Seneca Zip Codes - La Salle County IL

Seneca, IL Zip Code Map

Seneca, IL is a city located in La Salle County, Illinois and has a land area of 47.40 square miles (122.77 km2). The water area for the city is 0.37 square miles or 0.96 km2. There is one unique zip code in Seneca, Illinois and it is 61360. The area code(s) for Seneca is 815.

Zip Codes for Seneca, IL (1)
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61360 Seneca La Salle

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