Organization Information

Intelligent Mail and Address Quality

Post Office Changes

Old/New	Finance No.	ZIP Code	State	P.O. Name	County/Parish	Station/Branch/Unit	Unit Type	Effective Date	Comments
Old	18-8721	50252	IA	Swan	Marion	Main Office	Post Office	05/31/2005	Post Office™ discontinued. Retain ZIP™ Code. Establish a place name. Continue to use Swan IA 50252 as last line of address.
New	18-3942	50252	IA	Hartford	Marion	Swan	Place Name	05/01/2010
Old	39-0847	74529	OK	Blocker	Pittsburg	Main Office	Post Office	05/15/2005	Post Office discontinued. Retain ZIP Code. Establish a place name. Continue to use Blocker OK 74529 as last line of address.
New	39-5104	74529	OK	Mcalester	Pittsburg	Blocker	Place Name	04/17/2010
Old	41-3568	18201	PA	Hazleton	Luzerne	Broad Street	Classified Station	04/05/2009	Classified station discontinued. Retain ZIP Code. Continue to use Hazleton PA 18201 as last line of address.
New	41-3568	18201	PA	Hazleton	Luzerne	Main Office	Post Office	06/08/2010
Old	54-2842	98024	WA	Fall City	King	Main Office	Post Office		Realign ZIP Code boundaries. Use Issaquah WA 98075 as last line of address for the 282 deliveries previously in ZIP Code 98024.
New	54-3878	98075	WA	Issaquah	King	Main Office	Post Office	09/01/2010
Old	54-3878	98075	WA	Issaquah	King	Sammamish	Place Name		Realign ZIP Code boundaries. Use Issaquah WA 98029 as last line of address for the 83 deliveries previously in ZIP Code 98075.
New	54-3878	98029	WA	Issaquah	King	Main Office	Post Office	09/01/2010
Old	54-2786	98247	WA	Everson	Whatcom	Main Office	Post Office		Realign ZIP Code boundaries. Use Lynden WA 98264 as last line of address for the 13 deliveries previously in ZIP Code 98247.
New	54-2786	98264	WA	Lynden	Whatcom	Main Office	Post Office	09/01/2010
Old	54-3878	98027	WA	Issaquah	King	Main Office	Post Office		Realign ZIP Code boundaries. Use Bellevue WA 98006 as last line of address for the 6 deliveries previously in ZIP Code 98027.
New	54-0602	98006	WA	Bellevue	King	Main Office	Post Office	09/01/2010
Old	56-4980	53593	WI	Madison	Dane	Verona	Classified Branch		Realign ZIP Code boundaries. Use Middleton WI 53562 as last line of address for the 16 deliveries previously in ZIP Code 53593.
New	56-4980	53562	WI	Madison	Dane	Middleton	Classified Branch	07/31/2010

— Address Management, Intelligent Mail and Address Quality, 7-29-10