Cornwall township Flag

Cornwall township

County:
Henry County
County Seat:
No
Area (mi²):
35.586
State:
Illinois

Cornwall township is located in Henry County, Illinois. Cornwall township has a 2026 population of 251. Cornwall township is currently declining at a rate of -0.4% annually and its population has decreased by -2.71% since the most recent census, which recorded a population of 258 in 2020.

The median household income in Cornwall township is $75,000 with a poverty rate of 4.18%. The median age in Cornwall township is 43.3 years: 41.7 years for males, and 43.7 years for females. For every 100 females there are 89.7 males.

251
Total Population
7.1
Density (mi²)
-1 -0.4%
Growth

Cornwall township Population

Cornwall township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026251-1-0.4%
2025252-1-0.4%
2024253-1-0.39%
2023254-1-0.39%
2022255-2-0.78%
2021257-1-0.39%
2020258-1-0.39%
2019269-1-0.37%
2018270-1-0.37%
2017271-1-0.37%
2016272-1-0.37%
2015273-1-0.36%
2014274-1-0.36%
2013275-2-0.72%
201227700%
2011277-1-0.36%
201027800%

Median Age

Overall: 43.3 years
Female: 43.7 years
Male: 41.7 years

Cornwall township Adults

There are 160 adults, (62 of whom are seniors) in Cornwall township.

Sex Ratio

Female: 126 (52.7%)
Male: 113 (47.3%)

Demographics

The racial composition of Cornwall township includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White239100%
Race
Population ↓
Percentage (of total)
White239100%

Cornwall township Marital Status

Economics and Income Statistics

Cornwall township 's average per capita income is $91,307. Household income levels show a median of $75,000. The poverty rate stands at 4.18%.

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
Households$75,000$124,046
Non Families$54,125-
Families-$169,064
Married Families--

$91,307

Average Income

$75,000

Median Household Income

4.18%

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)