Belleville is a city located in Republic County, Kansas. Belleville has a 2026 population of 1,965. It is also the county seat of Republic County. Belleville is currently declining at a rate of -0.25% annually and its population has decreased by -1.5% since the most recent census, which recorded a population of 1,995 in 2020.
The median household income in Belleville is $56,218 with a poverty rate of 8.01%. The median age in Belleville is 38.4 years: 40.4 years for males, and 36.5 years for females. For every 100 females there are 84.0 males.
Data after 2023 is projected based on recent change
Overall: 38.4 years
Female: 36.5 years
Male: 40.4 years
There are 1,476 adults, (484 of whom are seniors) in Belleville.
Female: 1,134 (54.4%)
Male: 952 (45.6%)
The racial composition of Belleville includes 90.46% White, 3.84% other race, and smaller percentages for Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 1,887 | 90.46% |
| Two or more races | 104 | 4.99% |
| Other race | 80 | 3.84% |
| Black or African American | 15 | 0.72% |
Belleville 's average per capita income is $41,917. Household income levels show a median of $56,218. The poverty rate stands at 8.01%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $72,198 | - |
| Families | $70,733 | $96,733 |
| Households | $56,218 | $73,603 |
| Non Families | $28,487 | $44,741 |
Average Income
Median Household Income
Poverty Rate