Aux Sable township Flag

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 2026 population of 16,098. Aux Sable township is currently growing at a rate of 0.64% annually and its population has increased by 4.75% since the most recent census, which recorded a population of 15,368 in 2020.

The median household income in Aux Sable township is $109,269 with a poverty rate of 3.94%. The median age in Aux Sable township is 32 years: 31.5 years for males, and 33.1 years for females. For every 100 females there are 98.9 males.

16.1K
Total Population
553
Density (mi²)
102 0.64%
Growth

Aux Sable township Population

Aux Sable township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202616,0981020.64%
202515,9961020.64%
202415,8941020.65%
202315,7921540.98%
202215,6381050.68%
202115,5331651.07%
202015,368110.07%
201913,432600.45%
201813,372930.7%
201713,2791030.78%
201613,176-15-0.11%
201513,19150.04%
201413,186160.12%
201313,170190.14%
201213,151400.31%
201113,111500.38%
201013,106290.22%

Median Age

Overall: 32 years
Female: 33.1 years
Male: 31.5 years

Aux Sable township Adults

There are 11,267 adults, (1,351 of whom are seniors) in Aux Sable township.

Sex Ratio

Female: 7,857 (50.3%)
Male: 7,773 (49.7%)

Demographics

The racial composition of Aux Sable township includes 80.61% White, 4.52% other race, 4.24% Black or African American, and smaller percentages for Asian, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White12,60080.61%
Two or more races1,58210.12%
Other race7074.52%
Black or African American6624.24%
Asian650.42%
Native American140.09%
Race
Population ↓
Percentage (of total)
Two or more races1,3218.45%
White9556.11%
Other race6814.36%
Native American20.01%
Race
Population ↓
Percentage (of total)
White11,64574.5%
Black or African American6624.24%
Two or more races2611.67%
Asian650.42%
Other race260.17%
Native American120.08%

Aux Sable township Marital Status

Economics and Income Statistics

Aux Sable township 's average per capita income is $63,362. Household income levels show a median of $109,269. The poverty rate stands at 3.94%.

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$124,740-
Families$120,742$149,280
Households$109,269$131,238
Non Families$81,866$83,309

$63,362

Average Income

$109,269

Median Household Income

3.94%

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)