About Joliet, IL

Joliet is the 4th biggest city in Illinois and it is also one of the fastest growing cities in the region. Joliet is actually located in two different counties, both Will and Kendall counties, while being the county seat of Will County. As of the 2010 Census, the city had a population of almost 150,000 residents. Juliet is well known for its multiple waterways including the Des Plaines River, Chase Lake, Michigan Beach, Jackson Creek and the DuPage River.

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Zip Codes for Joliet, IL: