Dupo is a village located in St. Clair County, Illinois. Dupo has a 2025 population of 3,717. Dupo is currently declining at a rate of -1.38% annually and its population has decreased by -6.51% since the most recent census, which recorded a population of 3,976 in 2020.
The average household income in Dupo is $76,366 with a poverty rate of 9.91%.The median age in Dupo is 43.1 years: 39.3 years for males, and 43.7 years for females.
Data after 2023 is projected based on recent change
The racial composition of Dupo includes 87.02% White, 6.64% Black or African American, and smaller percentages for and multiracial populations.
White (87.0%)
Black or African American (6.6%)
Two or more races (6.3%)
Race | Population | Percentage (of total) |
---|---|---|
White | 3,406 | 87.02% |
Black or African American | 260 | 6.64% |
Two or more races | 248 | 6.34% |
Married
Widowed
Divorced
Separated
Never Married
Dupo's average per capita income is $36,282. Household income levels show a median of $57,899. The poverty rate stands at 9.91%.
Name | Median | Mean |
---|---|---|
Married Families | $87,645 | - |
Families | $73,552 | $88,259 |
Households | $57,899 | $76,366 |
Non Families | $39,350 | $47,140 |
Average Income
Median Household Income
Poverty Rate