Romeoville IL ZIP Code
Romeoville city is located in Illinois State, Will County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Romeoville IL zip code by its streets and block numbers if we have some of the Romeoville streets loaded in our website
Romeoville Area Code is 815 and Time Zone is Central (GMT -06:00).
Romeoville Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Romeoville City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Romeoville ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Romeoville, Illinois.
The Romeoville Zip Code is 60446.
If you want to send a mail to Romeoville City, you should use the 60446 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Romeoville 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 60446 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Romeoville 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.