Grafton Flag

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.

849
Total Population
229
Density (mi²)
42 5.2%
Growth

Grafton Population

Grafton Population

Data after 2023 is projected based on recent change

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)
White63587.83%
Two or more races8712.03%
Native American10.14%

Grafton Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)