- Post Office - Pauls Valley OKThe historic post office in Pauls Valley, Oklahoma was constructed with federal Treasury Department funds. The building was completed in 1936 and is still in use today.
- Post Office - Paulsboro NJThe Paulsboro Post Office was built in 1939 with Treasury Department funds.
- Post Office - Paw Paw MIThe historic post office in Paw Paw, Michigan was constructed in 1939-40 with federal Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service.
- Post Office - Pawhuska OKThe historic post office in Pawhuska, Oklahoma was constructed with federal Treasury Department funds. The building, which houses New Deal artwork inside, was completed in 1937 and is still in use today.
- Post Office - Pawnee City NEThe historic post office in Pawnee City, Nebraska was constructed in 1940 with federal Treasury Department funds. The building, which houses New Deal artwork inside, is still in service.
- Post Office - Payette IDThe historic post office in Payette, Idaho was constructed in 1937 with Treasury Department funds. The building is still in service.
- Post Office - Pearl River NYThe historic post office in Pearl River, New York was constructed with federal Treasury Department funds. The building, which was constructed from 1935 to 1936, is still in service.
- Post Office - Pecos TXThe historic U.S. Post Office and Court House in Pecos, Texas bears a 1935 cornerstone and was constructed with federal Treasury Department funds. The building, which was completed in 1936, is still in service as a post office.
- Post Office - Pelham GAThe historic post office in Pelham, Georgia was constructed ca. 1940.
- Post Office - Pella IAThe post office in Pella was completed in 1937 with funds provided by the Treasury Department. It is also the site of Byron Ben Boyd's 1938 mural, "Hollanders Settle in Pella," completed with funds provided by the Treasury Section of Fine Arts and viewable in the lobby. "Over 1,000 residents in the Marion County town of Pella toured the post office on its opening day, April 26, 1937. The Pella Chronicle wrote the $55,000 post office 'fills a long-felt need and it will now be possible to give even better service than before.' The article highlights the spacious lobby, efficient workspace,...
- Post Office - Pendleton INConstructed by the Treasury Department in 1936 under the supervision of Supervising Architect Louis A. Simon and Supervising Engineer Neal A. Melick.
- Post Office - Penns Grove NJThe historic Penns Grove post office was constructed in 1940 with Treasury Department funds.
- Post Office - Perry OKThe historic post office building in Perry, Oklahoma was constructed with federal Treasury Department funds. The building, which was completed in 1939, is still in use today. A New Deal mural that had been housed in the post office lobby has since been relocated to a nearby museum.
- Post Office - Perth Amboy NJThe historic post office in Perth Amboy, New Jersey was constructed with federal Treasury Department funds in 1937. The building is still in use today.
- Post Office - Peterborough NHBuilt in 1936.
- Post Office - Petersburg VAThe historic post office building in Petersburg, Virginia, was constructed by the Treasury Department in 1935. The building is still in use today.
- Post Office - Phillipsburg NJThe historic and distinctive post office building in Phillipsburg, New Jersey was constructed in 1933 with Treasury Department funds. It is still in service.
- Post Office - Picayune MSThe Colonial Revival style post office was built in 1937-8. It contains a mural, "Lumber Region of Mississippi" by Donald H. Robertson.
- Post Office - Piedmont ALThe historic post office in Piedmont, Alabama was constructed in 1940 with federal Treasury Department funds. The building is still in service today.
- Post Office - Piggott ARThe historic post office in Piggott, Arkansas was constructed in 1937-8 with funds provided by the Treasury Department. Louis A. Simon served as the supervising architect and Neal A. Melick was supervising engineer. The building also houses an example of New Deal artwork: a mural entitled "Air Mail," in the lobby. The mural was featured on a sheet of U.S. postage stamps: "Post Office Murals." The First-Day ceremony for the stamps was held in front of the Piggott post office on April 10, 2019.
- Post Office - Pineville KYThe post office in Pineville was completed in 1935 with funds provided by the Treasury Department. It is also the site of Edward Fern's 1942 mural, "Kentucky Mountain Mail En Route," completed with funds provided by the Treasury Section of Fine Arts.
