Illinois Monroe County St. Clair County
Dupo
A village in St. Clair County, Illinois — population 3,845 as of 2020.
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Today
91°F
Sunny1% precip
Tonight
69°F
Partly Cloudy4% precip
Sunday
88°F
Partly Sunny then Chance Showers And Thunderstorms29% precip
Sunday Night
64°F
Chance Showers And Thunderstorms29% precip
In and around Dupo
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Dupo by the numbers
Population
3,845Population figure, 2020
Households & income
- Area
- 6.4 sq mi (16.58 km²), 0.02 sq mi water
- Median age
- 42.9
- Households
- 1,598
- Persons per household
- 2.4
- Median household income
- $61,644
- Median house value
- $113,800
Municipal office
- Office
- MAYIR
- Address
- 107 N 2ND ST, DUPO, IL 62239