- Post Office - Carlisle KYThe historic post office in Carlisle, Kentucky was constructed in 1941 with federal Treasury Department funds. The building is still in service.
- Post Office - Carlyle ILThe historic post office in Carlyle was completed in 1941 with funds provided by the Treasury Department. It is also the site of Curt Drewes's three bas relief sculptures--"Dairy Farming," "Farm," and "Fish Hatchery," completed with funds provided by the Treasury Section of Fine Arts and viewable in the lobby.
- Post Office - Carmi ILThe Carmi post office was constructed by the Treasury Department in 1938.
- Post Office - Caro MIThe historic Caro, Michigan post office was a New Deal project completed with federal Treasury Department funds in 1939. The building contains a Section of Fine Arts tempera mural entitled "Mail on the Farm," painted by David Fredenthal in 1941.
- Post Office - Carrollton ALThe historic Carrollton post office and Federal Building was constructed in 1940 with federal Treasury Department funds, as per the building's cornerstone. The building still houses the post office today, as well as an example of New Deal artwork.
- Post Office - Carthage ILConstructed by the US Treasury in 1934.
- Post Office - Carthage MSThe historic post office in Carthage, Mississippi was built in 1939-40 with Treasury Department funds. The stately building, which houses an example of New Deal artwork, is still in service.
- Post Office - Cassville MOThe Cassville post office was constructed in 1938 with funds provided by the Treasury Department. It is also the site of Edward Winter's 1941 mural, "Flora and Fauna of the Region," painted for the Treasury Section of Fine Arts.
- Post Office - Catasauqua PAThe historic post office in Catasauqua, Pennsylvania was constructed in 1936 with federal Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service today.
- Post Office - Catonsville MDThe historic post office in Catonsville, Maryland was constructed in 1940. The building, which houses an example of New Deal artwork, is still in use.
- Post Office - Catskill NYThe historic post office building at 319 Main Street in Catskill, New York was constructed as a New Deal project with Treasury Department funds. The Art Deco building features a distinctive staircase / ADA handicap ramp construction out front. Another modern addition is a pair of murals in the customer lobby, reminiscent of those which were created under the New Deal.
- Post Office - Celina OHThe historic post office in Celina, Ohio was constructed in 1934-5 with federal Treasury Department funds. The building is still in service.
- Post Office - Centralia WAThe post office in Centralia was constructed by the Treasury Department in 1937.
- Post Office - Charleston MOThe historic post office in Charleston, Missouri was constructed in 1937 with federal Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service.
- Post Office - Charleston MSThe historic post office in Charleston, Mississippi was constructed in 1938-9 with federal Treasury Department funds. The gorgeous building continues to serve its original function.
- Post Office - Charlotte Amalie, St. Thomas VIThe historic Emancipation Gardens post office, a.k.a. Alvardo de Lugo Post Office, in Charlotte Amalie on St. Thomas was constructed in 1937-8 with Treasury Department funds. The building, which houses the only two examples of New Deal federal building artwork in the U.S. Virgin Islands, is still in service. Dept. of the Interior, 1938: "The Treasury Procurement Division has, during the year, completed the Federal Building at Charlotte Amalie, which houses the post office, the customs department, and the United States Public Health Service. This handsome structure which is located on a commanding site in Charlotte Amalie has won universal praise." The...
- Post Office - Chatham VAThe historic post office in Chatham, Virginia was constructed in 1936 with Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service.
- Post Office - Chester ILBuilt by the Treasury Department in 1938.
- Post Office - Chester PAThe grand and historic post office in Chester, Pennsylvania was built in 1936-7 with Treasury Department funds. It was designed by Henry D. Dagit and Sons, with The Ballinger Company as associate architects. Dedication took place on August 28, 1937. The building, which houses an example of New Deal artwork, is still in service.
- Post Office - Chesterfield SCThe historic post office in Chesterfield, South Carolina was built in 1937-8 with Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service. "A one-story, T-shaped brick building, designed by Louis Simon, government architect, and built in 1937. The building features brick laid in English bond. Simon designed Federal post offices across the nation." (NRHP Inventory Form)
- Post Office - Chestnut Hill MAThis post office in the Boston area opened in 1940.
- Post Office - Chicopee Falls MAThe historic post office building located at 28 Main St. in Chicopee, Massachusetts was constructed by the federal Treasury Department in 1936. Located in the village of Chicopee Falls, this was one of two post office buildings from the era constructed in the town of Chicopee.
- Post Office - Chillicothe ILConstructed by the Treasury Department in 1940.
- Post Office - Chilton WIConstructed by the Treasury in 1940.
- Post Office - Chisholm MNThe historic post office in Chisholm, Minnesota was built in 1939-40 with Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service.
- Post Office - Christiansburg VANow known as the Downtown Station post office, what had been the main post office in Christiansburg, Virginia is located at the town's main intersection. It was completed in 1936 and built from funds allocated to the U.S. Treasury Department. In the mid-2000s it was targeted for closure by the federal government; however, effort by local, state and congressional leaders derailed that effort and the building remains open today. The successful effort to maintain the building was in part a function of its designation as a Virginia Historical Landmark. The exterior and interior plan of the building is very similar...
- Post Office - Circleville OHThe historic post office in Circleville, Ohio was constructed in 1934-5 with federal Treasury Department funds. The building is still in service.
- Post Office - Clairton PAThe gorgeous Art Deco post office in Clairton, Pennsylvania was constructed in 1935 with Treasury Department funds. The historic building is still in service.
- Post Office - Clare MIThe historic post office in Clare, Michigan was constructed in 1937 with federal Treasury Department funds. The building, which houses an example of New Deal artwork inside, is still in use today.
- Post Office - Claremont CAThe post office in Claremont, CA, was constructed by the federal Treasury Department between 1935 and 1936. The design is Spanish (or Mexican) Revival, which was very popular in Southern California at the time. Still in use today, the post office houses a New Deal mural by Milford Zornes (see linked project).
- Post Office - Clarion IAThe historic post office in Clarion, Iowa was built in 1939-40 with Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service.
- Post Office - Clarion PAThe attractive Art Deco post office in Clarion, Pennsylvania was constructed with Treasury Department funds and completed in 1936. The historic building is still in service. Unfortunately, the date on the cornerstone has been obscured / obliterated by a callously implemented ADA ramp.
- Post Office - Clarks Summit PAThe historic post office in Clarks Summit, Pennsylvania was constructed with Treasury Department funds. The building, which opened in 1936, houses an example of New Deal artwork. Unfortunately the building's cornerstone can no longer be photographed, as it has been obstructed by a callously implemented ADA ramp.
- Post Office - Clarkston WAConstructed by the US Treasury in 1941.
- Post Office - Clarksville ARThe historic post office in Clarksville, Arkansas was constructed in 1935 with Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service.
- Post Office - Clifton TXThe historic Clifton, Texas post office was constructed with federal Treasury Department funds in 1940. The building is still in service.
- Post Office - Clinton CTThe historic post office in Clinton, Connecticut was constructed with federal Treasury Department funds in 1936-7. The building, which houses an example of New Deal artwork inside, is still in use today.
- Post Office - Clinton ILConstructed in 1937 by the Treasury Department.
- Post Office - Clinton MOThe historic post office in Clinton, Missouri was constructed in 1940 with federal Treasury Department funds. The building, which houses an example of New Deal artwork, is still in service.
- Post Office - Clintonville WIThe Clintonville, Wisconsin post office was constructed with federal funds. The building, which opened for business in 1936, is still in use today.