Johnston City Zip Codes - Williamson County IL

Johnston City, IL Zip Code Map

Johnston City, IL is a city located in Williamson County, Illinois and has a land area of 27.67 square miles (71.67 km2). The water area for the city is 0.70 square miles or 1.81 km2. There is one unique zip code in Johnston City, Illinois and it is 62951. The area code(s) for Johnston City is 618.

Zip Codes for Johnston City, IL (1)
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62951 Johnston City Williamson

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