Løgstør is a town with a population of 4,357 (1 January 2011)[1] and a former municipality (Danish, kommune) in Region Nordjylland on the Jutland Peninsula in northern Denmark. The municipality, including the island of Livø, covered an area of 218 km2 (84 sq mi), and had a total population of 10,270 (2005). Its last mayor was Jens Lauritzen, a member of the Venstre (Liberal Party) political party.
A bridge connects the former municipality near Tolstrup to the town of Aggersund on the far side of the Agger Strait.
The island of Livø lies off the former municipality's western shores, and is partially a protected nature reserve.
On January 1, 2007, Løgstør municipality ceased to exist as a result of Kommunalreformen ("The Municipality Reform" of 2007). It was merged with Farsø, Aalestrup, and Aars municipalities to form the new Vesthimmerland municipality. This created a municipality with an area of 815 km² and a total population of 39,176 (2005).