North Charleston, SC population age distribution
A complete breakdown of North Charleston's age demographics from 0 to 85 years, distributed across 18 age groups is listed in the table below.
Age Group | Population | % of Total Population |
---|---|---|
Under 5 years | 7,676 | 6.7% |
5 to 9 years | 8,468 | 7.39% |
10 to 14 years | 7,246 | 6.33% |
15 to 19 years | 6,949 | 6.07% |
20 to 24 years | 7,180 | 6.27% |
25 to 29 years | 11,659 | 10.18% |
30 to 34 years | 10,608 | 9.26% |
35 to 39 years | 8,769 | 7.66% |
40 to 44 years | 6,745 | 5.89% |
45 to 49 years | 6,018 | 5.25% |
50 to 54 years | 6,947 | 6.07% |
55 to 59 years | 7,431 | 6.49% |
60 to 64 years | 5,748 | 5.02% |
65 to 69 years | 4,896 | 4.27% |
70 to 74 years | 3,430 | 2.99% |
75 to 79 years | 2,236 | 1.95% |
80 to 84 years | 1,362 | 1.19% |
85 years and over | 1,174 | 1.02% |
TABLE OF CONTENTS
North Charleston, SC population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The largest age group in North Charleston, SC was for the group of age 25-29 years with a population of 11,659 (10.18%), according to the 2021 American Community Survey.
At the same time, the smallest age group in North Charleston, SC was the 85+ years with a population of 1,174 (1.02%).
North Charleston, SC population by age cohort
To better understand the age distribution of North Charleston, SC's population, we divided it into the following 3 cohorts:
- Children : Under the age of 18 years
- Adults (working population): Between the age of 18 and 64 years
- Seniors: 65 years and above

Here's the population for each of the three cohorts.
Age Group | Population | % of Total Population |
---|---|---|
Under 18 years | 26,999 | 23.57% |
18 to 64 years | 74,445 | 64.99% |
85 years and over | 13,098 | 11.44% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- North Charleston's population under 18 was 23.57%, compared to the 22.51% nationwide.
- North Charleston's working population (between 18 and 64) was 64.99%, compared to 61.45% nationwide.
- North Charleston's elderly or the senior population (over 65 age) was 11.44% as compared to 16.04% nationwide.
North Charleston, SC population pyramid
Population pyramid for North Charleston, SC is charted below using the estimates from U.S. Census Bureau's American Community Survey 5-Year estimates. A wide base suggests population increase, narrow base indicates declining birth rates.
Key stats from our analysis of the North Charleston's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for North Charleston, SC, is 30.0.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for North Charleston, SC, is 16.8.
- Total dependency ratio for North Charleston, SC is 46.7.
- Potential support ratio, which is the number of youth (working age population) per elderly, for North Charleston, SC is 6.0.

Here's the North Charleston, SC's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 4,167 | 3,509 | 7,676 |
5 to 9 years | 4,768 | 3,700 | 8,468 |
10 to 14 years | 3,558 | 3,688 | 7,246 |
15 to 19 years | 3,577 | 3,372 | 6,949 |
20 to 24 years | 4,036 | 3,144 | 7,180 |
25 to 29 years | 5,965 | 5,694 | 11,659 |
30 to 34 years | 5,376 | 5,232 | 10,608 |
35 to 39 years | 4,444 | 4,325 | 8,769 |
40 to 44 years | 3,300 | 3,445 | 6,745 |
45 to 49 years | 2,892 | 3,126 | 6,018 |
50 to 54 years | 3,663 | 3,284 | 6,947 |
55 to 59 years | 3,631 | 3,800 | 7,431 |
60 to 64 years | 2,531 | 3,217 | 5,748 |
65 to 69 years | 2,290 | 2,606 | 4,896 |
70 to 74 years | 1,456 | 1,974 | 3,430 |
75 to 79 years | 678 | 1,558 | 2,236 |
80 to 84 years | 693 | 669 | 1,362 |
85 years and over | 377 | 797 | 1,174 |
Things to know
What is the population of North Charleston, SC under 18?
North Charleston's population under the age of 18 is 26,999, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.57% of the total resident population of North Charleston, SC.
What is the aging population in North Charleston, SC?
North Charleston's population aged 65 years and above was 13,098. As per the U.S. Census Bureau's American Community Survey, this population is 11.44% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates