McHenry County, IL population age distributions
A complete breakdown of McHenry 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 | 16,458 | 5.29% |
| 5 to 9 years | 18,929 | 6.08% |
| 10 to 14 years | 21,896 | 7.04% |
| 15 to 19 years | 22,006 | 7.07% |
| 20 to 24 years | 18,497 | 5.95% |
| 25 to 29 years | 17,369 | 5.58% |
| 30 to 34 years | 18,143 | 5.83% |
| 35 to 39 years | 20,141 | 6.47% |
| 40 to 44 years | 19,804 | 6.37% |
| 45 to 49 years | 20,869 | 6.71% |
| 50 to 54 years | 23,198 | 7.46% |
| 55 to 59 years | 24,924 | 8.01% |
| 60 to 64 years | 20,614 | 6.63% |
| 65 to 69 years | 17,699 | 5.69% |
| 70 to 74 years | 11,967 | 3.85% |
| 75 to 79 years | 8,938 | 2.87% |
| 80 to 84 years | 4,465 | 1.44% |
| 85 years and over | 5,216 | 1.68% |
TABLE OF CONTENTS
McHenry County, IL population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
McHenry County, IL population by age group.
The largest age group is 55 to 59 years with a population of 24,924 (8.01% of the total population).
The largest age group in McHenry County, IL was for the group of age 55 to 59 years with a population of 24,924 (8.01%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in McHenry County, IL was the 80 to 84 years with a population of 4,465 (1.44%).
McHenry County, IL population by age cohort
To better understand the age distribution of McHenry 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
McHenry County, IL population by age cohort
The largest age group was 18 to 64 years with a population of 191,451 (61.53% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- McHenry County 's population under 18 was 22.95%, compared to the 22.11% nationwide.
- McHenry County's working population (between 18 and 64) was 61.53%, compared to 61.36% nationwide.
- McHenry County's elderly or the senior population (over 65 age) was 15.52% as compared to 16.53% nationwide.
McHenry County, IL population pyramid
Population pyramid for McHenry 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 McHenry County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for McHenry County, IL, is 27.9.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for McHenry County, IL, is 23.5.
- Total dependency ratio for McHenry County, IL is 51.4.
- Potential support ratio, which is the number of youth (working age population) per elderly, for McHenry County, IL is 4.3.
FIGURE 3
McHenry County, IL population pyramid
McHenry County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
McHenry County, IL population pyramid
Here's the McHenry County, IL's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 8,317 | 8,141 | 16,458 |
| 5 to 9 years | 9,561 | 9,368 | 18,929 |
| 10 to 14 years | 11,393 | 10,503 | 21,896 |
| 15 to 19 years | 11,419 | 10,587 | 22,006 |
| 20 to 24 years | 9,526 | 8,971 | 18,497 |
| 25 to 29 years | 8,924 | 8,445 | 17,369 |
| 30 to 34 years | 9,298 | 8,845 | 18,143 |
| 35 to 39 years | 9,874 | 10,267 | 20,141 |
| 40 to 44 years | 10,393 | 9,411 | 19,804 |
| 45 to 49 years | 10,574 | 10,295 | 20,869 |
| 50 to 54 years | 11,658 | 11,540 | 23,198 |
| 55 to 59 years | 12,779 | 12,145 | 24,924 |
| 60 to 64 years | 10,092 | 10,522 | 20,614 |
| 65 to 69 years | 8,706 | 8,993 | 17,699 |
| 70 to 74 years | 5,698 | 6,269 | 11,967 |
| 75 to 79 years | 4,243 | 4,695 | 8,938 |
| 80 to 84 years | 1,711 | 2,754 | 4,465 |
| 85 years and over | 1,767 | 3,449 | 5,216 |
Things to know
What is the population of McHenry County, IL under 18?
McHenry County's population under the age of 18 is 71,397, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 22.95% of the total resident population of McHenry County, IL.
What is the aging population in McHenry County, IL?
McHenry County's population aged 65 years and above was 48,285. As per the U.S. Census Bureau's American Community Survey, this population is 15.52% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates