Jacksonville city, FL 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 937.69K Jacksonville city, FL population, the 25-29yrs age group constituted the highest percentage of the population (8.36%), followed by the 30-34yrs age group (8.05%), and the 35-39yrs age group (6.76%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (63.14%), followed by Children (0-17yrs) (22.95%), and Seniors (65yrs and Over) (13.91%).

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 also see similar information for other Florida cities and places, and for Florida.

Data Source: US Census Bureau.
Jacksonville city, FL Percentages of Population By Age Group in 2021
25-29yrs
30-34yrs
35-39yrs
55-59yrs
Under 5yrs
20-24yrs
10-14yrs
5-9yrs
40-44yrs
50-54yrs
Jacksonville city, FL Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Jacksonville city, FL Population By Age Group in 2021
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Age Group Number of People % of Total
25-29yrs 78348 8.36
30-34yrs 75465 8.05
35-39yrs 63359 6.76
55-59yrs 63292 6.75
Under 5yrs 63102 6.73
20-24yrs 60651 6.47
10-14yrs 59727 6.37
5-9yrs 59518 6.35
40-44yrs 58801 6.27
50-54yrs 58113 6.20
45-49yrs 56869 6.07
60-64yrs 55259 5.89
15-19yrs 54728 5.84
65-69yrs 46276 4.93
70-74yrs 34990 3.73
75-79yrs 21569 2.30
85yrs and Over 14252 1.52
80-84yrs 13371 1.43
Jacksonville city, FL Population By Age Cohort in 2021
0 of 0
Age Cohort Number of People % of Total
Adults (18-64yrs) 592011 63.14
Children (0-17yrs) 215221 22.95
Seniors (65yrs and Over) 130458 13.91