Jo Daviess County Flag

Jo Daviess County

State:
Illinois
County Seat:
Galena

Jo Daviess County's estimated 2025 population is 21,578 with a growth rate of -0.41% 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 -4.72% since that time.

21,578
Total Population
36
Population Density (miĀ²)
53
Population Rank (State)
-89 -0.41%
Annual Population Growth

Jo Daviess County Population

Jo Daviess County Population

Data after 2023 is projected based on recent change

Demographics

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.

Population by Race

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White20,60794.02%
Two or more races7573.45%
Black or African American1810.83%
Other race1680.77%
Asian1240.57%
Native American680.31%
Native Hawaiian or Pacific Islander130.06%

Jo Daviess County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

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%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$100,171-
Families$93,609$110,326
Households$74,954$92,828
Non Families$42,966$59,052

$46,406

Average Income

$74,954

Median Household Income

8.04%

Poverty Rate