Organization Information Address Management Post Office Changes   Old/New Finance No. ZIP Code State P.O. Name County/Parish Station/Branch/Unit Unit Type Effective Date Comments Old 03-6845 85142 AZ Queen Creek Pinal Main Office Post Office     New 03-6845 85144 AZ Queen Creek Pinal San Tan Valley Place Name 07/01/2023 Establish a new ZIP Code™ for a delivery area. Use San Tan Valley, AZ 85144 as the last line of address for 8,918 deliveries previously in ZIP Code 85142. — Address Management, Addressing and Geospatial Technology, 6-1-23