Putnam County Flag

Putnam County

State:
Illinois
County Seat:
Hennepin

Putnam County's estimated 2025 population is 5,577 with a growth rate of 0.14% in the past year according to the most recent United States census data. Putnam County is the 94th largest county in Illinois. The 2010 population was 6,014 and has seen a growth of -7.27% since that time.

5,577
Total Population
35
Population Density (mi²)
94
Population Rank (State)
8 0.14%
Annual Population Growth

Putnam County Population

Putnam County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Putnam County includes 92.89% White, and smaller percentages for other race, Asian, Black or African American, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White5,20292.89%
Two or more races1793.2%
Other race1562.79%
Asian360.64%
Black or African American130.23%
Native Hawaiian or Pacific Islander130.23%
Native American10.02%

Putnam County Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Putnam County's average per capita income is $49,178. Household income levels show a median of $77,526. The poverty rate stands at 9.95%.

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$103,512-
Families$93,265$107,164
Households$77,526$90,990
Non Families$40,042$51,413

$49,178

Average Income

$77,526

Median Household Income

9.95%

Poverty Rate