Organization Information

Address Management

Post Office Changes

The table shown here includes Post Offices that have been suspended for years. Customers in these communities are being served by nearby offices. The listings in this table represent the administrative action of the Postal Service™ officially closing these offices.

 

Old/New	Finance No.	ZIP Code	State	P.O. Name	County/Parish	Station/ Branch/Unit	Unit Type	Effective Date	Comments
Old	17-7293	47978	IN	Rensselaer	Jasper	Collegeville	Classified Branch	07/01/2017
New	17-7293	47978	IN	Rensselaer	Jasper	Collegeville	Place Name	07/05/2025	Classified Branch discontinued. Retain ZIP Code™. Establish a Place Name. Continue to use Collegeville, IN 47978 as the last line of address.
Old	22-2205	04226	ME	East Andover	Oxford	Main Office	Post Office	04/29/2017
New	22-5115	04226	ME	Mexico	Oxford	East Andover	Place Name	08/02/2025	Post Office™ discontinued. Retain ZIP Code. Establish a Place Name. Continue to use East Andover, ME 04226 as the last line of address.
Old	37-1584	58838	ND	Cartwright	Mckenzie	Main Office	Post Office	03/21/2019
New	29-7758	58838	MT	Sidney	Mckenzie	Cartwright	Place Name	07/26/2025	Post Office discontinued. Retain ZIP Code. Establish a Place Name. Continue to use Cartwright, ND 58838 as the last line of address.
Old	39-6578	74753	OK	Platter	Bryan	Main Office	Post Office	06/07/2019
New	39-1320	74753	OK	Calera	Bryan	Platter	Place Name	07/05/2025	Post Office discontinued. Retain ZIP Code. Establish a Place Name. Continue to use Platter, OK 74753 as the last line of address.

— Address Management, Addressing and Geospatial Technology, 8-7-25