Hillsdale IL ZIP Code

Hillsdale city is located in Illinois State, Rock Island County and has a unique zip code assigned by the US Postal Service Office.

You can search for the Hillsdale IL zip code by its streets and block numbers if we have some of the Hillsdale streets loaded in our website

Hillsdale Area Code is 309 and Time Zone is Central (GMT -06:00).

Hillsdale Zip Code - Illinois

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Hillsdale City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Hillsdale ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Hillsdale, Illinois.

The Hillsdale Zip Code is 61257.

If you want to send a mail to Hillsdale City, you should use the 61257 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Hillsdale 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 61257 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Hillsdale 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.

Hillsdale, Illinois - MAP

What is the Hillsdale Zip Code?

The Hillsdale Zip Code in Illinois is 61257.

ZIP Plus 4 Hillsdale - US Streets Zip Codes

By pressing keys ctrol + F you can search Hillsdale zip codes by its streets, highways, and know the ZIP+4 US ZIP Code

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What is the zip code for Hillsdale IL?


Hillsdale, Illinois - US Zip Code

Hillsdale ZIP Code Lookup

61257 Zip Code File:
Zip Code: 61257,
City: Hillsdale
Hillsdale Area Code: 309
Hillsdale, IL - Time Zone: Central (GMT -06:00)
County: Rock Island
City Alias: Hillsdale
State: Illinois
State Abb: IL

Illinois Zip+4 - Nearby Hillsdale Cities

Cities near Hillsdale in Illinois
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