91789-2950 Zip Code
91789-2950 Zip Code is a 'Zip Code 5 Plus 4' zip code type in the state of California, Walnut City. This Zip Code is assigned to a street address number or a street address range in Walnut, CA - US.
91789-2950 Area Code is 909 and Time Zone is Pacific (GMT -08:00).
Remember you have 2 kinds of blocks: even or odd. In this case, this Zip Code is assigned to Even and Odd numbers in the corresponding block(s)
91789-2950 ZIP Code 5 Plus 4
The U.S. Postal Service introduced an expanded ZIP code system in Walnut named ZIP Code 5 Plus 4, often called "add-on codes" or "add ons" zip code. A ZIP Plus Four Code (ZIP+4) uses the basic Walnut Zip code (91789) plus four additional digits (2950) to identify a geographic segment within the five-digit delivery area, such as a the Business PKWY street 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 California.
The zip code 91789-2950, applies to residential houses, business, buildings, and every Walnut City properties with Even and Odd numeration buildings in this range:
20201 - 20299 Business PKWY, Walnut, California - US