Grandville township is located in Jasper County, Illinois. Grandville township has a 2026 population of 350. Grandville township is currently declining at a rate of -0.57% annually and its population has decreased by -1.69% since the most recent census, which recorded a population of 356 in 2020.
The median household income in Grandville township is $60,104 with a poverty rate of 11.99%. The median age in Grandville township is 57 years: 57.7 years for males, and 53.9 years for females. For every 100 females there are 92.1 males.
Data after 2023 is projected based on recent change
The racial composition of Grandville township includes 96.21% White, and smaller percentages for and multiracial populations.
White (96.21%)
Two or more races (3.79%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 305 | 96.21% |
| Two or more races | 12 | 3.79% |
Married
Widowed
Divorced
Separated
Never Married
Grandville township's average per capita income is $21,452. Household income levels show a median of $60,104. The poverty rate stands at 11.99%.
Name | Median | Mean |
|---|---|---|
| Married Families | $60,938 | - |
| Families | $60,833 | $73,578 |
| Households | $60,104 | $71,088 |
| Non Families | - | $25,557 |
Average Income
Median Household Income
Poverty Rate