Rock Valley, IA population age distribution
A complete breakdown of Rock Valley'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 | 143 | 3.56% |
5 to 9 years | 333 | 8.29% |
10 to 14 years | 402 | 10% |
15 to 19 years | 325 | 8.09% |
20 to 24 years | 368 | 9.16% |
25 to 29 years | 75 | 1.87% |
30 to 34 years | 179 | 4.45% |
35 to 39 years | 113 | 2.81% |
40 to 44 years | 494 | 12.29% |
45 to 49 years | 187 | 4.65% |
50 to 54 years | 312 | 7.77% |
55 to 59 years | 138 | 3.43% |
60 to 64 years | 199 | 4.95% |
65 to 69 years | 180 | 4.48% |
70 to 74 years | 157 | 3.91% |
75 to 79 years | 191 | 4.75% |
80 to 84 years | 72 | 1.79% |
85 years and over | 150 | 3.73% |
TABLE OF CONTENTS
Rock Valley, IA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
The largest age group in Rock Valley, IA was for the group of age 40-44 years with a population of 494 (12.29%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Rock Valley, IA was the 80-84 years with a population of 72 (1.79%).
Rock Valley, IA population by age cohort
To better understand the age distribution of Rock Valley, 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
Here's the population for each of the three cohorts.
Age Group | Population | % of Total Population |
---|---|---|
Under 18 years | 1,082 | 26.93% |
18 to 64 years | 2,186 | 54.41% |
85 years and over | 750 | 18.67% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Rock Valley's population under 18 was 26.93%, compared to the 22.51% nationwide.
- Rock Valley's working population (between 18 and 64) was 54.41%, compared to 61.45% nationwide.
- Rock Valley's elderly or the senior population (over 65 age) was 18.67% as compared to 16.04% nationwide.
Rock Valley, IA population pyramid
Population pyramid for Rock Valley, 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 Rock Valley's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Rock Valley, IA, is 36.7.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Rock Valley, IA, is 31.4.
- Total dependency ratio for Rock Valley, IA is 68.1.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Rock Valley, IA is 3.2.
Here's the Rock Valley, IA's male and female population across different age groups:
Age Group | Population(Male) | Population(Female) | Total Population |
---|---|---|---|
Under 5 years | 26 | 117 | 143 |
5 to 9 years | 227 | 106 | 333 |
10 to 14 years | 175 | 227 | 402 |
15 to 19 years | 136 | 189 | 325 |
20 to 24 years | 182 | 186 | 368 |
25 to 29 years | 50 | 25 | 75 |
30 to 34 years | 82 | 97 | 179 |
35 to 39 years | 79 | 34 | 113 |
40 to 44 years | 264 | 230 | 494 |
45 to 49 years | 52 | 135 | 187 |
50 to 54 years | 197 | 115 | 312 |
55 to 59 years | 28 | 110 | 138 |
60 to 64 years | 114 | 85 | 199 |
65 to 69 years | 41 | 139 | 180 |
70 to 74 years | 106 | 51 | 157 |
75 to 79 years | 117 | 74 | 191 |
80 to 84 years | 11 | 61 | 72 |
85 years and over | 15 | 135 | 150 |
Things to know
What is the population of Rock Valley, IA under 18?
Rock Valley's population under the age of 18 is 1,082, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 26.93% of the total resident population of Rock Valley, IA.
What is the aging population in Rock Valley, IA?
Rock Valley's population aged 65 years and above was 750. As per the U.S. Census Bureau's American Community Survey, this population is 18.67% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates