hawaiian or Pacific Islander3,10814.49%
Other race1,0875.07%
Black or African American2781.3%
Native American100.05%

White

Asian

Two or more races

Native Hawaiian or Pacific Islander

Other race

Black or African American

Native American

Kailua Population by Race

Kailua Population Pyramid 2024

Kailua Median Age

42.4

Total

39.2

Male

45.6

Female

Kailua Adults

There are 17,080 adults, (4,099 of whom are seniors) in Kailua.

Kailua Age Dependency

65.2

Age Dependency Ratio

31.6

Old Age Dependency Ratio

33.7

Child Dependency Ratio

Kailua Sex Ratio

Female10,29748.01%
Male11,15251.99%

Kailua Population by Age

Kailua Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All7,4432.8465.734.3
Married3,8483.3376.423.6
Non Family2,5821.526040
Female6124.5845.354.7
Male4014.0230.469.6

3.32

Average Family Size

2.84

Average Household Size

65.7%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Kailua Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade8545.53%
Associates Degree1,70511.05%
Bachelors Degree3,07519.93%
Graduate Degree1,97712.81%
High School Graduate3,99125.87%
Less Than 9th Grade2921.89%
Some College3,53622.92%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Kailua Educational Attainment by Sex (over 25)

Kailua Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White7,7627,5663,336
Asian3,1662,6881,064
2+ Races1,9181,840342
Islander1,9181,662171
Hispanic763633133
Other Race37624770
Black18918920
Native American1010

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among white people with a rate of 42.98%.

Kailua Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$57,563$51,723$62,854
Graduate Degree$61,111$70,694$60,417
High School Graduate$33,547$41,864$27,886
Less Than 9th Grade$22,006$45,104$13,244
Overall$41,136$46,454$33,216
Some College$40,646$45,931$31,603

$41,136

Average Earnings

$46,454

Average Male

$33,216

Average Female

Kailua Earnings by Educational Attainment

Kailua Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Kailua Language

72.3% of Kailua residents speak only English, while 27.7% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 21.93% of the population.

Kailua Language

Kailua Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White8,7768209.34%
Multiple3,72251113.73%
Islander3,08849015.87%
Asian4,1733317.93%
Black2782910.43%
Hispanic1,970281.42%
Other1,077191.76%
Native1010100%

10.36%

Overall Poverty Rate

9.36%

Male Poverty Rate

11.43%

Female Poverty Rate

Poverty in Kailua

The race most likely to be in poverty in Kailua is Native, with 100% below the poverty level.

The race least likely to be in poverty in Kailua is Hispanic, with 1.42% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.25%. Among those working part-time, it was 9.88%, and for those that did not work, the poverty rate was 20.89%.

Kailua Poverty

rate

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Rate
Poverty
Less Than 9th Grade26.38%
High School12.89%
Some College10.86%
Bachelors or Greater4.85%

Kailua Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed38.33%
Female Unemployed29.35%
Male Employed4.95%
Female Employed3.96%

Kailua Poverty Rate by Employment Status and Sex

Kailua Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families$91,267$118,775
Households$87,268$127,283
Married Families$98,906$-999,999,999
Non Families$59,894$125,004

mean

median

Income by Household Type

Kailua Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

52.2%

Overall Marriage Rate

51.8%

Male Marriage Rate

52.7%

Female Marriage Rate

Kailua Married by Age and Sex

male

female

Kailua Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Kailua Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Kailua Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,205

Number of Veterans

1,093

Male Veterans

112

Female Veterans

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War
Veterans
Vietnam648
First Gulf War281
Second Gulf War170
Korea49
World War II41

Kailua Veterans by War

count

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Age Group
Veterans
65 to 74568
75+278
35 to 54210
55 to 64134
18 to 3415

Kailua Veterans by Age

count

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Name
Veterans
% of Total
White7428.9%
2+ Races1788.62%
Asian1704.77%
Hispanic12211.48%
Islander1125.03%
Other Race20.33%
Native American110%

Kailua Veterans by Race

Kailua Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

8.38%

Veteran Poverty Rate

33.36%

Veteran Disability Rate

Kailua Veterans by Education

LaborForceParticipation

64.6%

Labor Force Participation

62.2%

Employment Rate

3.7%

Unemployment Rate

Kailua Employment by Age

LaborForceParticipation

Kailua Employment by Race

LaborForceParticipation

Kailua Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

35.9%

Born in Kailua

77.59%

Native Born

22.41%

Foreign Born

14.39%

Non Citizen

8.02%

Naturalized

Place of Birth

77.59% of Kailua residents were born in the United States, with 35.9% having been born in Hawaii. 14.39% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Kailua Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202421,427-11-0.05%
202321,438-11-0.05%
202221,449-11-0.05%
202121,460-1,512-6.58%
202022,9727,74150.82%
201915,231-37-0.24%
201815,2681,1287.98%
201714,1405233.84%
201613,6179657.63%
201512,652-75-0.59%
201412,727-416-3.17%
201313,143-1,147-8.03%
201214,2908146.04%
201113,4761,50112.53%
201011,97500%
20009,8707448.15%
19909,1264,37592.09%
19804,751-16,676-77.83%

Kailua Population by Year