Chatham IL ZIP Code
Last added ZIP code areas:
Chatham city is located in Illinois State, Sangamon County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Chatham IL zip code by its streets and block numbers if we have some of the Chatham streets loaded in our website
Chatham Area Code is 217 and Time Zone is Central (GMT -06:00).
Chatham Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Chatham City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Chatham ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Chatham, Illinois.
The Chatham Zip Code is 62629.
If you want to send a mail to Chatham City, you should use the 62629 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Chatham 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 62629 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Chatham 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.