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 and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	635	87.83%
Two or more races	87	12.03%
Native American	1	0.14%

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