Black Hawk County, Iowa Age & Gender Distribution (2024)
Population distribution by age and gender for Black Hawk County, Iowa
Black Hawk County, Iowa Age & Gender Statistics (2024)
Total Population
131,049
Median Age
35.7
Male Median
35.2
Female Median
36.3
Black Hawk County, Iowa Population Growth
Black Hawk County, Iowa Demographic Trend
Since 2010, the population of has changed by +1.4%%.
+1.4%% Growth
Black Hawk County, Iowa Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Black Hawk County, Iowa Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 35.7 | 131,049 |
| 2023 | 35.7 | 130,693 |
| 2022 | 35.5 | 131,041 |
| 2021 | 35.6 | 131,396 |
| 2020 | 35.4 | 131,813 |
| 2019 | 35.2 | 132,393 |
| 2018 | 34.9 | 133,009 |
| 2017 | 34.9 | 132,960 |
| 2016 | 34.8 | 132,821 |
| 2015 | 34.7 | 132,496 |
| 2014 | 34.6 | 131,947 |
| 2013 | 34.6 | 131,468 |
| 2012 | 34.6 | 130,843 |
| 2011 | 34.5 | 130,060 |
| 2010 | 34.7 | 129,252 |
Black Hawk County, Iowa Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 6.1% |
| 5–17 | 15.8% |
| 18–24 | 14.5% |
| 25–34 | 12.6% |
| 35–54 | 22.1% |
| 55–64 | 11.2% |
| 65+ | 17.7% |
Dependency Ratios for Black Hawk County, Iowa
- Total Dependency Ratio:
- 65.5
- Youth Dependency:
- 36.3
- Old-Age Dependency:
- 29.2
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Black Hawk County, Iowa
The median age in Black Hawk County, Iowa is 35.7 years.
According to latest Census data, the total population of Black Hawk County, Iowa is 131,049.
In Black Hawk County, Iowa, seniors (ages 65+) make up 17.7% of the population, while children under 18 represent 15.8%.
Based on historical data since 2010, the population in Black Hawk County, Iowa has remained stable.