Big Rock, IL population age distributions
A complete breakdown of Big Rock'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 | 90 | 7.37% |
| 5 to 9 years | 86 | 7.04% |
| 10 to 14 years | 97 | 7.94% |
| 15 to 19 years | 68 | 5.57% |
| 20 to 24 years | 28 | 2.29% |
| 25 to 29 years | 38 | 3.11% |
| 30 to 34 years | 92 | 7.53% |
| 35 to 39 years | 51 | 4.18% |
| 40 to 44 years | 72 | 5.9% |
| 45 to 49 years | 78 | 6.39% |
| 50 to 54 years | 47 | 3.85% |
| 55 to 59 years | 132 | 10.81% |
| 60 to 64 years | 107 | 8.76% |
| 65 to 69 years | 57 | 4.67% |
| 70 to 74 years | 46 | 3.77% |
| 75 to 79 years | 53 | 4.34% |
| 80 to 84 years | 36 | 2.95% |
| 85 years and over | 43 | 3.52% |
TABLE OF CONTENTS
Big Rock, IL population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
Big Rock, IL population by age group.
The largest age group is 55 to 59 years with a population of 132 (10.81% of the total population).
The largest age group in Big Rock, IL was for the group of age 55 to 59 years with a population of 132 (10.81%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in Big Rock, IL was the 20 to 24 years with a population of 28 (2.29%).
Big Rock, IL population by age cohort
To better understand the age distribution of Big Rock, 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
Big Rock, IL population by age cohort
The largest age group was 18 to 64 years with a population of 681 (55.77% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Big Rock 's population under 18 was 24.98%, compared to the 22.11% nationwide.
- Big Rock's working population (between 18 and 64) was 55.77%, compared to 61.36% nationwide.
- Big Rock's elderly or the senior population (over 65 age) was 19.25% as compared to 16.53% nationwide.
Big Rock, IL population pyramid
Population pyramid for Big Rock, 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 Big Rock's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Big Rock, IL, is 38.3.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Big Rock, IL, is 33.0.
- Total dependency ratio for Big Rock, IL is 71.2.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Big Rock, IL is 3.0.
FIGURE 3
Big Rock, IL population pyramid
Big Rock population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Big Rock, IL population pyramid
Here's the Big Rock, IL's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 61 | 29 | 90 |
| 5 to 9 years | 36 | 50 | 86 |
| 10 to 14 years | 48 | 49 | 97 |
| 15 to 19 years | 37 | 31 | 68 |
| 20 to 24 years | 9 | 19 | 28 |
| 25 to 29 years | 28 | 10 | 38 |
| 30 to 34 years | 37 | 55 | 92 |
| 35 to 39 years | 18 | 33 | 51 |
| 40 to 44 years | 35 | 37 | 72 |
| 45 to 49 years | 46 | 32 | 78 |
| 50 to 54 years | 19 | 28 | 47 |
| 55 to 59 years | 72 | 60 | 132 |
| 60 to 64 years | 65 | 42 | 107 |
| 65 to 69 years | 30 | 27 | 57 |
| 70 to 74 years | 24 | 22 | 46 |
| 75 to 79 years | 24 | 29 | 53 |
| 80 to 84 years | 19 | 17 | 36 |
| 85 years and over | 13 | 30 | 43 |
Things to know
What is the population of Big Rock, IL under 18?
Big Rock's population under the age of 18 is 305, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 24.98% of the total resident population of Big Rock, IL.
What is the aging population in Big Rock, IL?
Big Rock's population aged 65 years and above was 235. As per the U.S. Census Bureau's American Community Survey, this population is 19.25% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates