Tonti township Flag

Tonti township

County:
Marion County
County Seat:
No
Area (mi²):
35.479
State:
Illinois

Tonti township is located in Marion County, Illinois. Tonti township has a 2026 population of 975. Tonti township is currently declining at a rate of -0.51% annually and its population has decreased by -4.13% since the most recent census, which recorded a population of 1,017 in 2020.

The median household income in Tonti township is $70,130 with a poverty rate of 14.09%. The median age in Tonti township is 50.2 years: 46.3 years for males, and 56.1 years for females. For every 100 females there are 94.7 males.

975
Total Population
27
Density (mi²)
-5 -0.51%
Growth

Tonti township Population

Tonti township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026975-5-0.51%
2025980-5-0.51%
2024985-5-0.51%
2023990-7-0.7%
2022997-11-1.09%
20211,008-9-0.88%
20201,017-2-0.2%
2019959-6-0.62%
2018965-7-0.72%
2017972-7-0.72%
2016979-9-0.91%
2015988-5-0.5%
2014993-2-0.2%
2013995-9-0.9%
20121,004-4-0.4%
20111,008-5-0.49%
20101,014-1-0.1%

Median Age

Overall: 50.2 years
Female: 56.1 years
Male: 46.3 years

Tonti township Adults

There are 1,127 adults, (366 of whom are seniors) in Tonti township.

Sex Ratio

Female: 678 (51.4%)
Male: 642 (48.6%)

Demographics

The racial composition of Tonti township includes 87.05% White, 10.45% other race, and smaller percentages for Two or more races and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White1,14987.05%
Other race13810.45%
Two or more races332.5%
Race
Population ↓
Percentage (of total)
White1,14987.05%
Other race13810.45%
Two or more races332.5%

Tonti township Marital Status

Economics and Income Statistics

Tonti township 's average per capita income is $45,710. Household income levels show a median of $70,130. The poverty rate stands at 14.09%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$81,492-
Families$81,371$96,317
Households$70,130$78,589
Non Families$59,792$46,930

$45,710

Average Income

$70,130

Median Household Income

14.09%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)