List of United States post offices in Iowa

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 Iowa. 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.

Post officeCityDate builtImageArchitectNotesUnited States Post Office (Algona, Iowa)Algona1936John Winthrop Wolcott Jr.United States Post Office (Ames, Iowa)Ames1935United States Post Office (Anamosa, Iowa)Anamosa 1940Louis A. SimonUnited States Post Office (Audubon, Iowa)Audubon1940–1941United States Post Office (Bloomfield, Iowa)Bloomfield1937–1938Cedar Rapids Post Office and Public BuildingCedar Rapids1908Taylor McAlpin, James Knox TaylorUnited States Post Office (Centerville, Iowa)Centerville1904James Knox TaylorUnited States Post Office (Clarion, Iowa)Clarion1939–1940United States Post Office (Clinton, Iowa)Clinton1902United States Post Office (Columbus Junction, Iowa)Columbus Junction1940–1941United States Post Office (Corning, Iowa)Corning1938Louis A. SimonGebhard, David and Mansheim, Gerald. "United States Post Office Building, [Corning, Iowa]". SAH Archipedia. Accessed February 19, 2026.United States Post Office (Corydon, Iowa)Corydon1940United States Post Office (Cresco, Iowa)Cresco 1935Louis A. Simon, Neal A. MelickGebhard, David and Mansheim, Gerald. "United States Post Office Building, [Cresco, Iowa]". SAH Archipedia. Accessed February 19, 2026.United States Post Office (Creston, Iowa)Creston1901James Knox TaylorUnited States Post Office and Court House, now the United States Courthouse (Davenport)Davenport1933Seth J. TempleUnited States Post Office (Des Moines, Iowa)Des Moines1909–1910James Knox TaylorOld Post Office, now DeWitt City Hall DeWitt1936United States Post Office (Eldora, Iowa)Eldora1939United States Post Office (Emmetsburg, Iowa)Emmetsburg1938–1939Former United States Post Office Building (Fairfield, Iowa)Fairfield1876unknownUnited States Post Office (Forest City, Iowa)Forest City1940–1941Louis A. Simon, Neal A. MelickGebhard, David and Mansheim, Gerald. "United States Post Office Building [Forest City, Iowa]". SAH Archipedia. Accessed February 19, 2026.United States Post Office (Hamburg, Iowa)Hamburg1937–1938United States Post Office (Hampton, Iowa)Hampton1934–1935United States Post Office (Harlan, Iowa)Harlan1935United States Post Office (Hawarden, Iowa)Hawarden1940–1941United States Post Office (Ida Grove, Iowa)Ida Grove1938–1939United States Post Office (Independence, Iowa)Independence1934–1935Old Post Office (Iowa City, Iowa)Iowa City1904unknown with United States Post Office (Iowa Falls, Iowa)Iowa Falls1914Oscar WenderothUnited States Post Office (Jefferson, Iowa)Jefferson1936–1937United States Post Office and Courthouse, now Lee County Courthouse (Keokuk, Iowa)Keotuk1887Mifflin E. Bell with United States Post Office (Knoxville, Iowa)Knoxville 1939–1940United States Post Office (Leon, Iowa)Leon1936–1937United States Post Office (Manchester, Iowa)Manchester1936–1937United States Post Office, later Marion City Hall Marion1937United States Post Office (Missouri Valley, Iowa)Missouri Valley1936–1937United States Post Office (Monticello, Iowa)Monticello1939United States Post Office (Mount Ayr, Iowa)Mount Ayr1939–1940United States Post Office (Mount Pleasant, Iowa)Mount Pleasant1935–1936Wyatt C. HedrickGebhard, David and Mansheim, Gerald. "United States Post Office Building [Mt Pleasant, Iowa]'. SAH Archipedia. Accessed February 19, 2026.United States Post Office (Nevada, Iowa)Nevada1937–1938United States Post Office (New Hampton, Iowa)New Hampton1937–1938United States Post Office (Onawa, Iowa)Onawa1936–1937United States Post Office (Osage, Iowa)Osage1934–1935United States Post Office (Osceola, Iowa)Osceola1935–1936United States Post Office (Ottumwa, Iowa), now Ottumwa City HallOttumwa1910–1912James Knox Taylor with .United States Post Office (Pella, Iowa)Pella1936–1937United States Post Office (Rock Rapids, Iowa)Rock Rapids1937–1938United States Post Office (Rockwell City, Iowa)Rockwell CityLouis A. Simon, Neal A. MelickUnited States Post Office (Sac City, Iowa)Sac City1935–1936United States Post Office (Sigourney, Iowa)Sigourney1937–1938Kegler Gonner Store and Post OfficeSpringbrook1874unknown with United States Post Office (Tipton, Iowa)Tipton1937–1938Louis A. SimonOld Post Office and U.S. Courthouse, now Waterloo Public Library-East Side BranchWaterloo1905John G. RalstonUnited States Post Office (Waukon, Iowa)Waukon 1938United States Post Office (Waverly, Iowa)Waverly1936–1937Webster City Post OfficeWebster City1909James Knox Taylor with United States Post Office (West Union, Iowa)West Union1939–1940United States Post Office (Winterset, Iowa)Winterset1934–1935

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