Marble Rock, IA population age distributions
A complete breakdown of Marble 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 | 2 | 1.01% |
| 5 to 9 years | 8 | 4.02% |
| 10 to 14 years | 13 | 6.53% |
| 15 to 19 years | 6 | 3.02% |
| 20 to 24 years | 17 | 8.54% |
| 25 to 29 years | 5 | 2.51% |
| 30 to 34 years | 10 | 5.03% |
| 35 to 39 years | 2 | 1.01% |
| 40 to 44 years | 10 | 5.03% |
| 45 to 49 years | 15 | 7.54% |
| 50 to 54 years | 11 | 5.53% |
| 55 to 59 years | 21 | 10.55% |
| 60 to 64 years | 18 | 9.05% |
| 65 to 69 years | 27 | 13.57% |
| 70 to 74 years | 19 | 9.55% |
| 75 to 79 years | 7 | 3.52% |
| 80 to 84 years | 3 | 1.51% |
| 85 years and over | 5 | 2.51% |
TABLE OF CONTENTS
Marble Rock, IA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2019-2023
FIGURE 1
Marble Rock, IA population by age group.
The largest age group is 65 to 69 years with a population of 27 (13.57% of the total population).
The largest age group in Marble Rock, IA was for the group of age 65 to 69 years with a population of 27 (13.57%), according to the 2019-2023 American Community Survey.
At the same time, the smallest age group in Marble Rock, IA was the Under 5 years with a population of 2 (1.01%).
Marble Rock, IA population by age cohort
To better understand the age distribution of Marble Rock, IA'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
Marble Rock, IA population by age cohort
The largest age group was 18 to 64 years with a population of 111 (55.78% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Marble Rock 's population under 18 was 13.57%, compared to the 22.16% nationwide.
- Marble Rock's working population (between 18 and 64) was 55.78%, compared to 61% nationwide.
- Marble Rock's elderly or the senior population (over 65 age) was 30.65% as compared to 16.84% nationwide.
Marble Rock, IA population pyramid
Population pyramid for Marble Rock, IA 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 Marble Rock's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Marble Rock, IA, is 20.0.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Marble Rock, IA, is 53.0.
- Total dependency ratio for Marble Rock, IA is 73.0.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Marble Rock, IA is 1.9.
FIGURE 3
Marble Rock, IA population pyramid
Marble Rock population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Marble Rock, IA population pyramid
Here's the Marble Rock, IA's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 2 | 0 | 2 |
| 5 to 9 years | 3 | 5 | 8 |
| 10 to 14 years | 11 | 2 | 13 |
| 15 to 19 years | 1 | 5 | 6 |
| 20 to 24 years | 7 | 10 | 17 |
| 25 to 29 years | 1 | 4 | 5 |
| 30 to 34 years | 6 | 4 | 10 |
| 35 to 39 years | 1 | 1 | 2 |
| 40 to 44 years | 7 | 3 | 10 |
| 45 to 49 years | 3 | 12 | 15 |
| 50 to 54 years | 9 | 2 | 11 |
| 55 to 59 years | 10 | 11 | 21 |
| 60 to 64 years | 10 | 8 | 18 |
| 65 to 69 years | 9 | 18 | 27 |
| 70 to 74 years | 12 | 7 | 19 |
| 75 to 79 years | 5 | 2 | 7 |
| 80 to 84 years | 0 | 3 | 3 |
| 85 years and over | 3 | 2 | 5 |
Things to know
What is the population of Marble Rock, IA under 18?
Marble Rock's population under the age of 18 is 27, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 13.57% of the total resident population of Marble Rock, IA.
What is the aging population in Marble Rock, IA?
Marble Rock's population aged 65 years and above was 61. As per the U.S. Census Bureau's American Community Survey, this population is 30.65% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates