Marble Rock, IA population by gender
The table below shows Marble Rock's population by gender
| Gender | Population | % of Total Population |
|---|---|---|
| Female | 115 | 42.44% |
| Male | 156 | 57.56% |
TABLE OF CONTENTS
Marble Rock, IA population by gender, in percentage
The female percentage in the USA is 50.41% while the male percentage is 49.59%, compared to 42.44% females and 57.56% males in Marble Rock, IA.
The above comparison shows there are less females than males in the Marble Rock city as compared to the nation.
FIGURE 1
Marble Rock, IA population by gender.
There is a majority of male population, with 57.56% of total population being male.
Marble Rock, IA gender ratio
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
In Marble Rock, IA, there are more men than women. The Marble Rock, IA gender ratio is 135.7:100 i.e. 135.7 men to 100 women (1.357).
This ratio is higher than the national average of 98.4:100 i.e 98.4 men to 100 women (0.984).
Marble Rock, IA gender ratio by age
In Marble Rock, IA, the sex ratio for children under 18 years is 330.8 boys per 100 girls (330.8:100).Having said that, for seniors aged 80 and older, there are 66.7 males per 100 females (66.7:100).
On the national level, the sex ratio (male per 100 females) for under 18 age group is 104.9:100, and 63.4:100 for the senior population 80 years and older.
Marble Rock, IA gender ratio by age
The table below lists the male and female population in each age group along with the gender ratio for Marble Rock, IA.
| Age Group | Population (Male) | Population (Female) | Gender Ratio |
|---|---|---|---|
| Under 5 years | 3 | 0 | |
| 5 to 9 years | 3 | 5 | 0.60 |
| 10 to 14 years | 12 | 3 | 4.00 |
| 15 to 19 years | 26 | 6 | 4.33 |
| 20 to 24 years | 4 | 11 | 0.36 |
| 25 to 29 years | 1 | 5 | 0.20 |
| 30 to 34 years | 5 | 4 | 1.25 |
| 35 to 39 years | 1 | 9 | 0.11 |
| 40 to 44 years | 23 | 6 | 3.83 |
| 45 to 49 years | 10 | 8 | 1.25 |
| 50 to 54 years | 7 | 2 | 3.50 |
| 55 to 59 years | 9 | 12 | 0.75 |
| 60 to 64 years | 28 | 12 | 2.33 |
| 65 to 69 years | 5 | 13 | 0.38 |
| 70 to 74 years | 11 | 16 | 0.69 |
| 75 to 79 years | 6 | 0 | |
| 80 to 84 years | 0 | 3 | |
| 85 years and over | 2 | 0 |
Interesting observation from the above table:
- The sex ratio at birth is abnormal as there is no new born girl population under the age of 5.
- For the 60-64 years, the sex ratio is 2.333 i.e. 133.3 more men per 100 women.
- While for senior most population of 85+ age group, the sex ratio is abnormal as there is no female senior population.
Marble Rock, IA population by gender & age
For male population, the largest age group is 60-64 years with a population of 28. Whereas, for the female population, the largest age group is 70-74 years with a population of 16.
As you can note from the above numbers, the largest age group for men and women are different.
FIGURE 2
Marble Rock, IA population by gender and age.
Largest age group (population): Male # 60-64 years (28) | Female # 70-74 years (16).
Under the age of 5, there are 3 boys and 0 girls in Marble Rock, IA. There are no girls under the age of 5 and the entire baby population is boys.
Between the age group of 60-64 years, there are 28 males and 12 females in Marble Rock, IA. Thus there are 16 more males than females between the age of 60 and 64 years.
For the senior most age group of 85+ years, there are 2 males and 0 females.
Things to know
What percent of Marble Rock, IA is female?
According to the ACS survey, of the total Marble Rock, IA population of 271, 42.44% percent are females.
What percentage of Marble Rock, IA is male?
According to the ACS survey, of the total Marble Rock, IA population of 271, 57.56% percent are males.
What is the male to female ratio in Marble Rock, IA?
In Marble Rock, IA, the male to female ratio is 135.7:100 i.e. 135.7 men to 100 women (1.357).
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates