Hamilton County, IN population age distributions
A complete breakdown of Hamilton 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 | 21,396 | 5.99% |
| 5 to 9 years | 26,235 | 7.35% |
| 10 to 14 years | 27,624 | 7.73% |
| 15 to 19 years | 25,263 | 7.07% |
| 20 to 24 years | 20,005 | 5.6% |
| 25 to 29 years | 19,832 | 5.55% |
| 30 to 34 years | 22,302 | 6.24% |
| 35 to 39 years | 27,304 | 7.64% |
| 40 to 44 years | 26,637 | 7.46% |
| 45 to 49 years | 25,207 | 7.06% |
| 50 to 54 years | 24,808 | 6.95% |
| 55 to 59 years | 22,597 | 6.33% |
| 60 to 64 years | 19,960 | 5.59% |
| 65 to 69 years | 16,637 | 4.66% |
| 70 to 74 years | 12,876 | 3.6% |
| 75 to 79 years | 8,996 | 2.52% |
| 80 to 84 years | 4,043 | 1.13% |
| 85 years and over | 5,454 | 1.53% |
TABLE OF CONTENTS
Hamilton County, IN population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2019-2023
FIGURE 1
Hamilton County, IN population by age group.
The largest age group is 10 to 14 years with a population of 27,624 (7.73% of the total population).
The largest age group in Hamilton County, IN was for the group of age 10 to 14 years with a population of 27,624 (7.73%), according to the 2019-2023 American Community Survey.
At the same time, the smallest age group in Hamilton County, IN was the 80 to 84 years with a population of 4,043 (1.13%).
Hamilton County, IN population by age cohort
To better understand the age distribution of Hamilton County, IN'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
Hamilton County, IN population by age cohort
The largest age group was 18 to 64 years with a population of 216,742 (60.68% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Hamilton County 's population under 18 was 25.88%, compared to the 22.16% nationwide.
- Hamilton County's working population (between 18 and 64) was 60.68%, compared to 61% nationwide.
- Hamilton County's elderly or the senior population (over 65 age) was 13.44% as compared to 16.84% nationwide.
Hamilton County, IN population pyramid
Population pyramid for Hamilton County, IN 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 Hamilton County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Hamilton County, IN, is 32.2.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Hamilton County, IN, is 20.5.
- Total dependency ratio for Hamilton County, IN is 52.7.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Hamilton County, IN is 4.9.
FIGURE 3
Hamilton County, IN population pyramid
Hamilton County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Hamilton County, IN population pyramid
Here's the Hamilton County, IN's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 10,882 | 10,514 | 21,396 |
| 5 to 9 years | 13,684 | 12,551 | 26,235 |
| 10 to 14 years | 13,914 | 13,710 | 27,624 |
| 15 to 19 years | 12,975 | 12,288 | 25,263 |
| 20 to 24 years | 10,010 | 9,995 | 20,005 |
| 25 to 29 years | 9,753 | 10,079 | 19,832 |
| 30 to 34 years | 10,802 | 11,500 | 22,302 |
| 35 to 39 years | 13,792 | 13,512 | 27,304 |
| 40 to 44 years | 12,471 | 14,166 | 26,637 |
| 45 to 49 years | 12,576 | 12,631 | 25,207 |
| 50 to 54 years | 12,454 | 12,354 | 24,808 |
| 55 to 59 years | 10,969 | 11,628 | 22,597 |
| 60 to 64 years | 9,887 | 10,073 | 19,960 |
| 65 to 69 years | 7,427 | 9,210 | 16,637 |
| 70 to 74 years | 6,336 | 6,540 | 12,876 |
| 75 to 79 years | 4,153 | 4,843 | 8,996 |
| 80 to 84 years | 1,652 | 2,391 | 4,043 |
| 85 years and over | 1,835 | 3,619 | 5,454 |
Things to know
What is the population of Hamilton County, IN under 18?
Hamilton County's population under the age of 18 is 92,428, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 25.88% of the total resident population of Hamilton County, IN.
What is the aging population in Hamilton County, IN?
Hamilton County's population aged 65 years and above was 48,006. As per the U.S. Census Bureau's American Community Survey, this population is 13.44% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates