Cairo Flag

Cairo

County Seat:
Yes
Area (mi²):
6.987
State:
Illinois

Cairo is a city located in Alexander County, Illinois. Cairo has a 2025 population of 1,452. It is also the county seat of Alexander County. Cairo is currently declining at a rate of -3.52% annually and its population has decreased by -15.38% since the most recent census, which recorded a population of 1,716 in 2020.

The average household income in Cairo is $47,868 with a poverty rate of 21.49%.The median age in Cairo is 43.2 years: 39.9 years for males, and 48 years for females.

1.5K
Total Population
208
Density (mi²)
-53 -3.52%
Growth

Cairo Population

Cairo Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Cairo includes 67.45% Black or African American, 26.9% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
Black or African American1,14667.45%
White45726.9%
Two or more races965.65%

Cairo Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Cairo's average per capita income is $35,278. Household income levels show a median of $35,493. The poverty rate stands at 21.49%.

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$75,250-
Families$53,094$66,931
Households$35,493$47,868
Non Families$25,556$27,625

$35,278

Average Income

$35,493

Median Household Income

21.49%

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)