ZIP CodesZIP codes in Lake County, Illinois
Lake County, Illinois has 33 ZIP codes in this list, from 60002 to 60099. They cover 29 places, among them Waukegan, Barrington, North Chicago and Antioch.
Nothing in this county matches.
The ZIP code areas of Lake County add up to about 483 square miles of land (1,250 sq km) as the Census Bureau draws them. The largest is 60010 (Barrington), with 74.1 square miles.
Places with more than one code here: Waukegan (3 codes), Barrington (2 codes), North Chicago (2 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Antioch, IL 60002.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.