Information Desk

Address Management

Old/New	Finance No.	ZIP Code	State	P.O. Name	County/Parish	Station/Branch/Unit	Unit Type	Effective Date	Comments
Old	07-5220	80026	CO	Lafayette	Boulder	Main Office	Post Office		Realign ZIP Code™ boundaries. Use Louisville CO 80027 as last line of address for the 1 delivery previously in ZIP Code 80026.
New	07-5670	80027	CO	Louisville	Boulder	Main Office	Post Office	11/10/2007
Old	18-5760	50467	IA	Mason City	Cerro Gordo	Rock Falls	Community Post Office	03/13/2006	Community Post Office discontinued. Retain ZIP Code. Establish a place name. Continue to use Rock Falls IA 50467 as last line of address.
New	18-3582	50467	IA	Grafton	Cerro Gordo	Rock Falls	Place Name	07/21/2007
Old	18-0549	50671	IA	Aurora	Fayette	Stanley	Community Post Office	10/11/2006	Community Post Office discontinued. Retain ZIP Code. Establish a place name. Continue to use Stanley IA 50671 as last line of address.
New	18-6714	50671	IA	Oelwein	Fayette	Stanley	Place Name	05/06/2006
Old	18-5760	50467	IA	Mason City	Cerro Gordo	Rock Falls	Community Post Office		This announcement expands the use of ZIP Code 50467 to include delivery.
New	18-5760	50467	IA	Mason City	Cerro Gordo	Rock Falls	Community Post Office	12/07/2007
Old	18-1386	50839	IA	Carbon	Adams	Main Office	Post Office		This announcement expands the use of ZIP Code 50839 to include delivery.
New	18-1386	50839	IA	Carbon	Adams	Main Office	Post Office	12/07/2007

— Address Management, Intelligent Mail and Address Quality, 12-20-07