Overview
159
Total Population
51.6
Median age
37.11%
Female population %
169.5:100
Gender ratio (M:F)
75-79 years
Largest age group
89.3
Total dependency ratio
White
Largest racial group
Zero
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Castle's population is old compared to the rest of the country:
- The median age in Castle is 51.6, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Castle's population under 18 was 11.95%, compared to the 22.51% nationwide.
- Castle's elderly or the senior population (over 65 age) was 36.48% as compared to 16.04% nationwide.
- Of the total population in Castle, 10.69% were under the age of 15, 23.27% aged 15 to 29, 29.56% aged 30 to 64, 35.85% aged 65 to 84, and 0.63% were 85 years of age and older.

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Gender
There are 41 less females than males in Castle:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 37.11% females and 62.89% males in Castle, OK.
- The Castle, OK gender ratio is 169.5:100 i.e. 169.5 men to 100 women (1.695).
- For male population, the largest age group is 75-79 years with a population of 34.
- For the female population, the largest age group is 15-19 years with a population of 14.

Read more about Castle, OK population by gender ➔
Race / Ethnicity
Castle's population is moderately diverse:
- Racial distribution of Castle population: 69.18% are White, 16.35% are American Indian and Alaska Native and 14.47% are multiracial.
- Castle's racial breakdown clearly shows that there is an absolute majority of White population in the town.
- By ethnicity, Zero is Hispanic or Latino (of any race), and 159 (100% of the total population) is Non-Hispanic.
- The largest racial group in Castle is White with a population of 11 (69.18% of the total population).

Read more about Castle, OK population by race ➔
Year by year
Castle's population has already reached its peak and is showing a trend of decline:
- The peak population was 170 in the year 2020
- From 2000 to 2010, Castle's population decreased by 18 (14.52%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Castle's population increased by 64 (60.38%), 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, Castle's population was lowest in year 2016 at 104.

Read more about Castle, OK 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)