Overview
4,019
Total Population
34.7
Median age
51.95%
Female population %
92.5:100
Gender ratio (M:F)
10-14 years
Largest age group
68.8
Total dependency ratio
White
Largest racial group
1,285
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Kearny County's population is young compared to the rest of the country:
- The median age in Kearny County is 34.7, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Kearny County's population under 18 was 29.66%, compared to the 22.51% nationwide.
- Kearny County's elderly or the senior population (over 65 age) was 15.05% as compared to 16.04% nationwide.
- Of the total population in Kearny County, 25.70% were under the age of 15, 18.76% aged 15 to 29, 40.48% aged 30 to 64, 12.99% aged 65 to 84, and 2.07% were 85 years of age and older.

Read more about Kearny County, KS population by age ➔
Gender
There are 157 more females than males in Kearny County:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.95% females and 48.05% males in Kearny County, KS.
- The Kearny County, KS gender ratio is 92.5:100 i.e. 92.5 men to 100 women (0.925).
- For male population, the largest age group is 10-14 years with a population of 200.
- For the female population, the largest age group is 15-19 years with a population of 228.

Read more about Kearny County, KS population by gender ➔
Race / Ethnicity
Kearny County's population has become increasingly diverse:
- Racial distribution of Kearny County population: 89.72% are White, 2.49% are Black or African American, 0.10% are American Indian and Alaska Native, 0.27% are Asian, 4.21% are some other race and 3.21% are multiracial.
- Kearny County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
- By ethnicity, 1,285 is Hispanic or Latino (of any race), and 2,734 (68.03% of the total population) is Non-Hispanic.
- The largest racial group in Kearny County is White with a population of 3,606 (89.72% of the total population).

Read more about Kearny County, KS population by race ➔
Year by year
Kearny County's population has already reached its peak and is showing a trend of decline:
- The peak population was 4,517 in the year 2001
- From 2000 to 2010, Kearny County's population decreased by 486 (10.83%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Kearny County's population decreased by 40 (1.00%), 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, Kearny County's population was lowest in year 2019 at 3,807.

Read more about Kearny County, KS 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)