Jefferson County, IA population by gender
The table below shows Jefferson County's population by gender
| Gender | Population | % of Total Population |
|---|---|---|
| Male | 8,293 | 52.54% |
| Female | 7,492 | 47.46% |
TABLE OF CONTENTS
Jefferson County, IA population by gender, in percentage
The female percentage in the USA is 50.41% while the male percentage is 49.59%, compared to 47.46% females and 52.54% males in Jefferson County, IA.
The above comparison shows there are less females than males in the Jefferson County county as compared to the nation.
FIGURE 1
Jefferson County, IA population by gender.
There is a slight majority of male population, with 52.54% of total population being male.
Jefferson County, IA gender ratio
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
In Jefferson County, IA, there are more men than women. The Jefferson County, IA gender ratio is 110.7:100 i.e. 110.7 men to 100 women (1.107).
This ratio is higher than the national average of 98.4:100 i.e 98.4 men to 100 women (0.984).
Jefferson County, IA gender ratio by age
In Jefferson County, IA, the sex ratio for children under 18 years is 99.9 boys per 100 girls (99.9:100).Having said that, for seniors aged 80 and older, there are 63.6 males per 100 females (63.6:100).
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.
Jefferson County, IA gender ratio by age
The table below lists the male and female population in each age group along with the gender ratio for Jefferson County, IA.
| Age Group | Population (Male) | Population (Female) | Gender Ratio |
|---|---|---|---|
| Under 5 years | 381 | 350 | 1.09 |
| 5 to 9 years | 272 | 410 | 0.66 |
| 10 to 14 years | 411 | 308 | 1.33 |
| 15 to 19 years | 320 | 419 | 0.76 |
| 20 to 24 years | 560 | 331 | 1.69 |
| 25 to 29 years | 672 | 387 | 1.74 |
| 30 to 34 years | 645 | 559 | 1.15 |
| 35 to 39 years | 520 | 413 | 1.26 |
| 40 to 44 years | 573 | 427 | 1.34 |
| 45 to 49 years | 508 | 332 | 1.53 |
| 50 to 54 years | 511 | 386 | 1.32 |
| 55 to 59 years | 424 | 564 | 0.75 |
| 60 to 64 years | 596 | 516 | 1.16 |
| 65 to 69 years | 743 | 683 | 1.09 |
| 70 to 74 years | 604 | 601 | 1.00 |
| 75 to 79 years | 233 | 303 | 0.77 |
| 80 to 84 years | 157 | 173 | 0.91 |
| 85 years and over | 163 | 330 | 0.49 |
Interesting observation from the above table:
- The sex ratio at birth is 1.089 i.e. 108.9 boys per 100 girls.
- For the 60-64 years, the sex ratio is 1.155 i.e. 15.5 more men per 100 women.
- While for senior most population of 85+ age group, the sex ratio is 0.494 i.e. 49.4 senior men per 100 senior women.
Jefferson County, IA population by gender & age
For male population, the largest age group is 65-69 years with a population of 743. Whereas, for the female population, the largest age group is 65-69 years with a population of 683.
As you can note from the above numbers, the largest age group for men and women are same. The above comparison also shows that there are 60 less females than males, in the age group 65-69 years (The largest age group for both of the genders).
FIGURE 2
Jefferson County, IA population by gender and age.
Largest age group (population): Male # 65-69 years (743) | Female # 65-69 years (683).
Under the age of 5, there are 381 boys and 350 girls in Jefferson County, IA. Thus there are 31 more boys than girls under the age of 5.
Between the age group of 60-64 years, there are 596 males and 516 females in Jefferson County, IA. Thus there are 80 more males than females between the age of 60 and 64 years.
For the senior most age group of 85+ years, there are 163 males and 330 females.
Things to know
What percent of Jefferson County, IA is female?
According to the ACS survey, of the total Jefferson County, IA population of 15,785, 47.46% percent are females.
What percentage of Jefferson County, IA is male?
According to the ACS survey, of the total Jefferson County, IA population of 15,785, 52.54% percent are males.
What is the male to female ratio in Jefferson County, IA?
In Jefferson County, IA, the male to female ratio is 110.7:100 i.e. 110.7 men to 100 women (1.107).
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates