Marion County, Indiana Age & Gender Distribution (2024)
Population distribution by age and gender for Marion County, Indiana
Marion County, Indiana Age & Gender Statistics (2024)
Total Population
975,809
Median Age
34.4
Male Median
33.4
Female Median
35.3
Marion County, Indiana Population Growth
Marion County, Indiana Demographic Trend
Since 2010, the population of has changed by +9.5%%.
+9.5%% Growth
Marion County, Indiana Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Marion County, Indiana Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 34.4 | 975,809 |
| 2023 | 34.3 | 971,822 |
| 2022 | 34.4 | 971,737 |
| 2021 | 34.4 | 969,542 |
| 2020 | 34.4 | 957,337 |
| 2019 | 34.3 | 951,869 |
| 2018 | 34.4 | 944,523 |
| 2017 | 34.3 | 939,964 |
| 2016 | 34.1 | 932,142 |
| 2015 | 34.1 | 926,335 |
| 2014 | 34.0 | 919,336 |
| 2013 | 34.0 | 912,242 |
| 2012 | 33.9 | 904,535 |
| 2011 | 33.9 | 897,515 |
| 2010 | 34.0 | 890,976 |
Marion County, Indiana Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 7.0% |
| 5–17 | 18.0% |
| 18–24 | 9.4% |
| 25–34 | 16.6% |
| 35–54 | 24.6% |
| 55–64 | 11.2% |
| 65+ | 13.2% |
Dependency Ratios for Marion County, Indiana
- Total Dependency Ratio:
- 61.7
- Youth Dependency:
- 40.4
- Old-Age Dependency:
- 21.3
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Marion County, Indiana
The median age in Marion County, Indiana is 34.4 years.
According to latest Census data, the total population of Marion County, Indiana is 975,809.
In Marion County, Indiana, seniors (ages 65+) make up 13.2% of the population, while children under 18 represent 18.0%.
Based on historical data since 2010, the population in Marion County, Indiana has remained stable.