Tonti township is located in Marion County, Illinois. Tonti township has a 2026 population of 985. Tonti township is currently declining at a rate of -0.51% annually and its population has decreased by -3.15% since the most recent census, which recorded a population of 1,017 in 2020.
The median household income in Tonti township is $75,200 with a poverty rate of 14.3%. The median age in Tonti township is 43.8 years: 40.5 years for males, and 50.1 years for females. For every 100 females there are 111.7 males.
Data after 2023 is projected based on recent change
The racial composition of Tonti township includes 88.15% White, 9.79% other race, and smaller percentages for Two or more races and multiracial populations.
White (88.15%)
Other race (9.79%)
Two or more races (2.06%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,153 | 88.15% |
| Other race | 128 | 9.79% |
| Two or more races | 27 | 2.06% |
Married
Widowed
Divorced
Separated
Never Married
Tonti township's average per capita income is $43,583. Household income levels show a median of $75,200. The poverty rate stands at 14.3%.
Name | Median | Mean |
|---|---|---|
| Married Families | $79,552 | - |
| Families | $79,384 | $95,847 |
| Households | $75,200 | $78,912 |
| Non Families | - | $41,076 |
Average Income
Median Household Income
Poverty Rate