Dupo Flag

Dupo

County Seat:
No
Area (mi²):
6.403
State:
Illinois

Dupo is a village located in St. Clair County, Illinois. Dupo has a 2026 population of 3,707. Dupo is currently declining at a rate of -1.2% annually and its population has decreased by -6.77% since the most recent census, which recorded a population of 3,976 in 2020.

The median household income in Dupo is $61,644 with a poverty rate of 8.53%. The median age in Dupo is 42.9 years: 37.7 years for males, and 43.5 years for females. For every 100 females there are 128.0 males.

3.7K
Total Population
579
Density (mi²)
-45 -1.2%
Growth

Dupo Population

Dupo Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20263,707-45-1.2%
20253,752-45-1.19%
20243,797-32-0.84%
20233,829-43-1.11%
20223,872-55-1.4%
20213,927-60-1.5%
20203,976962.47%
20193,880-46-1.17%
20183,926-31-0.78%
20173,957-17-0.43%
20163,974-23-0.58%
20153,997-37-0.92%
20144,034-31-0.76%
20134,065-45-1.09%
20124,110-36-0.87%
20114,146-31-0.74%
20104,177390.94%
20003,93376924.3%
19903,1641254.11%
19803,0391976.93%
19702,842-95-3.23%
19602,93700%

Median Age

Overall: 42.9 years
Female: 43.5 years
Male: 37.7 years

Dupo Adults

There are 3,103 adults, (576 of whom are seniors) in Dupo.

Sex Ratio

Female: 1,701 (43.9%)
Male: 2,178 (56.1%)

Demographics

The racial composition of Dupo includes 86.59% White, 5.49% Black or African American, and smaller percentages for other race, Asian and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White3,35986.59%
Two or more races2656.83%
Black or African American2135.49%
Other race230.59%
Asian190.49%
Race
Population ↓
Percentage (of total)
White370.95%
Other race230.59%
Race
Population ↓
Percentage (of total)
White3,32285.64%
Two or more races2656.83%
Black or African American2135.49%
Asian190.49%

Dupo Marital Status

Economics and Income Statistics

Dupo 's average per capita income is $41,190. Household income levels show a median of $61,644. The poverty rate stands at 8.53%.

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$84,291-
Families$72,741$83,032
Households$61,644$74,815
Non Families$42,639$46,240

$41,190

Average Income

$61,644

Median Household Income

8.53%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)