Hennepin IL ZIP Code
Hennepin city is located in Illinois State, Putnam County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Hennepin IL zip code by its streets and block numbers if we have some of the Hennepin streets loaded in our website
Hennepin Area Code is 815/779 and Time Zone is Central (GMT -06:00).
Hennepin Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Hennepin City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Hennepin ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Hennepin, Illinois.
The Hennepin Zip Code is 61327.
If you want to send a mail to Hennepin City, you should use the 61327 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Hennepin 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 61327 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Hennepin 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.