Sumner is located in Reno County, Kansas. Sumner has a 2025 population of 680. Sumner is currently growing at a rate of 0.29% annually and its population has increased by 0.59% since the most recent census, which recorded a population of 676 in 2020.
The average household income in Sumner is $102,584 with a poverty rate of 4.36%.The median age in Sumner is 43.3 years: 44.7 years for males, and 40.7 years for females.
Data after 2023 is projected based on recent change
The racial composition of Sumner includes 95.46% White, and smaller percentages for and multiracial populations.
White (95.5%)
Two or more races (4.5%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 526 | 95.46% |
| Two or more races | 25 | 4.54% |
Married
Widowed
Divorced
Separated
Never Married
Sumner's average per capita income is $52,847. Household income levels show a median of $101,458. The poverty rate stands at 4.36%.
Name | Median | Mean |
|---|---|---|
| Non Families | $105,893 | $86,575 |
| Households | $101,458 | $102,584 |
| Families | $99,250 | $106,272 |
| Married Families | $99,250 | - |
Average Income
Median Household Income
Poverty Rate