Illinois Flag

Illinois

County:
Nemaha County
County Seat:
No
Area (mi²):
35.785
State:
Kansas

Illinois is located in Nemaha County, Kansas. Illinois has a 2025 population of 525 . Illinois is currently declining at a rate of -0.19% annually and its population has decreased by -2.42% since the most recent census, which recorded a population of 538 in 2020.

The average household income in Illinois is $92,387 with a poverty rate of 4.9%. The median age in Illinois is 43 years: 50.5 years for males, and 42.1 years for females. For every 100 females there are 74.2 males.

525
Total Population
15
Density (mi²)
-1 -0.19%
Growth

Illinois Population

Illinois Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Illinois includes 94.44% White, and smaller percentages for Native American, Two or more races and multiracial populations.

Population by Race

White (94.44%)

Native American (2.91%)

Two or more races (2.65%)

Race
Population
Percentage (of total)
White35794.44%
Native American112.91%
Two or more races102.65%

Illinois Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Illinois' average per capita income is $51,389. Household income levels show a median of $88,009. The poverty rate stands at 4.9%.

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$89,183-
Families$88,798$104,174
Households$88,009$92,387
Non Families-$64,009

$51,389

Average Income

$88,009

Median Household Income

4.9%

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)