Rock Falls, IL Population by Age

The median age in Rock Falls, IL is 38.2, as per 2018-2022 ACS 5 -Year Estimates. Of the total population, 18.98% were under the age of 15, 20.25% aged 15 to 29, 42.52% aged 30 to 64, 15.76% aged 65 to 84, and 2.50% were 85 years of age and older.
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Updated Jul 26, 2024

Rock Falls, IL population age distributions

A complete breakdown of Rock Falls'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 626 7.03%
5 to 9 years 413 4.64%
10 to 14 years 651 7.31%
15 to 19 years 510 5.73%
20 to 24 years 723 8.12%
25 to 29 years 570 6.4%
30 to 34 years 521 5.85%
35 to 39 years 591 6.64%
40 to 44 years 359 4.03%
45 to 49 years 448 5.03%
50 to 54 years 659 7.4%
55 to 59 years 415 4.66%
60 to 64 years 793 8.91%
65 to 69 years 639 7.18%
70 to 74 years 314 3.53%
75 to 79 years 217 2.44%
80 to 84 years 232 2.61%
85 years and over 223 2.5%
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Rock Falls, IL population by age group

Key stats
2,923
Population under 25 years
2,041
Population aged 25-44
2,315
Population aged 45-64
1,625
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022

FIGURE 1

Rock Falls, IL population by age group.

The largest age group is 60 to 64 years with a population of 793 (8.91% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

The largest age group in Rock Falls, IL was for the group of age 60 to 64 years with a population of 793 (8.91%), according to the 2018-2022 American Community Survey.

At the same time, the smallest age group in Rock Falls, IL was the 75 to 79 years with a population of 217 (2.44%).

Rock Falls, IL population by age cohort

To better understand the age distribution of Rock Falls, 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

Rock Falls, IL population by age cohort

The largest age group was 18 to 64 years with a population of 5,199 (58.39% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Rock Falls, IL population by age cohort

Here's the population for each of the three cohorts.

Age Group Population % of Total Population
Under 18 years 2,080 23.36%
18 to 64 years 5,199 58.39%
65 years and over 1,625 18.25%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Rock Falls 's population under 18 was 23.36%, compared to the 22.11% nationwide.
  • Rock Falls's working population (between 18 and 64) was 58.39%, compared to 61.36% nationwide.
  • Rock Falls's elderly or the senior population (over 65 age) was 18.25% as compared to 16.53% nationwide.

Rock Falls, IL population pyramid

Population pyramid for Rock Falls, 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 Rock Falls's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Rock Falls, IL, is 30.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Rock Falls, IL, is 29.1.
  • Total dependency ratio for Rock Falls, IL is 59.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Rock Falls, IL is 3.4.

FIGURE 3

Rock Falls, IL population pyramid

Rock Falls population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Rock Falls, IL population pyramid

Here's the Rock Falls, IL's male and female population across different age groups .

Age Group Population(Male) Population(Female) Total Population
Under 5 years 350 276 626
5 to 9 years 172 241 413
10 to 14 years 325 326 651
15 to 19 years 272 238 510
20 to 24 years 267 456 723
25 to 29 years 313 257 570
30 to 34 years 261 260 521
35 to 39 years 305 286 591
40 to 44 years 175 184 359
45 to 49 years 180 268 448
50 to 54 years 382 277 659
55 to 59 years 143 272 415
60 to 64 years 422 371 793
65 to 69 years 320 319 639
70 to 74 years 124 190 314
75 to 79 years 113 104 217
80 to 84 years 45 187 232
85 years and over 104 119 223
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Things to know

What is the population of Rock Falls, IL under 18?

Rock Falls's population under the age of 18 is 2,080, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 23.36% of the total resident population of Rock Falls, IL.

What is the aging population in Rock Falls, IL?

Rock Falls's population aged 65 years and above was 1,625. As per the U.S. Census Bureau's American Community Survey, this population is 18.25% of the entire population.

References

Datasets

Explore datasets by year of publication.
2024
Rock Falls, IL Age Group Population Dataset: A Complete Breakdown of Rock Falls Age Demographics from 0 to 85 Years and Over, Distributed Across 18 Age Groups // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the Rock Falls population distribution across 18 age groups. It lists the population in each age group along with the percentage population relative of the total population for Rock Falls. The dataset can be utilized to understand the population distribution of Rock Falls by age. For example, using this dataset, we can identify the largest age group in Rock Falls.

Key observations

The largest age group in Rock Falls, IL was for the group of age 60 to 64 years years with a population of 793 (8.91%), according to the ACS 2018-2022 5-Year Estimates. At the same time, the smallest age group in Rock Falls, IL was the 75 to 79 years years with a population of 217 (2.44%). Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates

Age groups:

  • Under 5 years
  • 5 to 9 years
  • 10 to 14 years
  • 15 to 19 years
  • 20 to 24 years
  • 25 to 29 years
  • 30 to 34 years
  • 35 to 39 years
  • 40 to 44 years
  • 45 to 49 years
  • 50 to 54 years
  • 55 to 59 years
  • 60 to 64 years
  • 65 to 69 years
  • 70 to 74 years
  • 75 to 79 years
  • 80 to 84 years
  • 85 years and over

Variables / Data Columns

  • Age Group: This column displays the age group in consideration
  • Population: The population for the specific age group in the Rock Falls is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Rock Falls total population. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Rock Falls Population by Age. You can refer the same here

Rock Falls, IL Age Cohorts Dataset: Children, Working Adults, and Seniors in Rock Falls - Population and Percentage Analysis // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the Rock Falls population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). It lists the population in each age cohort group along with its percentage relative to the total population of Rock Falls. The dataset can be utilized to understand the population distribution across children, working population and senior population for dependency ratio, housing requirements, ageing, migration patterns etc.

Key observations

The largest age group was 18 to 64 years with a poulation of 5,199 (58.39% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Age cohorts:

  • Under 18 years
  • 18 to 64 years
  • 65 years and over

Variables / Data Columns

  • Age Group: This column displays the age cohort for the Rock Falls population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Rock Falls is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Rock Falls is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Rock Falls Population by Age. You can refer the same here

Rock Falls, IL Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Rock Falls, IL population pyramid, which represents the Rock Falls population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

Key observations

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Rock Falls, IL, is 30.2.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Rock Falls, IL, is 29.1.
  • Total dependency ratio for Rock Falls, IL is 59.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Rock Falls, IL is 3.4.
Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Age groups:

  • Under 5 years
  • 5 to 9 years
  • 10 to 14 years
  • 15 to 19 years
  • 20 to 24 years
  • 25 to 29 years
  • 30 to 34 years
  • 35 to 39 years
  • 40 to 44 years
  • 45 to 49 years
  • 50 to 54 years
  • 55 to 59 years
  • 60 to 64 years
  • 65 to 69 years
  • 70 to 74 years
  • 75 to 79 years
  • 80 to 84 years
  • 85 years and over

Variables / Data Columns

  • Age Group: This column displays the age group for the Rock Falls population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Rock Falls for the selected age group is shown in the following column.
  • Population (Female): The female population in the Rock Falls for the selected age group is shown in the following column.
  • Total Population: The total population of the Rock Falls for the selected age group is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for Rock Falls Population by Age. You can refer the same here

If you're looking for datasets from another year, please feel free to contact us at research@neilsberg.com and we'll be happy to assist you further.

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Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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