Plymouth Downtown Historic District

Plymouth Fire Station is a historic fire station located at Plymouth, Marshall County, Indiana. It was built in 1875, and is a two-story, painted brick building with a 59-foot tall bell tower. It features round-arched pedestrian entrances and bays, parapet with tile coping, and a round window in the bell tower.: 2 It was listed on the National Register of Historic Places in 1981. It is located in the Plymouth Downtown Historic District.

Marshall County Courthouse is a historic courthouse located at Plymouth, Marshall County, Indiana. It was built between 1870 and 1872, and is a two-story, brick and limestone building in a combination of Italianate and Renaissance Revival styles. It is rectangular in form and has a hipped roof with central bell tower.: 2 It was listed in the National Register of Historic Places in 1983. It is located in the Plymouth Northside Historic District.

Plymouth is a city in Marshall County, Indiana, United States. The population is 10,214 in the 2020 census. It is the county seat of Marshall County. Plymouth was the site of the first retail outlet of defunct U.S. retailer Montgomery Ward in 1926.

Plymouth Southside Historic District is a national historic district located at Plymouth, Marshall County, Indiana. The district encompasses 91 contributing buildings, 2 contributing structures, and 1 contributing object in a predominantly residential section of Plymouth. It developed between about 1853 and 1953, and includes examples of Italianate, Greek Revival, Queen Anne, Colonial Revival, and Tudor Revival style architecture. Notable contributing resources include the John McFarlin, Jr., House (c. 1860), Trinity United Methodist Church (1926), Bible Baptist Church (1894), Felke Florist and Greenhouse (1922), John Soice Residence (c. 1875), Westervelt-Marble Residence (c. 1865, 1899), and Edwards-Gambel Residence (1856).It was listed on the National Register of Historic Places in 2013.

Plymouth Northside Historic District is a national historic district located at Plymouth, Marshall County, Indiana. The district encompasses 141 contributing buildings, 2 contributing sites, 6 contributing structures, and 3 contributing objects in a predominantly residential section of Plymouth. It developed between about 1870 and 1940, and includes examples of Italianate, Gothic Revival, Queen Anne, Colonial Revival, Tudor Revival, Neoclassical, and Renaissance Revival style architecture. Located in the district is the separately listed Marshall County Courthouse. Other notable contributing resources include Magnetic Park (c. 1885, 1937), First United Methodist Church (1914-1915), J.C. Capron House (1900), Samuel Schlosser House (1910-1911), Clay Metsker House (1917-1918), Plymouth Church of the Brethren (1950-1951), Logan-Stanley Fountain (c. 1902), Stevens House (1895), and First Presbyterian Church (1896-1897).It was listed on the National Register of Historic Places in 2013.

East LaPorte Street Footbridge is a historic footbridge located at Plymouth, Marshall County, Indiana. It was built in 1898 by the Rochester Bridge Company and spans the Yellow River. It is a two-span, Kingpost truss bridge measuring 100 feet long and 6 feet wide. The bridge connects a residential area of Plymouth to River Park Square and downtown.: 2 It was listed on the National Register of Historic Places in 1981.

Plymouth High School is a public high school located in Plymouth, Indiana, United States.

Heminger Travel Lodge is a historic hotel located on the Lincoln Highway at Plymouth, Marshall County, Indiana. It was built in 1937, and is a two-story, Colonial Revival style brown brick building with a red clay tile gable roof. Attached to the building is a one-story "sun porch" with a hipped roof.: 5 It was listed on the National Register of Historic Places in 2000.

The Hoham-Klinghammer-Weckerle House and Brewery Site, located in Plymouth, Marshall County, Indiana is connected to three German families, all related through marriage, that settled in the area in 1844–1865. The Hoham, Klinghammer, and Weckerle families established and operated the Plymouth Brewery from 1857 to 1888. Among several buildings that existed at brewery site was a Stick/Queen Anne style house, now the only remaining building at the site.The exact date and builder of the house is not known, construction started prior to 1882, probably by the Klinghammers. The largely brick house has two full floors and a half story top floor. A partially exposed full basement adds to the overall height of the house. Two brick vaults are buried fifty feet west of the house and were a part of the original brewery building.

Plymouth Municipal Airport (IATA: PLY, FAA LID: C65) is a public use airport located two nautical miles (4 km) north of the central business district of Plymouth, a city in Marshall County, Indiana, United States. It is owned by the Plymouth Board of Aviation of Commissioners. This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility.

Marshall County Infirmary, also known as the Shady Rest Home, is a historic poor farm complex located in Center Township, Marshall County, Indiana. The complex includes three buildings constructed between 1893 and 1920. The Superintendent's Quarters was built in 1895, and is a two-story, Romanesque Revival style brick structure over a full basement. It has a two-story, rear wing that may have been constructed as early as 1893. The house features a corner tower with conical roof and round arched windows. Also on the property are the contributing well house (c. 1920) and large four portal basement barn (1893).: 5, 7, 9 It was listed on the National Register of Historic Places in 2000.

Center Township is one of ten townships in Marshall County, Indiana, United States. As of the 2010 census, its population was 15,593 and it contained 6,491 housing units.Center Township was established in 1836.