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 (mi²)
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

5K10K15K20K25K1840186018801900192019401960198020002020YearPopulation

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

94.02%

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

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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