what is zip code in clinton il
Clinton Zip Code - Illinois. The US ZIP Code basic format consists of five decimal numerical digits assigned to the Clinton City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Clinton ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Clinton, Illinois. The Clinton Zip Code is 61727. If you want to send a mail to Clinton City, you should use the 61727 Zip Code. In 1983, the U.S. Postal Service introduced an expanded Clinton ZIP code system that it called ZIP+4, often called plus-four codes, add-on codes, or add ons.