The mayor was earlier John Dyrby Paulsen, a member of the Social Democratic political party.

Korsør's location quickly made it an important town for ferry services to Nyborg on Funen.

This was also linked to Korsør's access to the sea, giving them a variety of opportunities and privileges, including being able to ship out the grain from many farm areas on western Zealand, leaving them in conflict with the neighboring towns.

Antvorskov barracks and the village of Harrested is located to the south, while the rest of the city borders fields.

The police department of the municipality is also located in the southern part of the town, as is Antvorskov Church.

The south-western part of the city consist of residential areas and a number of large shops.

The hiking trail and former railway Fodsporet cut through the south and western parts of Slagelse.

The center of Slagelse is the home to a large number of shops, restaurants, cafés and services.

[7][8] Korsør is located on the south-western tip of Zealand, connecting to Nyborg through the Great Belt Bridge.

The southern half of Korsør is known by the city's name, and is home to a naval base, a harbour, St Povls Church and a small industrial area.

In the village is the largest private collection of military vehicles in the Nordic countries, in a museum called PanzerMuseum East.

[13] Kirkerup is a small village located 10 km south-east of Slagelse who in 2023 received major media and police attention after a child abduction.

These are all the settlements with populations of less than 200 people:[31] Most of the land in the municipality are used for agriculture, leaving little territory for nature.

[32] Tude Å is a river spanning from Trelleborg near Slagelse and out to the coast between Frølunde Fed and Næsby Strand.

The river's significance in terms of flora and fauna is limited, but it is a historically important place due to its close ties to Trelleborg and the Vikings.

[34] In the south-west of Slagelse Municipality, bordering Skælskør to the south, is the peninsula of Stignæs.

Not all territory in the three fjords are protected, but they are all bird sanctuaries with strict rules in regards to hunting in the area.

[36] An old-growth forest is located on Ormø, where a large great cormorant colony also breeds.

[38] The land of Glænø are mainly cultivated, though also with beach meadows and a sizable forest of 60 acres.

The Social Democrats and Venstre tend to be roughly the same size and the two largest parties in most elections.

Other large industries are services such as accounting, counseling, real estate and cleaning.

Trelleborg is a museum and ring castle located west of Slagelse, between the villages of Hejninge, Gammel Forlev and Næsby ved Stranden.

A yearly Viking-themed market takes place in Trelleborg's grounds, and also includes a large Viking battle reenactment.

[76][77] Slagelse Municipality and the Danish National Museum are funding a project to rebuild part of the ring castle.

[78] PanzerMuseum East is a museum for military vehicles located 12 km south-east of Slagelse in the small village of Fladholte.

The museum holds the largest private collection of military vehicles in the Nordic Countries.

Holsteinborg is a manor and castle located south of Rude, north-west of Bisserup and north-east of Glænø.

Niels Trolle died in 1565 in the Seven Years' War, and Braade was inherited by his widow and children.

It remained under the Trolle family until 1707, where it was sold to Ulrich Adolph Holstein, who renamed the manor to Holsteinborg.

[103] A yearly Viking-themed market takes place on Trelleborg's grounds, and also includes a large Viking battle reenactment, as well as various types of entertainment and education.