Overview
82
Total Population
40.5
Median age
43.90%
Female population %
127.8:100
Gender ratio (M:F)
20-24 years
Largest age group
49.1
Total dependency ratio
White
Largest racial group
Zero
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Marietta's population is old compared to the rest of the country:
- The median age in Marietta is 40.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Marietta's population under 18 was 17.07%, compared to the 22.51% nationwide.
- Marietta's elderly or the senior population (over 65 age) was 21.95% as compared to 16.04% nationwide.
- Of the total population in Marietta, 10.98% were under the age of 15, 24.39% aged 15 to 29, 42.68% aged 30 to 64, 20.73% aged 65 to 84, and 1.22% were 85 years of age and older.
![Marietta, IL population by age group The graph shows Marietta's population by age group, with age group on x-axis and the respective age group's percent of the total population on y-axis](https://i.neilsberg.com/ch/marietta-il-population-by-age-group.jpeg)
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Gender
There are 10 less females than males in Marietta:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 43.90% females and 56.10% males in Marietta, IL.
- The Marietta, IL gender ratio is 127.8:100 i.e. 127.8 men to 100 women (1.278).
- For male population, the largest age group is 15-19 years with a population of 5.
- For the female population, the largest age group is 20-24 years with a population of 7.
![Marietta, IL population by gender and age The grouped bar chart shows Marietta, IL population by age and gender across 18 age groups, defined between the age of 0 and 85 and above. The female population is shown in pink color bar and male population is shown in blue color bar. Age group is plotted on x axis and population on y axis.](https://i.neilsberg.com/ch/marietta-il-population-by-gender-and-age.jpeg)
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Race / Ethnicity
Marietta's population is non diverse:
- Racial distribution of Marietta population: 100% are White.
- Marietta's racial breakdown clearly shows that there is an absolute majority of White population in the village.
- By ethnicity, Zero is Hispanic or Latino (of any race), and 82 (100% of the total population) is Non-Hispanic.
- The largest racial group in Marietta is White with a population of 82 (100% of the total population).
![Marietta, IL population by race The bar chart shows Marietta, IL population by race, in percentage. The numbers shown are based on the American Community Survey respondents self identified race. The Hispanic and Latino population is spread across the races identified and not as a separate race category.](https://i.neilsberg.com/ch/marietta-il-population-by-race.jpeg)
Read more about Marietta, IL population by race ➔
Year by year
Marietta's population has already reached its peak and is showing a trend of decline:
- The peak population was 149 in the year 2000
- From 2000 to 2010, Marietta's population decreased by 36 (24.16%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Marietta's population decreased by 10 (8.85%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
- Between the year 2000 and 2022, Marietta's population was lowest in year 2022 at 101.
![Marietta, IL population from 2000 to 2022 The graph shows Marietta's population from 2000 to 2022, with years on x-axis and population on y-axis](https://i.neilsberg.com/ch/population-of-marietta-il-population-by-year-2000-2022.jpeg)
Read more about Marietta, IL population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
- U.S. Census Bureau Population Estimates Population Estimates Program (PEP)