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, Native American, other race and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Native Hawaiian or Pacific Islander

Native American

Other 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%
Native American	0	0%
Other race	0	0%

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