Knox Flag

Knox

County:
Knox County
County Seat:
No
Area (mi²):
35.412
State:
Illinois

Knox is located in Knox County, Illinois. Knox has a 2025 population of 4,850 . Knox is currently growing at a rate of 0.21% annually but its population has decreased by -1.58% since the most recent census, which recorded a population of 4,928 in 2020.

The average household income in Knox is $82,582 with a poverty rate of 11.36%. The median age in Knox is 45.2 years: 38.1 years for males, and 52 years for females. For every 100 females there are 85.4 males.

4.8K
Total Population
137
Density (mi²)
10 0.21%
Growth

Knox Population

Knox Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Knox includes 96.61% White, and smaller percentages for Two or more races, Asian, Black or African American, Native American and multiracial populations.

Population by Race

White (96.61%)

Two or more races (2.63%)

Asian (0.37%)

Black or African American (0.31%)

Native American (0.08%)

Race
Population
Percentage (of total)
White4,70296.61%
Two or more races1282.63%
Asian180.37%
Black or African American150.31%
Native American40.08%

Knox Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Knox's average per capita income is $47,020. Household income levels show a median of $78,063. The poverty rate stands at 11.36%.

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$103,792-
Families$97,083$101,080
Households$78,063$82,582
Non Families$26,875$44,539

$47,020

Average Income

$78,063

Median Household Income

11.36%

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)