Waukegan IL ZIP Code
Waukegan city is located in Illinois State, Lake County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Waukegan IL zip code by its streets and block numbers if we have some of the Waukegan streets loaded in our website
Waukegan Area Code is 847/224 and Time Zone is Central (GMT -06:00).
Waukegan Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Waukegan City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Waukegan ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Waukegan, Illinois.
The Waukegan Zip Code is 60079, 60085, 60087.
If you want to send a mail to Waukegan City, you should use the 60079, 60085, 60087 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Waukegan ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 60079, 60085, 60087 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Waukegan city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in Illinois.