It is 7.75%
Plainfield, IL is in Will County.
Barrington, IL is in Lake county.
Deerfield, IL is in Lake county.
Rockford, IL is within the boundaries of Winnebago County.
The county seat of Will County, IL is Joliet.
Forest Lake, IL is in Lake county.
Lake County.
Lee County
Madison County
Lindenhurst, IL is in Lake county.
Bannockburn, IL is in Lake county.