Dupo Zip Codes - Saint Clair County IL

Dupo, IL Zip Code Map

Dupo, IL is a city located in Saint Clair County, Illinois and has a land area of 8.55 square miles (22.14 km2). The water area for the city is 0.19 square miles or 0.49 km2. There is one unique zip code in Dupo, Illinois and it is 62239. The area code(s) for Dupo is 618.

Zip Codes for Dupo, IL (1)
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62239 Dupo Saint Clair

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