Frederikssund Kommune is a municipality on the shores of Roskilde Fjord in the northern part of the island of Zealand in eastern Denmark. On 1 January 2007, the municipality was enlarged to include the old Jægerspris, Slangerup, and Skibby municipalities. It now covers an area of 250 km² and has a population of 44,401. As of 1 January 2014 its mayor is John Schmidt Andersen, a member of the agrarian liberal Venstre political party. Frederikssund municipality belongs to Region Hovedstaden.
The seat of its municipal council is the town of Frederikssund with a population of 15,283. The town is connected to the Hornsherred peninsula by the Kronprins Frederik bridge. The former municipalities of Jægerspris and Skibby are located on this peninsula.
Wikipedia https://en.wikipedia.org/wiki/Frederikssund_Municipality
Coordinates 55°50'30.39" N 12°3'48.942" E