Rockford WA ZIP Code
Rockford city is located in Washington State, Spokane County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Rockford WA zip code by its streets and block numbers if we have some of the Rockford streets loaded in our website
Rockford Area Code is 509 and Time Zone is Pacific (GMT -08:00).
Rockford Zip Code - Washington
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Rockford City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Rockford ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Rockford, Washington.
The Rockford Zip Code is 99030.
If you want to send a mail to Rockford City, you should use the 99030 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Rockford 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 99030 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Rockford 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 Washington.