Lake County is located in northeastern Illinois, with Lake Michigan to the east, Wisconsin to the north and the City of Chicago to the south. The county's communities include picturesque rural communities, highly developed urban centers, wealthy suburbs and tourist communities.
Looking for a particular Lake County employee's phone or email?
The Lake County annual revenue was $187.1 million in 2026.
Chris Blanding is the CIO of Lake County.
597 people are employed at Lake County.
Lake County is based in Waukegan, Illinois.
The NAICS codes for Lake County are [92, 9211, 922, 92113, 9221, 921].
The SIC codes for Lake County are [91, 919].