USPS Announces New Zip Code 85144 for Select San Tan Valley Residences

The United States Postal Service (USPS) has recently announced the addition of a new zip code - 85144 - to the existing postal codes in San Tan Valley, Arizona. This decision comes as a response to increased population growth and business development in the region.

Dear Postal Customer,

We want to inform you about a coming change in your zip code that will enable us to maintain our quality service and delivery standards. This change is necessary due to a large increase in population and in the number of companies doing business in our area. Your new Zip will help us sort, ship and deliver your mail more efficiently.

Effective July 1, 2023, your new zip code will be 85144.

Change is not always easy or convenient, but your new Zip code will provide additional room for growth in the community and effective mail delivery for years to come.

It is important that you begin using your new Zip Code on the effective date. To make this change as easy as possible for you, the Postal Service will ensure delivery of your mail with the old Zip Code for a period of one year. Remember when purchasing new return address labels or stationary, be sure to use your new Zip Code.

We are sure you will find that using this new zip code will result in more timely delivery of your mail than ever before.

If you have any questions concerning your address, please contact The Postal Service Ams Office at 602.225.3460.

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San Tan Valley residents are advised to take note of this development and start informing their correspondents about their new zip code effective July 1, 2023.

Note: Those properties affected by this zip code change will still be located in San Tan Valley and should be using San Tan Valley, AZ 85144 as both their mailing and physical address.  The only exception are the businesses on the "inside of the J-curve" such as Earnhardt, Dunkin, and the U-HAUL, as that corner was annexed into the Town of Queen Creek.  While their zip code is also changing, they will continue to be Queen Creek, 85144. These addresses include the Goldmine Estates subdivision, Earnhardt Queen Creek, and U-Haul Moving & Storage. The rest of the addresses will use San Tan Valley, AZ 85144.

New 85144 Zip Code Area Map