McCook County, South Dakota Age & Gender Distribution (2024)
Population distribution by age and gender for McCook County, South Dakota
McCook County, South Dakota Age & Gender Statistics (2024)
Total Population
5,751
Median Age
39.5
Male Median
39.6
Female Median
39.4
McCook County, South Dakota Population Growth
McCook County, South Dakota Demographic Trend
Since 2010, the population of has changed by +2.0%%.
+2.0%% Growth
McCook County, South Dakota Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
McCook County, South Dakota Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 39.5 | 5,751 |
| 2023 | 39.9 | 5,732 |
| 2022 | 39.5 | 5,714 |
| 2021 | 39.3 | 5,676 |
| 2020 | 39.4 | 5,543 |
| 2019 | 39.3 | 5,548 |
| 2018 | 40.0 | 5,511 |
| 2017 | 40.7 | 5,515 |
| 2016 | 42.4 | 5,616 |
| 2015 | 42.8 | 5,613 |
| 2014 | 42.9 | 5,615 |
| 2013 | 42.7 | 5,605 |
| 2012 | 42.4 | 5,592 |
| 2011 | 42.3 | 5,613 |
| 2010 | 42.8 | 5,639 |
McCook County, South Dakota Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 7.8% |
| 5–17 | 20.7% |
| 18–24 | 6.7% |
| 25–34 | 10.8% |
| 35–54 | 22.8% |
| 55–64 | 12.4% |
| 65+ | 18.8% |
Dependency Ratios for McCook County, South Dakota
- Total Dependency Ratio:
- 89.7
- Youth Dependency:
- 54.0
- Old-Age Dependency:
- 35.7
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for McCook County, South Dakota
The median age in McCook County, South Dakota is 39.5 years.
According to latest Census data, the total population of McCook County, South Dakota is 5,751.
In McCook County, South Dakota, seniors (ages 65+) make up 18.8% of the population, while children under 18 represent 20.7%.
Based on historical data since 2010, the population in McCook County, South Dakota is becoming younger.