St. Marys 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 18.20K St. Marys city, GA population, the 25-29yrs age group constituted the highest percentage of the population (8.15%), followed by the Under 5yrs age group (7.52%), and the 20-24yrs age group (7.47%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (59.48%), followed by Children (0-17yrs) (25.76%), and Seniors (65yrs and Over) (14.76%).

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.
St. Marys city, GA Percentages of Population By Age Group in 2021
25-29yrs
Under 5yrs
20-24yrs
15-19yrs
10-14yrs
40-44yrs
50-54yrs
30-34yrs
5-9yrs
35-39yrs
St. Marys city, GA Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
St. Marys city, GA Population By Age Group in 2021
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Age Group Number of People % of Total
25-29yrs 1483 8.15
Under 5yrs 1369 7.52
20-24yrs 1359 7.47
15-19yrs 1344 7.39
10-14yrs 1340 7.36
40-44yrs 1222 6.71
50-54yrs 1188 6.53
30-34yrs 1150 6.32
5-9yrs 1061 5.83
35-39yrs 1031 5.67
55-59yrs 1031 5.67
60-64yrs 1025 5.63
70-74yrs 938 5.15
45-49yrs 910 5.00
65-69yrs 783 4.30
75-79yrs 575 3.16
80-84yrs 261 1.43
85yrs and Over 130 0.71
St. Marys city, GA Population By Age Cohort in 2021
0 of 0
Age Cohort Number of People % of Total
Adults (18-64yrs) 10825 59.48
Children (0-17yrs) 4688 25.76
Seniors (65yrs and Over) 2687 14.76