Sterling township Flag

Sterling township

County Seat:
No
Area (mi²):
23.37
State:
Illinois

Sterling township is located in Whiteside County, Illinois. Sterling township has a 2026 population of 16,716. Sterling township is currently declining at a rate of -0.63% annually and its population has decreased by -3.47% since the most recent census, which recorded a population of 17,317 in 2020.

The median household income in Sterling township is $61,764 with a poverty rate of 13.63%. The median age in Sterling township is 42.6 years: 40.4 years for males, and 44.7 years for females. For every 100 females there are 98.3 males.

16.7K
Total Population
715
Density (mi²)
-106 -0.63%
Growth

Sterling township Population

Sterling township Population

Year ↓
Population
Growth
Annual Change
202616,716-106-0.63%
202516,822-106-0.63%
202416,928-23-0.14%
202316,951-33-0.19%
202216,984-243-1.41%
202117,227-90-0.52%
202017,317-43-0.25%
201916,961-109-0.64%
201817,070-175-1.01%
201717,245-158-0.91%
201617,403-138-0.79%
201517,541-35-0.2%
201417,576-109-0.62%
201317,685-107-0.6%
201217,792-157-0.87%
201117,949-86-0.48%
201018,030-11-0.06%

Median Age

Overall: 42.6 years
Female: 44.7 years
Male: 40.4 years

Sterling township Adults

There are 13,554 adults, (3,699 of whom are seniors) in Sterling township.

Sex Ratio

Female: 8,617 (50.4%)
Male: 8,472 (49.6%)

Demographics

The racial composition of Sterling township includes 75.14% White, 6.09% other race, and smaller percentages for Black or African American, Asian, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White12,84075.14%
Two or more races2,49514.6%
Other race1,0416.09%
Black or African American4452.6%
Asian1871.09%
Native American810.47%
Race
Population ↓
Percentage (of total)
Two or more races1,6809.83%
White1,4818.67%
Other race9405.5%
Native American790.46%
Black or African American230.13%
Asian160.09%
Race
Population ↓
Percentage (of total)
White11,35966.47%
Two or more races8154.77%
Black or African American4222.47%
Asian1711%
Other race1010.59%
Native American20.01%

Sterling township Marital Status

Economics and Income Statistics

Sterling township's average per capita income is $45,089. Household income levels show a median of $61,764. The poverty rate stands at 13.63%.

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$106,146-
Families$80,969$104,485
Households$61,764$85,994
Non Families$36,111$52,805

$45,089

Average Income

$61,764

Median Household Income

13.63%

Poverty Rate

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)