Marietta 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 60.96K Marietta city, GA population, the 30-34yrs age group constituted the highest percentage of the population (8.95%), followed by the 20-24yrs age group (8.43%), and the 25-29yrs age group (8.08%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (65.35%), followed by Children (0-17yrs) (21.26%), and Seniors (65yrs and Over) (13.40%).

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.
Marietta city, GA Percentages of Population By Age Group in 2021
30-34yrs
20-24yrs
25-29yrs
35-39yrs
15-19yrs
40-44yrs
10-14yrs
5-9yrs
Under 5yrs
60-64yrs
Marietta city, GA Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Marietta city, GA Population By Age Group in 2021
0 of 0
Age Group Number of People % of Total
30-34yrs 5456 8.95
20-24yrs 5139 8.43
25-29yrs 4928 8.08
35-39yrs 4638 7.61
15-19yrs 4370 7.17
40-44yrs 4228 6.94
10-14yrs 3783 6.21
5-9yrs 3723 6.11
Under 5yrs 3612 5.93
60-64yrs 3416 5.60
55-59yrs 3291 5.40
45-49yrs 3191 5.23
50-54yrs 3020 4.95
70-74yrs 2475 4.06
65-69yrs 2440 4.00
85yrs and Over 1459 2.39
75-79yrs 991 1.63
80-84yrs 802 1.32
Marietta city, GA Population By Age Cohort in 2021
0 of 0
Age Cohort Number of People % of Total
Adults (18-64yrs) 39837 65.35
Children (0-17yrs) 12958 21.26
Seniors (65yrs and Over) 8167 13.40