Lake County has worked with each department and elected office to compile and codify all County Codes and Ordinances. Please contact the Planning, Building, and Development Department at 847.377.2600 with any questions.

The Lake County Code is searchable, use the Lake County Code website’s “quick search” function to return search results from within all County Codes or use the (ctrl+f) search function built in to most browser to return search results from within the section of the Ordinance open in your browser window.

Use the link below to access the Lake County, Illinois Code of Ordinances and the Unified Development and Nuisance chapters of the Code.