Henderson Flag

Henderson

County:
Knox County
County Seat:
No
Area (mi²):
33.814
State:
Illinois

Henderson is located in Knox County, Illinois. Henderson has a 2025 population of 1,116 . Henderson is currently growing at a rate of 0.18% annually but its population has decreased by -2.02% since the most recent census, which recorded a population of 1,139 in 2020.

The average household income in Henderson is $93,023 with a poverty rate of 7.29%. The median age in Henderson is 39.7 years: 39.8 years for males, and 39.7 years for females. For every 100 females there are 97.3 males.

1.1K
Total Population
33
Density (mi²)
2 0.18%
Growth

Henderson Population

Henderson Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Henderson includes 92.53% White, and smaller percentages for Black or African American, other race and multiracial populations.

Population by Race

White (92.53%)

Two or more races (6.38%)

Black or African American (0.66%)

Other race (0.42%)

Race
Population
Percentage (of total)
White1,53792.53%
Two or more races1066.38%
Black or African American110.66%
Other race70.42%

Henderson Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Henderson's average per capita income is $36,507. Household income levels show a median of $69,688. The poverty rate stands at 7.29%.

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$84,054-
Families$83,074$108,579
Households$69,688$93,023
Non Families$50,025$47,717

$36,507

Average Income

$69,688

Median Household Income

7.29%

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)