Hawaii Population By Age Group and Age Cohort in 2021 (ACS-5Yrs)

Updated on February 28, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, among the 1.45M Hawaii population, the 25-29yrs age group constituted the highest percentage of the total population (6.98%), followed by the 30-34yrs age group (6.95%), and the 35-39yrs age group (6.81%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (60.11%), followed by Children (0-17yrs) (21.40%), and Seniors (65yrs and Over) (18.49%).

The first and second charts below shows the percentage of the population by age group and age cohort respectively. The table below also shows the number and percentages for each age group and age cohort.

You can see similar information for other states, and the United States.

Related Topics: Hawaii ACS-5Yrs Estimates, 2021 Topic List.

Data Source: US Census - ACS 5-Year Estimates.

Hawaii Percentages of Population By Age Group in 2021

25-29yrs

30-34yrs

35-39yrs

60-64yrs

55-59yrs

20-24yrs

40-44yrs

50-54yrs

10-14yrs

Under 5yrs

Hawaii Percentages of Population By Age Cohort in 2021

Adults (18-64yrs)

Children (0-17yrs)

Seniors (65yrs and Over)

Hawaii Population By Age Group in 2021

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Age Group	Number of People	% of Total
25-29yrs	101516	6.98
30-34yrs	101024	6.95
35-39yrs	98981	6.81
60-64yrs	93207	6.41
55-59yrs	92283	6.35
20-24yrs	90807	6.25
40-44yrs	89464	6.16
50-54yrs	88078	6.06
10-14yrs	88005	6.06
Under 5yrs	87767	6.04
45-49yrs	87080	5.99
5-9yrs	86980	5.98
65-69yrs	86940	5.98
15-19yrs	79517	5.47
70-74yrs	68714	4.73
75-79yrs	45154	3.11
85yrs and Over	39221	2.70
80-84yrs	28760	1.98

Hawaii Population By Age Cohort in 2021

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Age Cohort	Number of People	% of Total
Adults (18-64yrs)	873689	60.11
Children (0-17yrs)	311020	21.40
Seniors (65yrs and Over)	268789	18.49