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 and multiracial populations.

Population by Race

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%

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