Shortly after the Nazi seizure of power, Großflecken was renamed to Adolf-Hitler-Platz (English: Adolf Hitler Place).

[9] During World War 2, Neumünster was bombed multiple times by Allied forces in 1945, partly because of its importance as a railway junction and industrial city.

However, the industry eventually left the city due to competition from overseas and Neumünster's last cloth factory closed in the beginning of the 1990s.

[14] In 2012, McArthurGlen Group opened a designer outlet shopping center in the industrial section of the city, using approximately 15,000 square meters.

[15] The city is divided into nine neighborhoods: Böcklersiedlung-Bugenhagen, Brachenfeld-Rutenberg, Einfeld, Faldera, Gadeland, Gartenstadt, Stadtmitte, Tungendorf and Wittorf.

The University of Applied Sciences Kiel offers a bachelor's degree in nursing at its Neumünster site.

The Museum Tuch + Technik shows the history of the cloth-making craft from the Iron Age to the present day as well as of the city of Neumünster.

The three-story brick building was built around 1900.The Tierpark Neumünster houses about 700 animals from a total of 100 species of mammals, birds and reptiles on a wooded area of 24 hectares.

The nature reserve on the western shore of Einfelder See protects the near-natural shoreline landscape with siltation zones and the open water areas in front of them.

The stadium once hosted motorcycle speedway and Team 70 Neumünster (founded in 1970) were the first champions of West Germany in 1973.