- Post Office - Pipestone MNThe historic post office building in Pipestone, Minnesota was constructed with federal Treasury Department in 1935. The building is still in service.
- Post Office - Pitman NJThe historic post office building in Pitman, New Jersey was completed in 1937 with Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service.
- Post Office - Pittsfield ILThe historic post office in Pittsfield, Illinois was constructed with Treasury Department funds in 1935.
- Post Office - Plainville CTThe historic post office building in Plainville, Connecticut was constructed in 1934 with federal Treasury Department funds. The building is still in use today.
- Post Office - Pleasant Hill MOThe post office in Pleasant Hill was constructed with funds provided by the Treasury Department in 1937.
- Post Office - Plymouth NHThe historic post office in Plymouth, New Hampshire was constructed in 1937 with federal Treasury Department funds. The building, which houses an example of New Deal artwork, is still in use today.
- Post Office - Plymouth PAThe post office in Plymouth, Pennsylvania was constructed with federal Treasury Department funds in 1935. The building is still in use today. A 1938 Section of Fine Arts-funded mural titled "Meal Time with the Early Coal Miners" was painted by Jared French and hangs in the lobby.
- Post Office - Plymouth WIConstructed by the Treasury Department in 1940.
- Post Office - Pocomoke City MDThe U.S. Post Office building in Pocomoke City, Maryland, is a U.S. Treasury project from 1937. It is one of the many hundreds of post offices built during the New Deal era that still serve Americans today.
- Post Office - Pomeroy OHThe historic post office in Pomeroy, Ohio was constructed with federal Treasury Department funds in 1939. The building, which houses an example of new Deal artwork, is still in service.
- Post Office - Pompton Lakes NJThe historic post office in Pompton Lakes, New Jersey was constructed in 1937 with Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service.
- Post Office - Pontotoc MS"The post office is built in the Georgian /Colonial Revival style and has central double-leaf aluminum and glass doors surrounded by a stone architrave with dentil molding in the cornice, a stone water table and cornice with dentil molding, brick quoins at corners, and granite steps" (Sanders & Cawthon, 1993).
- Post Office - Poplarville MSThe historic post office building in Poplarville, Mississippi was constructed with federal Treasury Department funds during the Great Depression. Completed in 1941, it is still in use today. "This building has an unusual plan and appearance for a post office of its period: it is a narrow-fronted, two-story, hip-roofed brick building in a simplified Colonial Revival Style" (MDAH).
- Post Office - Port Clinton OHThe historic post office in Port Clinton, Ohio was constructed in 1935 with federal Treasury Department funds. The building is still in service.
- Post Office - Port Washington NYThe historic New Deal post office in Port Washington was built in 1934-5 with joint support from the federal Treasury Department and the Public Works Administration (PWA). A 1933 article in the Suffolk County News described the PWA allotments for this and other nearby post offices: "Actual allotments for post office buildings in Nassau and Suffolk Counties, amounting to $502,430, have been made by the Federal Emergency Administration of Public Works. This sum will provide three new post office buildings in Suffolk and four in Nassau, as follows: Suffolk—Bay Shore, $71,270; East Hampton, $73,400; Riverhead, $81,000. Nassau—Floral Park, $67,760; Garden City,...
- Post Office - Port Washington WIThe historic post office building in Port Washington, Wisconsin was constructed ca. 1938 with federal Treasury Department funds. The building is still in service.
- Post Office - Portales NMThe historic post office in Portales, New Mexico was built during the Great Depression as a federal Public Works Administration (PWA) project, in 1936-7. Construction of the building is sometimes mis-attributed to the WPA. The post office, which houses an example of New Deal artwork, is still in service. It is listed on the National Register of Historic Places.
- Post Office - Portland CTThe historic post office building in Portland, Connecticut was constructed using federal Treasury Department funds. A Section of Fine Arts mural hangs in the lobby. The building, which was completed in 1942, is still in use today.
- Post Office - Portsmouth OHThe historic and striking New Deal post office in Portsmouth, Ohio was constructed in 1936 with federal Treasury Department funds. The building, which is still in use, houses multiple examples of New Deal artwork.