Lacon IL ZIP Code
Lacon city is located in Illinois State, Marshall County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Lacon IL zip code by its streets and block numbers if we have some of the Lacon streets loaded in our website
Lacon Area Code is 309 and Time Zone is Central (GMT -06:00).
Lacon Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Lacon City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Lacon ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Lacon, Illinois.
The Lacon Zip Code is 61540.
If you want to send a mail to Lacon City, you should use the 61540 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Lacon 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 61540 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Lacon 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.