Atlanta city, GA 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 492.20K Atlanta city, GA population, the 25-29yrs age group constituted the highest percentage of the population (11.80%), followed by the 30-34yrs age group (9.82%), and the 20-24yrs age group (9.67%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (70.99%), followed by Children (0-17yrs) (17.42%), and Seniors (65yrs and Over) (11.59%).

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 Georgia cities and places, and for Georgia.

Data Source: US Census Bureau.
Atlanta city, GA Percentages of Population By Age Group in 2021
25-29yrs
30-34yrs
20-24yrs
35-39yrs
15-19yrs
40-44yrs
45-49yrs
50-54yrs
Under 5yrs
5-9yrs
Atlanta city, GA Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Atlanta city, GA Population By Age Group in 2021
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Age Group Number of People % of Total
25-29yrs 58098 11.80
30-34yrs 48321 9.82
20-24yrs 47584 9.67
35-39yrs 39304 7.99
15-19yrs 32489 6.60
40-44yrs 30673 6.23
45-49yrs 28755 5.84
50-54yrs 27190 5.52
Under 5yrs 26250 5.33
5-9yrs 25745 5.23
55-59yrs 25046 5.09
60-64yrs 24370 4.95
10-14yrs 21334 4.33
65-69yrs 20030 4.07
70-74yrs 14582 2.96
75-79yrs 9253 1.88
85yrs and Over 6863 1.39
80-84yrs 6317 1.28
Atlanta city, GA Population By Age Cohort in 2021
0 of 0
Age Cohort Number of People % of Total
Adults (18-64yrs) 349415 70.99
Children (0-17yrs) 85744 17.42
Seniors (65yrs and Over) 57045 11.59