Cairo is a city located in Alexander County, Illinois. Cairo has a 2026 population of 1,426. It is also the county seat of Alexander County. Cairo is currently declining at a rate of -3.26% annually and its population has decreased by -16.9% since the most recent census, which recorded a population of 1,716 in 2020.
The median household income in Cairo is $41,912 with a poverty rate of 18.95%. The median age in Cairo is 43.8 years: 40 years for males, and 48 years for females. For every 100 females there are 91.8 males.
Data after 2023 is projected based on recent change
Overall: 43.8 years
Female: 48 years
Male: 40 years
There are 1,292 adults, (380 of whom are seniors) in Cairo.
Female: 877 (52.1%)
Male: 805 (47.9%)
The racial composition of Cairo includes 75.74% Black or African American, 20.57% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| Black or African American | 1,274 | 75.74% |
| White | 346 | 20.57% |
| Two or more races | 62 | 3.69% |
Cairo 's average per capita income is $38,711. Household income levels show a median of $41,912. The poverty rate stands at 18.95%.
| Name | Median ↓ | Mean |
|---|---|---|
| Families | $53,631 | $81,566 |
| Households | $41,912 | $54,368 |
| Non Families | $21,750 | $26,455 |
| Married Families | - | - |
Average Income
Median Household Income
Poverty Rate