Iroquois County's estimated 2026 population is 26,135 with a growth rate of 0.13% in the past year according to the most recent United States census data. Iroquois County is the 50th largest county in Illinois. The 2010 population was 29,701 and has seen a growth of -12.01% since that time.
Data after 2023 is projected based on recent change
The racial composition of Iroquois County includes 89.59% White, 4% other race, and smaller percentages for Black or African American, Asian, Native American and multiracial populations.
White (89.59%)
Two or more races (5.04%)
Other race (4%)
Black or African American (0.68%)
Asian (0.37%)
Native American (0.32%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 23,962 | 89.59% |
| Two or more races | 1,348 | 5.04% |
| Other race | 1,069 | 4% |
| Black or African American | 182 | 0.68% |
| Asian | 99 | 0.37% |
| Native American | 86 | 0.32% |
Married
Widowed
Divorced
Separated
Never Married
Iroquois County's average per capita income is $43,709. Household income levels show a median of $62,439. The poverty rate stands at 13.39%.
Name | Median | Mean |
|---|---|---|
| Married Families | $98,156 | $116,075 |
| Families | $81,973 | $99,346 |
| Households | $62,439 | $81,382 |
| Non Families | $35,437 | $45,872 |
Average Income
Median Household Income
Poverty Rate
