Carlyle is located in Clinton County, Illinois. Carlyle has a 2025 population of 3,810 . It is also the county seat of Clinton County . Carlyle is currently growing at a rate of 0.37% annually but its population has decreased by -0.31% since the most recent census, which recorded a population of 3,822 in 2020.
The average household income in Carlyle is $101,477 with a poverty rate of 6.36%. The median age in Carlyle is 37.2 years: 35.7 years for males, and 38.9 years for females. For every 100 females there are 87.9 males.
Data after 2023 is projected based on recent change
The racial composition of Carlyle includes 91.82% White, and smaller percentages for Black or African American, Native American and multiracial populations.
White (91.82%)
Two or more races (6.11%)
Black or African American (2.02%)
Native American (0.05%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 3,501 | 91.82% |
| Two or more races | 233 | 6.11% |
| Black or African American | 77 | 2.02% |
| Native American | 2 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
Carlyle's average per capita income is $45,817. Household income levels show a median of $75,982. The poverty rate stands at 6.36%.
Name | Median | Mean |
|---|---|---|
| Married Families | $100,625 | - |
| Families | $94,286 | $121,153 |
| Households | $75,982 | $101,477 |
| Non Families | $44,804 | $51,441 |
Average Income
Median Household Income
Poverty Rate