Grafton township Flag

Grafton township

County:
Jersey County
County Seat:
No
Area (mi²):
35.688
State:
Illinois

Grafton township is located in Jersey County, Illinois. Grafton township has a 2026 population of 58,234. Grafton township is currently growing at a rate of 0.61% annually and its population has increased by 3.17% since the most recent census, which recorded a population of 56,447 in 2020.

The median household income in Grafton township is $130,767 with a poverty rate of 4.39%. The median age in Grafton township is 39.7 years: 39.6 years for males, and 39.7 years for females. For every 100 females there are 98.7 males.

58.2K
Total Population
1,632
Density (mi²)
352 0.61%
Growth

Grafton township Population

Grafton township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202658,2343520.61%
202557,8823520.61%
202457,5303520.62%
202357,1782610.46%
202256,917370.07%
202156,8804330.77%
202056,447-22-0.04%
201955,669-202-0.36%
201855,8713550.64%
201755,5164980.91%
201655,0182640.48%
201554,7544660.86%
201454,2883230.6%
201353,9653940.74%
201253,5713190.6%
201153,2521150.22%
201053,179650.12%

Median Age

Overall: 39.7 years
Female: 39.7 years
Male: 39.6 years

Grafton township Adults

There are 42,209 adults, (8,514 of whom are seniors) in Grafton township.

Sex Ratio

Female: 28,685 (50.3%)
Male: 28,311 (49.7%)

Demographics

The racial composition of Grafton township includes 78.55% White, 6.94% Asian, 3.08% Black or African American, and smaller percentages for other race, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White44,77078.55%
Two or more races4,8688.54%
Asian3,9556.94%
Black or African American1,7563.08%
Other race1,5362.69%
Native American1110.19%
Race
Population ↓
Percentage (of total)
Two or more races3,4466.05%
White2,1913.84%
Other race1,4032.46%
Black or African American3550.62%
Native American1110.19%
Asian240.04%
Race
Population ↓
Percentage (of total)
White42,57974.71%
Asian3,9316.9%
Two or more races1,4222.49%
Black or African American1,4012.46%
Other race1330.23%

Grafton township Marital Status

Economics and Income Statistics

Grafton township 's average per capita income is $70,227. Household income levels show a median of $130,767. The poverty rate stands at 4.39%.

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$167,459-
Families$153,910$171,214
Households$130,767$152,470
Non Families$61,054$76,210

$70,227

Average Income

$130,767

Median Household Income

4.39%

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)