Williams township

County:: Sangamon County
County Seat:: No
Area (mi²):: 42.782
State:: Illinois

Williams township is located in Sangamon County, Illinois. Williams township has a 2025 population of 3,392. Williams township is currently declining at a rate of -0.24% annually and its population has decreased by -1.6% since the most recent census, which recorded a population of 3,447 in 2020.

The average household income in Williams township is $154,209 with a poverty rate of 3.32%.The median age in Williams township is 41.2 years: 36.6 years for males, and 44.2 years for females.

Demographics

The racial composition of Williams township includes 94.74% White, and smaller percentages for Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	3,242	94.74%
Two or more races	136	3.97%
Black or African American	25	0.73%
Asian	13	0.38%
Native Hawaiian or Pacific Islander	6	0.18%

Williams township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Williams township's average per capita income is $62,614. Household income levels show a median of $129,531. The poverty rate stands at 3.32%.

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	$147,961	-
Families	$140,391	$176,512
Households	$129,531	$154,209
Non Families	$43,013	$73,890

$62,614

Average Income

$129,531

Median Household Income

3.32%

Poverty Rate