Charles County, MD 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 165.21K Charles County, MD population, the 50-54yrs age group constituted the highest percentage of the total population (7.92%), followed by the 55-59yrs age group (7.66%), and the 45-49yrs age group (7.31%).

In the case of age cohorts, Adults (18-64yrs) constituted the highest percentage of the total population (63.43%), followed by Children (0-17yrs) (24.13%), and Seniors (65yrs and Over) (12.44%).

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 see similar information for other Maryland counties, and for Maryland.

Charles County, MD Percentages of Population By Age Group in 2021
50-54yrs
55-59yrs
45-49yrs
10-14yrs
15-19yrs
5-9yrs
35-39yrs
40-44yrs
30-34yrs
25-29yrs
Charles County, MD Percentages of Population By Age Cohort in 2021
Adults (18-64yrs)
Children (0-17yrs)
Seniors (65yrs and Over)
Charles County, MD Population By Age Group in 2021
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Age Group Number of People % of Total
50-54yrs 13091 7.92
55-59yrs 12653 7.66
45-49yrs 12078 7.31
10-14yrs 11789 7.14
15-19yrs 11369 6.88
5-9yrs 10996 6.66
35-39yrs 10955 6.63
40-44yrs 10663 6.45
30-34yrs 10651 6.45
25-29yrs 10403 6.30
60-64yrs 10204 6.18
20-24yrs 10158 6.15
Under 5yrs 9644 5.84
65-69yrs 7259 4.39
70-74yrs 5663 3.43
75-79yrs 3394 2.05
80-84yrs 2168 1.31
85yrs and Over 2071 1.25
Charles County, MD Population By Age Cohort in 2021
0 of 0
Age Cohort Number of People % of Total
Adults (18-64yrs) 104791 63.43
Children (0-17yrs) 39863 24.13
Seniors (65yrs and Over) 20555 12.44