Harvard IL ZIP Code
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Harvard 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 Harvard IL zip code by its streets and block numbers if we have some of the Harvard streets loaded in our website
Harvard Area Code is 815 and Time Zone is Central (GMT -06:00).
Harvard Zip Code - Illinois
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Harvard City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Harvard ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Harvard, Illinois.
The Harvard Zip Code is 60033.
If you want to send a mail to Harvard City, you should use the 60033 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Harvard 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 60033 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Harvard 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.