Black Hawk County, IA population age distributions
A complete breakdown of Black Hawk 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 | 8,021 | 6.12% |
| 5 to 9 years | 7,886 | 6.02% |
| 10 to 14 years | 7,848 | 5.99% |
| 15 to 19 years | 9,497 | 7.25% |
| 20 to 24 years | 14,838 | 11.32% |
| 25 to 29 years | 8,786 | 6.7% |
| 30 to 34 years | 7,637 | 5.83% |
| 35 to 39 years | 8,506 | 6.49% |
| 40 to 44 years | 7,160 | 5.46% |
| 45 to 49 years | 6,518 | 4.97% |
| 50 to 54 years | 6,664 | 5.09% |
| 55 to 59 years | 7,148 | 5.45% |
| 60 to 64 years | 8,089 | 6.17% |
| 65 to 69 years | 7,248 | 5.53% |
| 70 to 74 years | 5,830 | 4.45% |
| 75 to 79 years | 4,087 | 3.12% |
| 80 to 84 years | 2,653 | 2.02% |
| 85 years and over | 2,625 | 2% |
TABLE OF CONTENTS
Black Hawk County, IA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
Black Hawk County, IA population by age group.
The largest age group is 20 to 24 years with a population of 14,838 (11.32% of the total population).
The largest age group in Black Hawk County, IA was for the group of age 20 to 24 years with a population of 14,838 (11.32%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in Black Hawk County, IA was the 85 years and over with a population of 2,625 (2%).
Black Hawk County, IA population by age cohort
To better understand the age distribution of Black Hawk County, IA'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
Black Hawk County, IA population by age cohort
The largest age group was 18 to 64 years with a population of 80,213 (61.21% of the total population).
Black Hawk County, IA population by age cohort
Here's the population for each of the three cohorts.
| Age Group | Population | % of Total Population |
|---|---|---|
| Under 18 years | 28,385 | 21.66% |
| 18 to 64 years | 80,213 | 61.21% |
| 65 years and over | 22,443 | 17.13% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Black Hawk County 's population under 18 was 21.66%, compared to the 22.11% nationwide.
- Black Hawk County's working population (between 18 and 64) was 61.21%, compared to 61.36% nationwide.
- Black Hawk County's elderly or the senior population (over 65 age) was 17.13% as compared to 16.53% nationwide.
Black Hawk County, IA population pyramid
Population pyramid for Black Hawk County, IA 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 Black Hawk County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Black Hawk County, IA, is 28.0.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Black Hawk County, IA, is 26.5.
- Total dependency ratio for Black Hawk County, IA is 54.5.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Black Hawk County, IA is 3.8.
FIGURE 3
Black Hawk County, IA population pyramid
Black Hawk County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Black Hawk County, IA population pyramid
Here's the Black Hawk County, IA's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 4,093 | 3,928 | 8,021 |
| 5 to 9 years | 4,225 | 3,661 | 7,886 |
| 10 to 14 years | 3,822 | 4,026 | 7,848 |
| 15 to 19 years | 4,471 | 5,026 | 9,497 |
| 20 to 24 years | 7,335 | 7,503 | 14,838 |
| 25 to 29 years | 4,533 | 4,253 | 8,786 |
| 30 to 34 years | 3,943 | 3,694 | 7,637 |
| 35 to 39 years | 4,303 | 4,203 | 8,506 |
| 40 to 44 years | 3,780 | 3,380 | 7,160 |
| 45 to 49 years | 3,330 | 3,188 | 6,518 |
| 50 to 54 years | 3,346 | 3,318 | 6,664 |
| 55 to 59 years | 3,658 | 3,490 | 7,148 |
| 60 to 64 years | 3,729 | 4,360 | 8,089 |
| 65 to 69 years | 3,623 | 3,625 | 7,248 |
| 70 to 74 years | 2,647 | 3,183 | 5,830 |
| 75 to 79 years | 1,846 | 2,241 | 4,087 |
| 80 to 84 years | 1,083 | 1,570 | 2,653 |
| 85 years and over | 865 | 1,760 | 2,625 |
Things to know
What is the population of Black Hawk County, IA under 18?
Black Hawk County's population under the age of 18 is 28,385, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 21.66% of the total resident population of Black Hawk County, IA.
What is the aging population in Black Hawk County, IA?
Black Hawk County's population aged 65 years and above was 22,443. As per the U.S. Census Bureau's American Community Survey, this population is 17.13% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates