General Property Tax Information | LAKE COUNTY CHIEF COUNTY ASSESSMENT OFFICE - Administration Services
18 North County Street, 7th Floor, Waukegan, IL 60085
Eligibility
Must be a Lake County resident
Hours
Service Hours
Monday: 8:30 AM - 5:00 PM
Tuesday: 8:30 AM - 5:00 PM
Wednesday: 8:30 AM - 5:00 PM
Thursday: 8:30 AM - 5:00 PM
Friday: 8:30 AM - 5:00 PM
847-377-2050
Voice·
Primary Program Phone
Website
https://www.lakecountyil.govLanguages
Spanish
Application process
Call for assistance, or visit website to apply using the Smart File portal
Documentation Required:
- Varies depending on services
Fees
No fee
Service area
All ZIP Codes, IL
Provides property assessment information on properties within Lake County. Other services include:
- Publishing both annual and supplemental assessment rolls
- Facilitates assessment appeals process in connection with Lake County Board Review
- Administration of all preferential exemption applicants
Last assured
08/26/2025
What's Here
Providing organization
LAKE COUNTY CHIEF COUNTY ASSESSMENT OFFICE
Office that provides home and tax assistance services.