Jo Daviess County's estimated 2026 population is 21,532 with a growth rate of -0.29% in the past year according to the most recent United States census data. Jo Daviess County is the 53rd largest county in Illinois. The 2010 population was 22,647 and has seen a growth of -4.92% since that time.
Data after 2023 is projected based on recent change
Overall: 51.5 years
Female: 52.9 years
Male: 49.7 years
There are 17,879 adults, (6,541 of whom are seniors) in Jo Daviess County.
Female: 10,923 (50%)
Male: 10,928 (50%)
The racial composition of Jo Daviess County includes 93.52% White, and smaller percentages for other race, Black or African American, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 20,434 | 93.52% |
| Two or more races | 866 | 3.96% |
| Other race | 193 | 0.88% |
| Black or African American | 166 | 0.76% |
| Asian | 118 | 0.54% |
| Native American | 63 | 0.29% |
| Native Hawaiian or Pacific Islander | 11 | 0.05% |
Jo Daviess County's average per capita income is $48,008. Household income levels show a median of $73,993. The poverty rate stands at 7.84%.
Name | Median | Mean |
|---|---|---|
| Married Families | $102,519 | - |
| Families | $94,453 | $116,827 |
| Households | $73,993 | $95,031 |
| Non Families | $41,826 | $54,052 |
Average Income
Median Household Income
Poverty Rate
