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 and multiracial populations.

Population by Race

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%

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