Overview
          274
                  Total Population
                32.0
                  Median age
                61.31%
                  Female population %
                63.1:100
                  Gender ratio (M:F)
                25-29 years
                  Largest age group
                75.6
                  Total dependency ratio
                White
                  Largest racial group
                12
                  Hispanic population
                Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Castor's population is young compared to the rest of the country:
- The median age in Castor is 32.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
 - Castor's population under 18 was 27.01%, compared to the 22.51% nationwide.
 - Castor's elderly or the senior population (over 65 age) was 18.25% as compared to 16.04% nationwide.
 - Of the total population in Castor, 24.82% were under the age of 15, 22.63% aged 15 to 29, 34.31% aged 30 to 64, 13.50% aged 65 to 84, and 4.74% were 85 years of age and older.
 
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Gender
There are 62 more females than males in Castor:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 61.31% females and 38.69% males in Castor, LA.
 - The Castor, LA gender ratio is 63.1:100 i.e. 63.1 men to 100 women (0.631).
 - For male population, the largest age group is 5-9 years with a population of 28.
 - For the female population, the largest age group is 25-29 years with a population of 33.
 
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Race / Ethnicity
Castor's population has become increasingly diverse:
- Racial distribution of Castor population: 77.37% are White, 17.15% are Black or African American and 5.47% are multiracial.
 - Castor's racial breakdown clearly shows that there is an absolute majority of White population in the village.
 - By ethnicity, 12 is Hispanic or Latino (of any race), and 262 (95.62% of the total population) is Non-Hispanic.
 - The largest racial group in Castor is White with a population of 212 (77.37% of the total population).
 
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Year by year
Castor's population has already reached its peak and is showing a trend of decline:
- The peak population was 261 in the year 2010
 - From 2000 to 2010, Castor's population increased by 8 (3.16%), as compared to the national growth of 9.63%.
 - From 2010 to 2020, Castor's population decreased by 31 (11.88%), 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, Castor's population was lowest in year 2022 at 226.
 
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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)