Harwood Heights IL ZIP Code
Harwood Heights city is located in Illinois State, Cook County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Harwood Heights IL zip code by its streets and block numbers if we have some of the Harwood Heights streets loaded in our website
Harwood Heights Area Code is 773/872/224 and Time Zone is Central (GMT -06:00).
Harwood Heights Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Harwood Heights City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Harwood Heights ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Harwood Heights, Illinois.
The Harwood Heights Zip Code is 60706.
If you want to send a mail to Harwood Heights City, you should use the 60706 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Harwood Heights 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 60706 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Harwood Heights 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.