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 2026 population of 835. Grafton is currently growing at a rate of 3.99% annually and its population has increased by 29.26% since the most recent census, which recorded a population of 646 in 2020.

The median household income in Grafton is $105,417 with a poverty rate of 4.77%. The median age in Grafton is 52.2 years: 46.3 years for males, and 53.4 years for females. For every 100 females there are 109.1 males.

835
Total Population
225
Density (mi²)
32 3.99%
Growth

Grafton Population

Grafton Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026835323.99%
2025803314.02%
2024772-2-0.26%
2023774364.88%
2022738497.11%
2021689436.66%
2020646142.22%
2019634-3-0.47%
2018637-6-0.93%
2017643-4-0.62%
2016647-9-1.37%
2015656-8-1.2%
201466400%
2013664-5-0.75%
2012669-5-0.74%
201167400%
201068010.15%

Median Age

Overall: 52.2 years
Female: 53.4 years
Male: 46.3 years

Grafton Adults

There are 571 adults, (206 of whom are seniors) in Grafton.

Sex Ratio

Female: 351 (47.8%)
Male: 383 (52.2%)

Demographics

The racial composition of Grafton includes 88.28% White, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White64888.28%
Two or more races8511.58%
Native American10.14%
Race
Population ↓
Percentage (of total)
Two or more races81.09%
White20.27%
Race
Population ↓
Percentage (of total)
White64688.01%
Two or more races7710.49%
Native American10.14%

Grafton Marital Status

Economics and Income Statistics

Grafton 's average per capita income is $66,667. Household income levels show a median of $105,417. The poverty rate stands at 4.77%.

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$140,833-
Families$136,875$137,035
Households$105,417$115,555
Non Families$37,500$66,757

$66,667

Average Income

$105,417

Median Household Income

4.77%

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)