Aux Sable township

County:: Grundy County
County Seat:: No
Area (mi²):: 29.089
State:: Illinois

Aux Sable township is located in Grundy County, Illinois. Aux Sable township has a 2025 population of 16,105. Aux Sable township is currently growing at a rate of 0.95% annually and its population has increased by 4.76% since the most recent census, which recorded a population of 15,373 in 2020.

The average household income in Aux Sable township is $136,344 with a poverty rate of 3.51%. The median age in Aux Sable township is 32.3 years: 31.7 years for males, and 33 years for females.

Demographics

The racial composition of Aux Sable township includes 81.55% White, 4.76% other race, 4.43% Black or African American, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	12,646	81.55%
Two or more races	1,362	8.78%
Other race	738	4.76%
Black or African American	687	4.43%
Asian	54	0.35%
Native American	21	0.14%
Native Hawaiian or Pacific Islander	0	0%

Aux Sable township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Aux Sable township's average per capita income is $63,870. Household income levels show a median of $113,420. The poverty rate stands at 3.51%.

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	$125,488	-
Families	$117,685	$147,563
Households	$113,420	$136,344
Non Families	$93,618	$99,547

$63,870

Average Income

$113,420

Median Household Income

3.51%

Poverty Rate