Overview
          94
                  Total Population
                33.3
                  Median age
                34.04%
                  Female population %
                193.8:100
                  Gender ratio (M:F)
                25-29 years
                  Largest age group
                77.4
                  Total dependency ratio
                White
                  Largest racial group
                Zero
                  Hispanic population
                Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Oyens's population is young compared to the rest of the country:
- The median age in Oyens is 33.3, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
 - Oyens's population under 18 was 23.40%, compared to the 22.51% nationwide.
 - Oyens's elderly or the senior population (over 65 age) was 20.21% as compared to 16.04% nationwide.
 - Of the total population in Oyens, 23.40% were under the age of 15, 21.28% aged 15 to 29, 35.11% aged 30 to 64, 20.21% aged 65 to 84, and 0.00% were 85 years of age and older.
 
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Gender
There are 30 less females than males in Oyens:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 34.04% females and 65.96% males in Oyens, IA.
 - The Oyens, IA gender ratio is 193.8:100 i.e. 193.8 men to 100 women (1.938).
 - For male population, the largest age group is 0-4 years with a population of 16.
 - For the female population, the largest age group is 25-29 years with a population of 14.
 
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Race / Ethnicity
Oyens's population is non diverse:
- Racial distribution of Oyens population: 100% are White.
 - Oyens's racial breakdown clearly shows that there is an absolute majority of White population in the city.
 - By ethnicity, Zero is Hispanic or Latino (of any race), and 94 (100% of the total population) is Non-Hispanic.
 - The largest racial group in Oyens is White with a population of 94 (100% of the total population).
 
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Year by year
Oyens's population has already reached its peak and is showing a trend of decline:
- The peak population was 129 in the year 2000
 - From 2000 to 2010, Oyens's population decreased by 28 (21.71%), as compared to the national growth of 9.63%.
 - From 2010 to 2020, Oyens's population decreased by 9 (8.91%), 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, Oyens's population was lowest in year 2022 at 91.
 
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References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
 - U.S. Census Bureau Population Estimates Population Estimates Program (PEP)