Steamboat Rock, IA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
The largest age group in Steamboat Rock, IA was for the group of age 45-49 years with a population of 40 (15.94%), according to the 2021 American Community Survey.
At the same time, the smallest age group in Steamboat Rock, IA was the 75-79 years with a population of 4 (1.59%).
Steamboat Rock, IA population by age cohort
To better understand the age distribution of Steamboat 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
Here's the population for each of the three cohorts.
| Age Group | Population | % of Total Population |
|---|---|---|
| Under 18 years | 43 | 17.13% |
| 18 to 64 years | 176 | 70.12% |
| 85 years and over | 32 | 12.75% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Steamboat Rock's population under 18 was 17.13%, compared to the 22.51% nationwide.
- Steamboat Rock's working population (between 18 and 64) was 70.12%, compared to 61.45% nationwide.
- Steamboat Rock's elderly or the senior population (over 65 age) was 12.75% as compared to 16.04% nationwide.
Steamboat Rock, IA population pyramid
Population pyramid for Steamboat 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 Steamboat Rock's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Steamboat Rock, IA, is 19.7.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Steamboat Rock, IA, is 17.5.
- Total dependency ratio for Steamboat Rock, IA is 37.2.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Steamboat Rock, IA is 5.7.
Here's the Steamboat Rock, IA's male and female population across different age groups:
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 0 | 8 | 8 |
| 5 to 9 years | 2 | 10 | 12 |
| 10 to 14 years | 3 | 13 | 16 |
| 15 to 19 years | 4 | 3 | 7 |
| 20 to 24 years | 8 | 3 | 11 |
| 25 to 29 years | 6 | 4 | 10 |
| 30 to 34 years | 8 | 3 | 11 |
| 35 to 39 years | 10 | 8 | 18 |
| 40 to 44 years | 1 | 8 | 9 |
| 45 to 49 years | 25 | 15 | 40 |
| 50 to 54 years | 15 | 2 | 17 |
| 55 to 59 years | 9 | 11 | 20 |
| 60 to 64 years | 30 | 10 | 40 |
| 65 to 69 years | 5 | 3 | 8 |
| 70 to 74 years | 1 | 6 | 7 |
| 75 to 79 years | 2 | 2 | 4 |
| 80 to 84 years | 0 | 8 | 8 |
| 85 years and over | 0 | 5 | 5 |