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Will County is located in the northern part of Illinois and is one of the fastest-growing counties in the United States. The county seat of Will County is Joliet. Founded in 1836, today Will County is a major hub for roads, rail, and natural gas pipelines.

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The County Offices are open from 8:30 a.m. to 4:30 p.m. Monday through Friday except for holidays. View the calendar to see if the county office is open when you wish to visit. Certain services require appointments. Visit the web page of the department providing that service and check appointment details.  General Information: 815.722.5515