Charleston County, SC population age distributions
A complete breakdown of Charleston County'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 | 23,044 | 5.62% |
| 5 to 9 years | 21,536 | 5.25% |
| 10 to 14 years | 22,392 | 5.46% |
| 15 to 19 years | 22,435 | 5.47% |
| 20 to 24 years | 24,893 | 6.07% |
| 25 to 29 years | 31,936 | 7.79% |
| 30 to 34 years | 33,909 | 8.27% |
| 35 to 39 years | 30,922 | 7.54% |
| 40 to 44 years | 25,957 | 6.33% |
| 45 to 49 years | 23,669 | 5.78% |
| 50 to 54 years | 24,596 | 6% |
| 55 to 59 years | 27,214 | 6.64% |
| 60 to 64 years | 26,437 | 6.45% |
| 65 to 69 years | 22,984 | 5.61% |
| 70 to 74 years | 20,832 | 5.08% |
| 75 to 79 years | 10,500 | 2.56% |
| 80 to 84 years | 8,048 | 1.96% |
| 85 years and over | 8,536 | 2.08% |
TABLE OF CONTENTS
Charleston County, SC population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
Charleston County, SC population by age group.
The largest age group is 30 to 34 years with a population of 33,909 (8.27% of the total population).
The largest age group in Charleston County, SC was for the group of age 30 to 34 years with a population of 33,909 (8.27%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in Charleston County, SC was the 80 to 84 years with a population of 8,048 (1.96%).
Charleston County, SC population by age cohort
To better understand the age distribution of Charleston County, 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
FIGURE 2
Charleston County, SC population by age cohort
The largest age group was 18 to 64 years with a population of 259,404 (63.29% of the total population).
Charleston County, SC population by age cohort
Here's the population for each of the three cohorts.
| Age Group | Population | % of Total Population |
|---|---|---|
| Under 18 years | 79,536 | 19.41% |
| 18 to 64 years | 259,404 | 63.29% |
| 65 years and over | 70,900 | 17.3% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Charleston County 's population under 18 was 19.41%, compared to the 22.11% nationwide.
- Charleston County's working population (between 18 and 64) was 63.29%, compared to 61.36% nationwide.
- Charleston County's elderly or the senior population (over 65 age) was 17.30% as compared to 16.53% nationwide.
Charleston County, SC population pyramid
Population pyramid for Charleston County, 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 Charleston County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Charleston County, SC, is 24.6.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Charleston County, SC, is 26.1.
- Total dependency ratio for Charleston County, SC is 50.7.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Charleston County, SC is 3.8.
FIGURE 3
Charleston County, SC population pyramid
Charleston County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Charleston County, SC population pyramid
Here's the Charleston County, SC's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 11,879 | 11,165 | 23,044 |
| 5 to 9 years | 11,291 | 10,245 | 21,536 |
| 10 to 14 years | 11,030 | 11,362 | 22,392 |
| 15 to 19 years | 11,304 | 11,131 | 22,435 |
| 20 to 24 years | 12,693 | 12,200 | 24,893 |
| 25 to 29 years | 15,529 | 16,407 | 31,936 |
| 30 to 34 years | 16,603 | 17,306 | 33,909 |
| 35 to 39 years | 15,742 | 15,180 | 30,922 |
| 40 to 44 years | 12,609 | 13,348 | 25,957 |
| 45 to 49 years | 11,872 | 11,797 | 23,669 |
| 50 to 54 years | 12,066 | 12,530 | 24,596 |
| 55 to 59 years | 12,808 | 14,406 | 27,214 |
| 60 to 64 years | 12,266 | 14,171 | 26,437 |
| 65 to 69 years | 10,802 | 12,182 | 22,984 |
| 70 to 74 years | 9,406 | 11,426 | 20,832 |
| 75 to 79 years | 4,666 | 5,834 | 10,500 |
| 80 to 84 years | 3,051 | 4,997 | 8,048 |
| 85 years and over | 3,432 | 5,104 | 8,536 |
Things to know
What is the population of Charleston County, SC under 18?
Charleston County's population under the age of 18 is 79,536, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 19.41% of the total resident population of Charleston County, SC.
What is the aging population in Charleston County, SC?
Charleston County's population aged 65 years and above was 70,900. As per the U.S. Census Bureau's American Community Survey, this population is 17.30% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates