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 and multiracial populations.

Population by 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%

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