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Williamson County, IL

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IL

Williamson County Map

The County of Williamson is located in the State of Illinois. Find directions to Williamson County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the Williamson County population is estimated at 66,415 people. The Williamson County time zone is Central Daylight Time which is 6 hours behind Coordinated Universal Time (UTC).

Nearby counties include Franklin County, Jackson County, Johnson County, Pope County, Saline County, Union County.

Top cities include Marion, Herrin, Carterville, Johnston City, Crainville

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United States›Illinois›Williamson County, IL

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