Williamsfield

County:: Knox County
County Seat:: No
Area (mi²):: 1.231
State:: Illinois

Williamsfield is a village located in Knox County, Illinois. Williamsfield has a 2025 population of 540. Williamsfield is currently declining at a rate of -1.1% annually and its population has decreased by -5.1% since the most recent census, which recorded a population of 569 in 2020.

The average household income in Williamsfield is $99,304 with a poverty rate of 6.2%. The median age in Williamsfield is 36.6 years: 36.1 years for males, and 38.8 years for females.

Demographics

The racial composition of Williamsfield includes 85.2% White, 13.8% Black or African American, and smaller percentages for Two or more races, Asian, Native American, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Asian

Native American

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	426	85.2%
Black or African American	69	13.8%
Two or more races	4	0.8%
Asian	1	0.2%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Williamsfield Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Williamsfield's average per capita income is $49,205. Household income levels show a median of $75,208. The poverty rate stands at 6.2%.

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	$96,563	-
Families	$88,750	$122,924
Households	$75,208	$99,304
Non Families	$48,750	$50,244

$49,205

Average Income

$75,208

Median Household Income

6.2%

Poverty Rate