Mšeno consists of nine municipal parts (in brackets population according to the 2021 census):[2] The name is derived from the Czech word mech, i.e.

A large part of the municipal territory lies in the Kokořínsko – Máchův kraj Protected Landscape Area.

The first written mention of Mšeno is from 1306, in a document signed by Wenceslaus III awarding the then-village to aristocrat Hynek of Dubá.

[4] During the Thirty Years' War the town suffered, but in the 17th and 18th centuries, it prospered and the population grew.

A valuable and numerous set of two-storey timbered and half-timbered small-town architecture is typical for the outskirts of the town.

The current appearance of the main urban spaces is determined by the late Neoclassical and eclectic buildings.