United States post offices operate under the authority of the United States Post Office Department (1792–1971) or the United States Postal Service (since 1971). Historically, post offices were usually placed in a prominent location. Many were architecturally distinctive, including notable buildings featuring Beaux-Arts, Art Deco, and Vernacular architecture. However, modern U.S. post offices were generally designed for functionality rather than architectural style.

Following is a list of United States post offices in Mississippi. Notable post offices include individual buildings, whether still in service or not, which have architectural, historical, or community-related significance. Many of these are listed on the National Register of Historic Places (NRHP) or state and local historic registers. There is also a NRHP thematic listing, "Mississippi Post Offices 1931-1941 TR".

Post officeCityDate builtImageArchitectNotesUnited States Courthouse and Post Office (Aberdeen, Mississippi)Aberdeen1885William Alfred Freret and Mifflin E. Bell with United States Post Office-AmoryAmory1939Louis A. SimonBaughn, Jennifer V.O. and Fazio, Michael W. Fazio and Miller, Mary Warren. "U.S. Post Office [Amory, Mississippi]". SAH Archipedia. Accessed February 15, 2026.United States Post Office (Batesville, Mississippi)Batesville1940Louis A. Simon, Neal A. MelickUnited States Post Office (Bay St. Louis, Mississippi)Bay St. Louis1935–1936Louis A. SimonUnited States Post Office (Belzoni, Mississippi)Belzoni1937–1938Louis A. SimonUnited States Post Office, Courthouse, and Customhouse, now Biloxi City HallBiloxi1908James Knox Taylor with United States Post Office (Booneville, Mississippi), now Chancery Clerk's OfficeBooneville1939Leroy BartonUnited States Post Office (Brookhaven, Mississippi)Brookhaven1912James Knox Taylor, Louis A. SimonBaughn, Jennifer V.O. and Fazio, Michael W. and Miller, Mary Warren . "U.S. Post Office [Brookhaven, Mississippi]". SAH Archipedia. Accessed February 15, 2026.United States Post Office (Carthage, Mississippi)Carthage1939Shelby Olvy YarboroughUnited States Post Office (Charleston, Mississippi)Charleston1938–1939Louis A. SimonUnited States Post Office (Cleveland, Mississippi), now the Cleveland Police DepartmentCleveland1933–1934James A. Wetmore, Louis A. SimonUnited States Post Office (Columbia, Mississippi)Columbia1931Shourds & BeanUnited States Post Office (Columbus, Mississippi), now Downtown Station Post OfficeColumbus1939R. Stanley Brown, Murphy PoundOld United States Post Office (Corinth, Mississippi)Corinth1913James Knox TaylorUnited States Post Office (Crystal Springs, Mississippi)Crystal Springs1940–1941Louis A. SimonUnited States Post Office (Durant, Mississippi)Durant1939–1940Louis A. SimonUnited States Post Office (Eupora, Mississippi)Eupora1940–1941Louis A. SimonUnited States Post Office (Forest, Mississippi)Forest1938–1939Louis A. SimonOld United States Post Office (Greenwood, Mississippi), now Greenwood Public Schools Administration BuildingGreenwood1911–1914James Knox Taylor, Oscar WenderothOld United States Post Office (Grenada, Mississippi)Grenada1914–1915Oscar WenderothBaugh, JenniV.O., V.O., and Fazio, Michael W. and Miller, Mary Warren. "Historic U.S. Post Office, [Grenada, Mississippi]" SAH Archipedia. Accessed February 15, 2026.United States Post Office and Customhouse (Gulfport, Mississippi)Gulfport1910James Knox TaylorUnited States Post Office (Hattiesburg, Mississippi)Hattiesburg1934Juan G. Landry, Rathbone DeBuys Baughn, Jennifer V.O. and Fazio, Michael W. and Miller, Mary Warren. "U.S. Post Office [Hattiesburg, Mississippi]". SAH Archipedia. Accessed February 15, 2026.United States Post Office (Hazlehurst, Mississippi)Hazlehurst1938Louis A. Simon, Neal A. MelickUnited States Post Office (Houston, Mississippi)Houston1939Louis A. Simon, Neal A. MelickUnited States Post Office (Indianola, Mississippi)Indianola1935Louis A. Simon, Neal A. MelickUnited States Courthouse and Post Office, Jackson, MississippiJackson1884–1885, 1900Mifflin E. Bell, James Knox TaylorUnited States Post Office and Courthouse, now James O. Eastland Federal CourthouseJackson1933–1934James A. Wetmore, Hull & MalvaneyOld U.S. Post Office (Kosciusko, Mississippi), now Kosciusko City HallKosciusko1932James A. WetmoreUnited States Post Office (Leland, Mississippi)Leland1938Louis A. Simon, Neal A. MelickUnited States Post Office (Lexington, Mississippi)Lexington1937Louis A. SimonUnited States Post Office (Louisville, Mississippi)Louisville 1935Louis A. SimonUnited States Post Office (Lumberton, Mississippi)Lumberton1932Algernon Blair-MontgomeryUnited States Post Office (Macon, Mississippi)Macon1941Louis A. SimonUnited States Post Office (Magnolia, Mississippi)Magnolia1936–1937Louis A. Simon, Neal A. MelickOld United States Post Office (McComb, Mississippi), later McComb Public LibraryMcComb1917–1918James A. WetmoreUnited States Post Office and Courthouse (Meridian, Mississippi)Meridan1931–1933P. J. Krouse and Frank Fort, James A. WetmoreOld U.S. Post Office (Natchez, Mississippi), now Natchez Museum of African American History and CultureNatchez1905James Knox TaylorUnited States Post Office (New Albany, Mississippi), now Union County Development Association BuildingNew Albany1936Louis A. Simon, Neal A. MelickUnited States Post Office (Newton, Mississippi)Newton1936Louis A. Simon, Neal A. MelickUnited States Post Office (Okolona, Mississippi)Okolona1937Louis A. Simon, Neal A. MelickUnited States Post Office and Federal Building, now Oxford City HallOxford1883–1886Mifflin E. BellOld United States Post Office (Philadelphia, Mississippi), now Philadelphia Police DepartmentPhiladelphia1933–1935Louis A. Simon, Neal A. MelickUnited States Post Office (Picayune, Mississippi)Picayune1937–1937Louis A. SimonUnited States Post Office (Pontoto, Mississippi)Pontotoc 1933Louis A. SimonUnited States Post Office (Poplarville, Mississippi)Poplarville1941Louis A. SimonOld U.S. Post Office (Ripley, Mississippi)Ripley1938Louis A. SimonUnited States Post Office (Starkville, Mississippi)Starkville1935Louis A. SimonUnited States Post Office (Tylertown, Mississippi)Tylertown1940Louis A. Simon, Neal A. MelickUnited States Post Office (Waynesboro, Mississippi)Waynesboro1939Louis A. SimonUnited States Post Office (Water Valley, Mississippi)Water Valley1925James A. WetmoreOld United States Post Office (West Point, Mississippi), now West Point Water and Light West Point1910James Knox TaylorUnited States Post Office (Winona, Mississippi)Winona1932James A. Wetmore

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