Shelbyville township is located in Shelby County, Illinois. Shelbyville township has a 2026 population of 4,335. Shelbyville township is currently declining at a rate of -0.53% annually and its population has decreased by -3.3% since the most recent census, which recorded a population of 4,483 in 2020.
The median household income in Shelbyville township is $54,423 with a poverty rate of 11.72%. The median age in Shelbyville township is 39 years: 38.8 years for males, and 40.3 years for females. For every 100 females there are 80.5 males.
Data after 2023 is projected based on recent change
Overall: 39 years
Female: 40.3 years
Male: 38.8 years
There are 3,350 adults, (903 of whom are seniors) in Shelbyville township.
Female: 2,458 (55.4%)
Male: 1,978 (44.6%)
The racial composition of Shelbyville township includes 97.61% White, and smaller percentages for Two or more races, Black or African American, Native American, other race and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,330 | 97.61% |
| Two or more races | 76 | 1.71% |
| Black or African American | 26 | 0.59% |
| Native American | 3 | 0.07% |
| Other race | 1 | 0.02% |
Shelbyville township 's average per capita income is $39,375. Household income levels show a median of $54,423. The poverty rate stands at 11.72%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $99,875 | - |
| Families | $85,508 | $92,777 |
| Households | $54,423 | $74,855 |
| Non Families | $34,210 | $47,234 |
Average Income
Median Household Income
Poverty Rate