Grundy County, Iowa Age & Gender Distribution (2024)
Population distribution by age and gender for Grundy County, Iowa
Grundy County, Iowa Age & Gender Statistics (2024)
Total Population
12,384
Median Age
41.9
Male Median
41.0
Female Median
42.7
Grundy County, Iowa Population Growth
Grundy County, Iowa Demographic Trend
Since 2010, the population of has changed by -0.1%%.
-0.1%% Growth
Grundy County, Iowa Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Grundy County, Iowa Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 41.9 | 12,384 |
| 2023 | 41.5 | 12,352 |
| 2022 | 41.6 | 12,351 |
| 2021 | 42.0 | 12,336 |
| 2020 | 42.4 | 12,262 |
| 2019 | 42.6 | 12,299 |
| 2018 | 42.5 | 12,341 |
| 2017 | 42.4 | 12,354 |
| 2016 | 42.5 | 12,373 |
| 2015 | 42.2 | 12,407 |
| 2014 | 42.4 | 12,403 |
| 2013 | 42.3 | 12,416 |
| 2012 | 42.5 | 12,431 |
| 2011 | 42.4 | 12,407 |
| 2010 | 42.5 | 12,401 |
Grundy County, Iowa Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.7% |
| 5–17 | 17.8% |
| 18–24 | 6.8% |
| 25–34 | 10.7% |
| 35–54 | 24.6% |
| 55–64 | 13.5% |
| 65+ | 21.0% |
Dependency Ratios for Grundy County, Iowa
- Total Dependency Ratio:
- 80.0
- Youth Dependency:
- 42.2
- Old-Age Dependency:
- 37.8
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Grundy County, Iowa
The median age in Grundy County, Iowa is 41.9 years.
According to latest Census data, the total population of Grundy County, Iowa is 12,384.
In Grundy County, Iowa, seniors (ages 65+) make up 21.0% of the population, while children under 18 represent 17.8%.
Based on historical data since 2010, the population in Grundy County, Iowa has remained stable.