It is at the junction of lines to Flensburg, Heide, Hamburg-Altona, Kiel, Bad Oldesloe, Kaltenkirchen and until 1985 Ascheberg.

Soon, more lines were added: in 1845 the route to Rendsburg was opened by the Rendsburg-Neumünster Railway Company (Rendsburg-Neumünstersche Eisenbahn).

Finally in 1877 the line to and from Heide was opened by the West Holstein Railway Company (Westholsteinische Eisenbahn-Gesellschaft).

The AKN Railway reached Neumünster in 1916, but at first its trains terminated in Neumünster-Süd station.

More recent modernisation includes provision of automatic ticket machines.