Wilmington is located in Wabaunsee County, Kansas. Wilmington has a 2025 population of 596 . Wilmington is currently declining at a rate of 0% annually and its population has increased by 1.02% since the most recent census, which recorded a population of 590 in 2020.
The average household income in Wilmington is $55,870 with a poverty rate of 25.07%. The median age in Wilmington is 52.8 years: 53.8 years for males, and 51.9 years for females. For every 100 females there are 116.1 males.
Data after 2023 is projected based on recent change
The racial composition of Wilmington includes 98.8% White, and smaller percentages for Black or African American, other race and multiracial populations.
White (98.8%)
Black or African American (0.72%)
Other race (0.48%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 412 | 98.8% |
| Black or African American | 3 | 0.72% |
| Other race | 2 | 0.48% |
Married
Widowed
Divorced
Separated
Never Married
Wilmington's average per capita income is $32,045. Household income levels show a median of $42,361. The poverty rate stands at 25.07%.
Name | Median | Mean |
|---|---|---|
| Married Families | $61,250 | - |
| Families | $56,071 | $63,511 |
| Households | $42,361 | $55,870 |
| Non Families | $28,250 | $42,333 |
Average Income
Median Household Income
Poverty Rate