Jo Daviess County's estimated 2026 population is 21,086 with a growth rate of -1.04% in the past year according to the most recent United States census data. Jo Daviess County is the 54th largest county in Illinois. The 2010 population was 22,647 and has seen a growth of -6.89% since that time.
Data after 2023 is projected based on recent change
The racial composition of Jo Daviess County includes 94.02% White, and smaller percentages for Black or African American, other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (94.02%)
Two or more races (3.45%)
Black or African American (0.83%)
Other race (0.77%)
Asian (0.57%)
Native American (0.31%)
Native Hawaiian or Pacific Islander (0.06%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 20,607 | 94.02% |
| Two or more races | 757 | 3.45% |
| Black or African American | 181 | 0.83% |
| Other race | 168 | 0.77% |
| Asian | 124 | 0.57% |
| Native American | 68 | 0.31% |
| Native Hawaiian or Pacific Islander | 13 | 0.06% |
Married
Widowed
Divorced
Separated
Never Married
Jo Daviess County's average per capita income is $46,406. Household income levels show a median of $74,954. The poverty rate stands at 8.04%.
Name | Median | Mean |
|---|---|---|
| Married Families | $100,171 | - |
| Families | $93,609 | $110,326 |
| Households | $74,954 | $92,828 |
| Non Families | $42,966 | $59,052 |
Average Income
Median Household Income
Poverty Rate
