Holbæk Municipality is a kommune in northwestern Region Sjælland on the island of Zealand in Denmark. The municipality includes the island of Orø, and covers an area of 583 km², and has a total population of 74,129 (2024). Its mayor is Christina Krzyrosiak Hansen, a member of the Social Democrats and the youngest mayor ever in Denmark. The main town and the site of its municipal council is the city of Holbæk. On 1 January 2007 Holbæk municipality was, as the result of Kommunalreformen ("The Municipal Reform" of 2007), merged with existing Jernløse, Svinninge, Tornved, and Tølløse municipalities to form a new Holbæk municipality.

Politics

Holbæk's municipal council consists of 31 members, elected every four years. The municipal council has seven political committees.

Municipal council

Below are the municipal councils elected since the Municipal Reform of 2007.

Urban areas

The ten largest urban areas in the municipality are:

The town of Holbæk

The number of inhabitants on 1 January:

Image gallery