Day County, SD population age distributions
A complete breakdown of Day 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 | 323 | 5.89% |
| 5 to 9 years | 277 | 5.05% |
| 10 to 14 years | 367 | 6.69% |
| 15 to 19 years | 396 | 7.22% |
| 20 to 24 years | 213 | 3.88% |
| 25 to 29 years | 242 | 4.41% |
| 30 to 34 years | 288 | 5.25% |
| 35 to 39 years | 250 | 4.56% |
| 40 to 44 years | 320 | 5.83% |
| 45 to 49 years | 231 | 4.21% |
| 50 to 54 years | 289 | 5.27% |
| 55 to 59 years | 446 | 8.13% |
| 60 to 64 years | 413 | 7.53% |
| 65 to 69 years | 444 | 8.09% |
| 70 to 74 years | 353 | 6.44% |
| 75 to 79 years | 208 | 3.79% |
| 80 to 84 years | 190 | 3.46% |
| 85 years and over | 235 | 4.28% |
TABLE OF CONTENTS
Day County, SD population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
Day County, SD population by age group.
The largest age group is 55 to 59 years with a population of 446 (8.13% of the total population).
The largest age group in Day County, SD was for the group of age 55 to 59 years with a population of 446 (8.13%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in Day County, SD was the 80 to 84 years with a population of 190 (3.46%).
Day County, SD population by age cohort
To better understand the age distribution of Day County, SD'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
Day County, SD population by age cohort
The largest age group was 18 to 64 years with a population of 2,825 (51.50% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Day County 's population under 18 was 22.42%, compared to the 22.11% nationwide.
- Day County's working population (between 18 and 64) was 51.50%, compared to 61.36% nationwide.
- Day County's elderly or the senior population (over 65 age) was 26.07% as compared to 16.53% nationwide.
Day County, SD population pyramid
Population pyramid for Day County, SD 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 Day County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Day County, SD, is 31.3.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Day County, SD, is 46.3.
- Total dependency ratio for Day County, SD is 77.6.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Day County, SD is 2.2.
FIGURE 3
Day County, SD population pyramid
Day County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Day County, SD population pyramid
Here's the Day County, SD's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 173 | 150 | 323 |
| 5 to 9 years | 106 | 171 | 277 |
| 10 to 14 years | 225 | 142 | 367 |
| 15 to 19 years | 186 | 210 | 396 |
| 20 to 24 years | 128 | 85 | 213 |
| 25 to 29 years | 131 | 111 | 242 |
| 30 to 34 years | 145 | 143 | 288 |
| 35 to 39 years | 143 | 107 | 250 |
| 40 to 44 years | 168 | 152 | 320 |
| 45 to 49 years | 134 | 97 | 231 |
| 50 to 54 years | 135 | 154 | 289 |
| 55 to 59 years | 221 | 225 | 446 |
| 60 to 64 years | 242 | 171 | 413 |
| 65 to 69 years | 250 | 194 | 444 |
| 70 to 74 years | 162 | 191 | 353 |
| 75 to 79 years | 88 | 120 | 208 |
| 80 to 84 years | 90 | 100 | 190 |
| 85 years and over | 94 | 141 | 235 |
Things to know
What is the population of Day County, SD under 18?
Day County's population under the age of 18 is 1,230, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 22.42% of the total resident population of Day County, SD.
What is the aging population in Day County, SD?
Day County's population aged 65 years and above was 1,430. As per the U.S. Census Bureau's American Community Survey, this population is 26.07% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates