Monroe County's estimated 2026 population is 34,619 with a growth rate of -0.5% in the past year according to the most recent United States census data. Monroe County is the 41st largest county in Illinois. The 2010 population was 33,051 and has seen a growth of 4.74% since that time.
Data after 2023 is projected based on recent change
The racial composition of Monroe County includes 96.13% White, and smaller percentages for Two or more races, other race, Black or African American, Asian, Native American and multiracial populations.
White (96.13%)
Two or more races (1.93%)
Other race (0.77%)
Black or African American (0.59%)
Asian (0.47%)
Native American (0.11%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 33,615 | 96.13% |
| Two or more races | 674 | 1.93% |
| Other race | 269 | 0.77% |
| Black or African American | 208 | 0.59% |
| Asian | 166 | 0.47% |
| Native American | 37 | 0.11% |
Married
Widowed
Divorced
Separated
Never Married
Monroe County's average per capita income is $63,551. Household income levels show a median of $101,635. The poverty rate stands at 4.58%.
Name | Median | Mean |
|---|---|---|
| Married Families | $137,948 | - |
| Families | $128,922 | $147,261 |
| Households | $101,635 | $122,572 |
| Non Families | $49,252 | $57,374 |
Average Income
Median Household Income
Poverty Rate
