Hammond IL ZIP Code
Hammond city is located in Illinois State, Piatt County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Hammond IL zip code by its streets and block numbers if we have some of the Hammond streets loaded in our website
Hammond Area Code is 217 and Time Zone is Central (GMT -06:00).
Hammond Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Hammond City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Hammond ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Hammond, Illinois.
The Hammond Zip Code is 61929.
If you want to send a mail to Hammond City, you should use the 61929 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Hammond 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 61929 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Hammond 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.