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 269775 56140 MN Windom Pipestone Ihlen Place Name     New 267500 56140 MN Pipestone Pipestone Ihlen Place Name 07/02/2022 This announcement changes the administrative office for this ZIP Code™ from Windom, MN to Pipestone, MN. Continue to use Ihlen, MN 56140 as the last line for addresses. — Address Management, Addressing and Geospatial Technology, 7-14-22