Decatur 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 24.33K Decatur city, GA population, the 5-9yrs age group constituted the highest percentage of the population (10.67%), followed by the 45-49yrs age group (10.31%), and the 10-14yrs age group (10.21%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (56.38%), followed by Children (0-17yrs) (32.17%), and Seniors (65yrs and Over) (11.45%).

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.
Decatur city, GA Percentages of Population By Age Group in 2021
5-9yrs
45-49yrs
10-14yrs
40-44yrs
35-39yrs
15-19yrs
Under 5yrs
55-59yrs
50-54yrs
60-64yrs
Decatur city, GA Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Decatur city, GA Population By Age Group in 2021
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Age Group Number of People % of Total
5-9yrs 2596 10.67
45-49yrs 2508 10.31
10-14yrs 2485 10.21
40-44yrs 2000 8.22
35-39yrs 1732 7.12
15-19yrs 1682 6.91
Under 5yrs 1675 6.88
55-59yrs 1572 6.46
50-54yrs 1382 5.68
60-64yrs 1297 5.33
30-34yrs 1109 4.56
65-69yrs 934 3.84
20-24yrs 775 3.19
70-74yrs 749 3.08
25-29yrs 735 3.02
75-79yrs 432 1.78
85yrs and Over 381 1.57
80-84yrs 290 1.19
Decatur city, GA Population By Age Cohort in 2021
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Age Cohort Number of People % of Total
Adults (18-64yrs) 13719 56.38
Children (0-17yrs) 7829 32.17
Seniors (65yrs and Over) 2786 11.45