Windham Town Hall

The Willimantic Post Office is a former post office located in Willimantic, Connecticut. The post office was built between 1910 and 1912, and was used until 1966; when a new post office was built a block away. The Willimantic Brewing Company purchased the building in 1997 and converted it into a pub.

Willimantic is a former intercity rail station located in Willimantic, Connecticut. Amtrak service to Willimantic began in 1991 with the Montrealer; it was closed in 1995 when the service was replaced by the Vermonter and no longer ran through Willimantic. The station consisted of an illuminated concrete platform alongside a parking lot (the platform remains intact as of 2024). The former station site is about one mile east of the Connecticut Eastern Railroad Museum, which was established the in 1995, the same year the station closed. Amtrak schedules would refer to the stop as "Willimantic, CT (Storrs)", since this was the closest railroad station to the University of Connecticut Storrs Campus (located approximately 7 miles north of Willimantic).

The Main Street Historic District encompasses the historic portion of the central business district of Willimantic, in Windham, Connecticut. The district encompasses the commercial business district of Willimantic and is roughly linear along Main Street (Route 66) and Riverside Drive between Church Street and Bridge Street. It was first listed on the National Register of Historic Places in 1982. Its area was increased in 1992 to include the Hall and Bill building on North Street, built in 1889 by one of Willimantic's leading printers.

The Willimantic Freight House and Office is a historic railroad freight facility on Bridge Street in the Willimantic section of Windham, Connecticut. Built in 1870, the freight office, a fine example of Second Empire architecture, is now the only surviving element of the city's 19th-century railroad buildings; the freight house has been demolished. The buildings were listed on the National Register of Historic Places in 1982 as an important reminder of the city's importance as a major railroad junction in eastern Connecticut.

Willimantic is a census-designated place located in Windham, Connecticut. Previously organized as a city and later as a borough, Willimantic is currently one of two tax districts within the Town of Windham. Willimantic is located within Windham County and the Southeastern Connecticut Planning Region. Known as "Thread City" for the American Thread Company's mills along the Willimantic River, it was a center of the textile industry in the 19th century. Originally incorporated as a city in 1893, it entered a period of decline after the Second World War, culminating in the mill's closure and the city's reabsorption into the town of Windham in the 1980s. Willimantic was populated by a series of ethnic groups migrating to the city to find work at the mills, originally Western European and French Canadian immigrants, later Eastern Europeans and Puerto Ricans. Architecturally, it is known for its collection of Victorian-era houses and other buildings in the hill section, the Romanesque Revival town hall and several crossings of the Willimantic River, including the Willimantic Footbridge and the "Frog Bridge". It is home to Eastern Connecticut State University and the Windham Textile and History Museum. As of 2020, Willimantic had a population of 18,149 people.

Willimantic Armory is a historic armory building on Pleasant Street in Windham, Connecticut. It served the Connecticut National Guard from 1913 until 1980 when the building was sold to developers who converted the building into apartments.

The Willimantic Footbridge is a pedestrian bridge in the Willimantic section of Windham, Connecticut. Built in 1906, it extends from Main Street southward, across Riverside Drive, railroad tracks, and the Willimantic River, connecting downtown Willimantic to the residential area south of the river. It is one of a small number of pedestrian bridges built in the early 20th century to survive in the state. It was listed on the National Register of Historic Places in 1979.

The Willimantic Elks Club is a historic Elks lodge at 198 Pleasant Street in the Willimantic section of Windham, Connecticut. Built in 1925 for a lodge founded in 1914, it is one of the finest examples of Tudor Revival architecture in the region, and has been a major site of social events in the community since. The building was added to the National Register of Historic Places in 2005.

Eastern Connecticut State University (Eastern, Eastern Connecticut, Eastern Connecticut State, or ECSU) is a public university in Willimantic, Connecticut. Founded in 1889, it is the second-oldest campus in the Connecticut State University System and third-oldest public university in the state. Eastern is located on Windham Street in Willimantic, Connecticut, on 182 acres (0.74 km2) 30 minutes from Hartford, lying midway between New York City and Boston. Although the majority of courses are held on the main campus, select classes take place at Manchester Community College, Capital Community College, and a satellite center in Groton. Eastern Connecticut State University is a member of the Connecticut State Colleges & Universities.

The Summer Institute for Future Teachers, SIFT is a residential summer program at Eastern Connecticut State University. This program is for students who are interested in exploring the teaching profession and who are going into either their junior or senior years of high schools from all over Connecticut. This program has been running since 1996. The program usually starts in the first week of July and ends in the third week of July.

The William Jillson Stone House is a historic house museum at 561 Main Street inside Jillson Square Park, in the Willimantic section of Windham, Connecticut. Built in 1825–27, it is a rare local instance of a stone house, built by one of the area's early industrialists. It is now maintained by the Windham Historical Society, and was listed on the National Register of Historic Places in 1971.

Windham Technical High School, or Windham Tech, is a technical high school located in Willimantic, Connecticut. It is part of the Connecticut Technical Education and Career System. In 2021-22, Windham Tech had an enrollment of 500, with boys outnumbering girls by a ratio of nearly 2:1 (326 boys and 174 girls, as of the 2021-22 school year).