Alden IL ZIP Code
Alden city is located in Illinois State, Mchenry County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Alden IL zip code by its streets and block numbers if we have some of the Alden streets loaded in our website
Alden Area Code is 815 and Time Zone is Central (GMT -06:00).
Alden Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Alden City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Alden ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Alden, Illinois.
The Alden Zip Code is 60001.
If you want to send a mail to Alden City, you should use the 60001 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Alden 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 60001 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Alden 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.