Grand Prairie township

County:: Jefferson County
County Seat:: No
Area (mi²):: 36.209
State:: Illinois

Grand Prairie township is located in Jefferson County, Illinois. Grand Prairie township has a 2025 population of 885. Grand Prairie township is currently declining at a rate of -0.23% annually and its population has decreased by -2.21% since the most recent census, which recorded a population of 905 in 2020.

The average household income in Grand Prairie township is $95,790 with a poverty rate of 15.62%. The median age in Grand Prairie township is 46.3 years: 46.2 years for males, and 46.3 years for females.

Demographics

The racial composition of Grand Prairie township includes 89.32% White, 3.14% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	853	89.32%
Two or more races	38	3.98%
Black or African American	30	3.14%
Asian	17	1.78%
Other race	17	1.78%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Grand Prairie township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Grand Prairie township's average per capita income is $54,038. Household income levels show a median of $87,550. The poverty rate stands at 15.62%.

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	$111,250	-
Families	$89,219	$101,561
Households	$87,550	$95,790
Non Families	$46,563	$52,434

$54,038

Average Income

$87,550

Median Household Income

15.62%

Poverty Rate