Cornwall Flag

Cornwall

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

Cornwall is located in Henry County, Illinois. Cornwall has a 2025 population of 252 . Cornwall is currently declining at a rate of -0.4% annually and its population has decreased by -2.33% since the most recent census, which recorded a population of 258 in 2020.

The average household income in Cornwall is $134,890 with a poverty rate of 2.11%. The median age in Cornwall is 41.5 years: 41.2 years for males, and 43.2 years for females. For every 100 females there are 89.1 males.

252
Total Population
7
Density (mi²)
-1 -0.4%
Growth

Cornwall Population

Cornwall Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (100%)

Race
Population
Percentage (of total)
White331100%

Cornwall Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Cornwall's average per capita income is $87,784. Household income levels show a median of $107,679. The poverty rate stands at 2.11%.

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
Families$109,911$157,363
Married Families$109,911-
Households$107,679$134,890
Non Families--

$87,784

Average Income

$107,679

Median Household Income

2.11%

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)