Much to the dismay of many Queen Creek residents, the United States Postal Service recently announced that effective July 1, 2009, Pinal county’s ZIP codes will be changing. Thirty ZIP codes in Pinal County will change from beginning with ‘852‘ to beginning with ‘851‘. If your ZIP code began with ‘852‘, the ‘2‘ is now changing to a ‘1‘. For example, if your current ZIP code is ‘85242‘, as of July 1, it will become ‘85142‘.
This annoying change is due to the dramatic population increase in the ‘852‘ area. All East Valley cities fell into this area. The new ‘851‘ ZIP codes will cover an area encompassing nearly 5000 square miles.
Although the change is effective July 1, 2009, there is a one-year transition period, during which, both old and new ZIPs will be valid for mail delivery. It seems like a huge inconvenience, but take it from one who has gone through it, this is one of life’s minor annoyances!
CLICK HERE to view New ‘851′ ZIP code area boundary map
GENERAL BOUNDARIES of new ‘851′ ZIP code area:
North –
Pinal County boundary at the Sierra Estrella Mountains and the Gila River, east along Hunt Highway, north on Meridian Road to the Tonto National Forest.
East –
Tonto National Forest to Pinto Creek, southeast to San Carlos Lake, south to Aravaipa Wilderness Area.
South –
Aravaipa Canyon Wilderness Area and Calle Zapata west to Arizona Hwy 77, northwest to Freeman Rd, south on Marylynne Lane alignment to Pinal Air Park Road alignment, west to Tohono O’odham Indian Reservation.
West –
Tohono O’odham Indian reservation north to the Sierra Estrella Mountains and the Gila River.








