Sumner County, KS Demographics

The total population of Sumner County is estimated to be 22,517 with 11,374 males (50.51%) and 11,143 females (49.49%). There are 231 less females than males in Sumner County.
The median household income in Sumner County was $59,292 in 2021, which marked an a decrease of 1,419(2.34%) from $60,711 in 2020. This income is 79.47% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Sumner County sees its highest median household income among householders in the age group of 25 to 44 years old, at $74,654. Overall, the median household income for the county of Sumner County stands at $59,292.
In Sumner County, the median income for all workers aged 15 years and older, regardless of work hours, was $41,966 for males and $26,891 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $58,658 for males and $45,366 for females.
In Sumner County, the demographic landscape is diverse, spanning 4 distinct racial categories among households. Among these, Asian households have the highest median household income at $230,421, while Some Other Race households represent the opposite end with the lowest median household income of $36,819.
In 2022, the population of Sumner County was 22,473, a 0.39% increase year-by-year from 2021. Previously, in 2021, Sumner County's population was 22,386, an increase of 0.20% compared to a population of 22,342 in 2020.
The median age in Sumner County, KS is 42.1, as per 2021 ACS 5-Year Estimates. Of the total population, 19.84% were under the age of 15, 17.85% aged 15 to 29, 43.54% aged 30 to 64, 15.81% aged 65 to 84, and 2.97% were 85 years of age and older.
Racial distribution of Sumner County population: 91.99% are White, 0.82% are Black or African American, 2.13% are American Indian and Alaska Native, 0.60% are Asian, 0.94% are some other race and 3.52% are multiracial.