Organization Information Address Management Post Office Changes   Old/New Finance No. ZIP Code State P. O. Name County Station/Branch/Unit Unit Type Effective Date Comments Old 23-4230 20635 MD Helen Saint Marys Main Office Post Office 10/31/2012   New 23-6012 20659 MD Mechanicsville Saint Marys Main Office Post Office 08/15/2022 Post Office™ and ZIP Code™ discontinued. Use Mechanicsville, MD 20659 as the last line of address. Old 35-0270 10910 NY Arden Orange Main Office Post Office 07/18/2009   New 35-7815 10910 NY Sloatsburg Orange Arden Place Name 08/15/2022 Post Office discontinued. Retain ZIP Code. Establish a Place Name. Continue to use Arden, NY 10910 as the last line of address. Old 35-0625 10912 NY Bellvale Orange Main Office Post Office 08/25/2010   New 35-3425 10912 NY Greenwood Lake Orange Bellvale Place Name 08/15/2022 Post Office discontinued. Retain ZIP Code. Establish a Place Name. Continue to use Bellvale, NY 10912 as the last line of address. Old 35-2200 13633 NY De Peyster Saint Lawrence Main Office Post Office 11/30/2015   New 35-3765 13633 NY Heuvelton Saint Lawrence De Peyster Place Name 08/15/2022 Post Office discontinued. Retain ZIP Code. Establish a Place Name. Continue to use De Peyster, NY 13633 as the last line of address. Old 35-8380 12424 NY Tannersville Greene East Jewett Classified Branch 09/30/2013   New 35-8380 12424 NY Tannersville Greene East Jewett Place Name 08/15/2022 Classified Branch discontinued. Retain ZIP Code. Establish a Place Name. Continue to use East Jewett, NY 12424 as the last line of address. Old 35-2995 13341 NY Franklin Springs Oneida Main Office Post Office 01/25/2013   New 35-1660 13341 NY Clinton Oneida Franklin Springs Place Name 08/15/2022 Post Office discontinued. Retain ZIP Code. Establish a Place Name. Continue to use Franklin Springs, NY 13341 as the last line of address. Old 35-3930 12089 NY Hoosick Rensselaer Main Office Post Office 06/27/2014   New 35-3935 12089 NY Hoosick Falls Rensselaer Hoosick Place Name 08/15/2022 Post Office discontinued. Retain ZIP Code. Establish a Place Name. Continue to use Hoosick, NY 12089 as the last line of address. Old 35-6885 13677 NY Pyrites Saint Lawrence Main Office Post Office 10/01/2015   New 35-1205 13677 NY Canton Saint Lawrence Pyrites Place Name 08/15/2022 Post Office discontinued. Retain ZIP Code. Establish a Place Name. Continue to use Pyrites, NY 13677 as the last line of address. Old 35-8205 10979 NY Sterling Forest Orange Main Office Post Office 07/01/2001   New 35-3425 10979 NY Greenwood Lake Orange Sterling Forest Place Name 08/15/2022 Post Office discontinued. Retain ZIP Code. Establish a Place Name. Continue to use Sterling Forest, NY 10979 as the last line of address. ­­— Address Management, Addressing and Geospatial Technology, 10-6-22