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All United States ZIP Codes

ZIP, County, Place name or State

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US ZIP Codes by County on P

To see a list of all ZIP codes by County on the selected letter, select the desired County from the list or write the desired County in the appropriate field and click Search.
Plymouth
Providence
Penobscot
Piscataquis
Passaic
Putnam
Potter
Perry
Pike
Philadelphia
Prince William
Prince George's
Prince Georges
Page
Powhatan
Portsmouth (city)
Prince George
Petersburg (city)
Prince Edward
Patrick
Pulaski
Pittsylvania
Pocahontas
Pleasants
Preston
Pendleton
Person
Pitt
Pasquotank
Perquimans
Pender
Pamlico
Polk
Pickens
Paulding
Peach
Pierce
Palm Beach
Pasco
Pinellas
Pickett
Panola
Pontotoc
Prentiss
Pearl River
Powell
Pickaway
Portage
Preble
Porter
Posey
Parke
Presque Isle
Poweshiek
Palo Alto
Pottawattamie
Price
Pepin
Pine
Pipestone
Pope
Pennington
Perkins
Pembina
Park
Powder River
Petroleum
Phillips
Prairie
Pondera
Peoria
Piatt
Pemiscot
Platte
Pettis
Phelps
Pottawatomie
Pratt
Pawnee
Plaquemines
Pointe Coupee
Poinsett
Payne
Pittsburg
Pushmataha
Parker
Palo Pinto
Parmer
Pecos
Presidio
Pueblo
Prowers
Pitkin
Power
Payette
Piute
Pinal
Pima
Pershing
Placer
Plumas
Pacific
Pend Oreille
Peñuelas
Ponce
Patillas
Poquoson
Portsmouth
Petersburg
Prince of Wales-Hyder

ZIP Codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP is an acronym for Zone Improvement Plan; it was chosen to suggest that the mail travels more efficiently and quickly (zipping along) when senders use the code in the postal address. The basic format consists of five digits. An extended 'ZIP+4' code was introduced in 1983 which includes the five digits of the ZIP Code, followed by a hyphen and four additional digits that determine a more specific location.--Wikipedia