Chesterfield IL ZIP Code
Chesterfield city is located in Illinois State, Macoupin County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Chesterfield IL zip code by its streets and block numbers if we have some of the Chesterfield streets loaded in our website
Chesterfield Area Code is 618 and Time Zone is Central (GMT -06:00).
Chesterfield Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Chesterfield City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Chesterfield ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Chesterfield, Illinois.
The Chesterfield Zip Code is 62630.
If you want to send a mail to Chesterfield City, you should use the 62630 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Chesterfield 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 62630 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Chesterfield 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.