Grafton

County:: Jersey County
County Seat:: No
Area (mi²):: 3.712
State:: Illinois

Grafton is a city located in Jersey County, Illinois. Grafton has a 2025 population of 849. Grafton is currently growing at a rate of 5.2% annually and its population has increased by 33.07% since the most recent census, which recorded a population of 638 in 2020.

The average household income in Grafton is $112,890 with a poverty rate of 7.75%. The median age in Grafton is 50.1 years: 42.7 years for males, and 53.7 years for females.

Demographics

The racial composition of Grafton includes 87.83% White, and smaller percentages for Native American, Black or African American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Two or more races

Native American

Black or African American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	635	87.83%
Two or more races	87	12.03%
Native American	1	0.14%
Black or African American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

Grafton Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Grafton's average per capita income is $69,792. Household income levels show a median of $93,250. The poverty rate stands at 7.75%.

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	$132,500	-
Families	$128,125	$133,595
Households	$93,250	$112,890
Non Families	$34,583	$61,000

$69,792

Average Income

$93,250

Median Household Income

7.75%

Poverty Rate