Frankfort Heights IL ZIP Code
Frankfort Heights city is located in Illinois State, Franklin County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Frankfort Heights IL zip code by its streets and block numbers if we have some of the Frankfort Heights streets loaded in our website
Frankfort Heights Area Code is 618 and Time Zone is Central (GMT -06:00).
Frankfort Heights Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Frankfort Heights City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Frankfort Heights ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Frankfort Heights, Illinois.
The Frankfort Heights Zip Code is 62840.
If you want to send a mail to Frankfort Heights City, you should use the 62840 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Frankfort Heights 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 62840 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Frankfort Heights 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.