Iroquois County's estimated 2026 population is 26,078 with a growth rate of -0.28% 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 -12.2% since that time.
Data after 2023 is projected based on recent change
Overall: 44.4 years
Female: 45.5 years
Male: 43 years
There are 20,746 adults, (5,977 of whom are seniors) in Iroquois County.
Female: 13,327 (50.4%)
Male: 13,122 (49.6%)
The racial composition of Iroquois County includes 88.78% White, 4% other race, and smaller percentages for Black or African American, Native American, Asian and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 23,481 | 88.78% |
| Two or more races | 1,471 | 5.56% |
| Other race | 1,058 | 4% |
| Black or African American | 213 | 0.81% |
| Native American | 137 | 0.52% |
| Asian | 89 | 0.34% |
Iroquois County's average per capita income is $46,608. Household income levels show a median of $66,255. The poverty rate stands at 12.5%.
Name | Median | Mean |
|---|---|---|
| Married Families | $102,962 | $118,946 |
| Families | $86,352 | $103,145 |
| Households | $66,255 | $84,074 |
| Non Families | $36,352 | $46,656 |
Average Income
Median Household Income
Poverty Rate
