Peoria County, IL population age distributions
A complete breakdown of Peoria 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 | 12,068 | 6.66% |
| 5 to 9 years | 12,978 | 7.16% |
| 10 to 14 years | 10,889 | 6.01% |
| 15 to 19 years | 11,907 | 6.57% |
| 20 to 24 years | 11,500 | 6.35% |
| 25 to 29 years | 12,085 | 6.67% |
| 30 to 34 years | 11,880 | 6.56% |
| 35 to 39 years | 11,597 | 6.4% |
| 40 to 44 years | 10,727 | 5.92% |
| 45 to 49 years | 10,400 | 5.74% |
| 50 to 54 years | 10,670 | 5.89% |
| 55 to 59 years | 10,775 | 5.95% |
| 60 to 64 years | 11,666 | 6.44% |
| 65 to 69 years | 9,682 | 5.34% |
| 70 to 74 years | 8,781 | 4.85% |
| 75 to 79 years | 5,873 | 3.24% |
| 80 to 84 years | 3,373 | 1.86% |
| 85 years and over | 4,335 | 2.39% |
TABLE OF CONTENTS
Peoria County, IL population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
Peoria County, IL population by age group.
The largest age group is 5 to 9 years with a population of 12,978 (7.16% of the total population).
The largest age group in Peoria County, IL was for the group of age 5 to 9 years with a population of 12,978 (7.16%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in Peoria County, IL was the 80 to 84 years with a population of 3,373 (1.86%).
Peoria County, IL population by age cohort
To better understand the age distribution of Peoria County, IL'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
Peoria County, IL population by age cohort
The largest age group was 18 to 64 years with a population of 106,169 (58.60% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Peoria County 's population under 18 was 23.72%, compared to the 22.11% nationwide.
- Peoria County's working population (between 18 and 64) was 58.60%, compared to 61.36% nationwide.
- Peoria County's elderly or the senior population (over 65 age) was 17.69% as compared to 16.53% nationwide.
Peoria County, IL population pyramid
Population pyramid for Peoria County, IL 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 Peoria County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Peoria County, IL, is 31.7.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Peoria County, IL, is 28.3.
- Total dependency ratio for Peoria County, IL is 60.0.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Peoria County, IL is 3.5.
FIGURE 3
Peoria County, IL population pyramid
Peoria County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Peoria County, IL population pyramid
Here's the Peoria County, IL's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 6,186 | 5,882 | 12,068 |
| 5 to 9 years | 6,548 | 6,430 | 12,978 |
| 10 to 14 years | 5,758 | 5,131 | 10,889 |
| 15 to 19 years | 6,025 | 5,882 | 11,907 |
| 20 to 24 years | 5,646 | 5,854 | 11,500 |
| 25 to 29 years | 5,975 | 6,110 | 12,085 |
| 30 to 34 years | 5,858 | 6,022 | 11,880 |
| 35 to 39 years | 5,830 | 5,767 | 11,597 |
| 40 to 44 years | 5,401 | 5,326 | 10,727 |
| 45 to 49 years | 5,080 | 5,320 | 10,400 |
| 50 to 54 years | 5,257 | 5,413 | 10,670 |
| 55 to 59 years | 5,351 | 5,424 | 10,775 |
| 60 to 64 years | 5,461 | 6,205 | 11,666 |
| 65 to 69 years | 4,543 | 5,139 | 9,682 |
| 70 to 74 years | 4,123 | 4,658 | 8,781 |
| 75 to 79 years | 2,630 | 3,243 | 5,873 |
| 80 to 84 years | 1,380 | 1,993 | 3,373 |
| 85 years and over | 1,425 | 2,910 | 4,335 |
Things to know
What is the population of Peoria County, IL under 18?
Peoria County's population under the age of 18 is 42,973, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.72% of the total resident population of Peoria County, IL.
What is the aging population in Peoria County, IL?
Peoria County's population aged 65 years and above was 32,044. As per the U.S. Census Bureau's American Community Survey, this population is 17.69% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates