
Faxe municipality is a municipality in Denmark in Region Sjælland on the island of Zealand. The municipality covers an area of 406 km² and has a population of 35,418 (2008). Its mayor as of January 2018 is Ole Vive. He is a member of the agrarian liberal Venstre political party.

Greve Municipality is a municipality about 21 km south-west of Copenhagen in Region Sjælland on the east coast of the island of Zealand (Sjælland) in eastern Denmark. The municipality covers an area of 60 km², and has a total population of 47,773 (2008).

Guldborgsund is a municipality in Region Sjælland in Denmark, created on 1 January 2007 from six (6) former municipalities on the two islands Lolland in the west and Falster in the east bordering the Guldborgsund strait. It covers an area of 903.15 km² (2013) and has a total population of 61,219. Its neighboring municipalities are Lolland to the west and Vordingborg to the north. Its administrative seat is in the town of Nykøbing Falster. Its mayor as of 1 January 2010 is John Brædder from the local political party Guldborgsundlisten.

Holbæk municipality is a municipality in northeastern Region Sjælland on the island of Zealand (Sjælland) in Denmark. The municipality includes the island of Orø, and covers an area of 583 km², and has a total population of 69,010 (2008). Its mayor is Christina Krzyrosiak Hansen, a member of the Social Democrats (Denmark) 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 , merged with existing Jernløse, Svinninge, Tornved, and Tølløse municipalities to form a new Holbæk municipality.

Kalundborg Municipality is a municipality in Region Sjælland on the west coast of the island of Zealand in Denmark. The municipality covers an area of 604 km2 (233 sq mi), and has a total population of 48,989. Its mayor is Martin Damm, a member of Venstre. The main town and the site of its municipal council is the city of Kalundborg.

Køge Municipality is a municipality in Region Sjælland on the east coast of the island of Zealand (Sjælland) approx. 40 km southwest of Copenhagen. The municipality covers an area of 255 km², and has a total population of 60,675 (2019). Until January 2007, its mayor was Torben Hansen, a member of the Social Democrats (Socialdemokraterne) political party, who died while still in office. He was replaced by Marie Stærke, who at age 27 was Denmark's youngest mayor at that time.

Lejre Municipality is a municipality in Region Zealand.

Lolland municipality is a municipality in Region Sjælland in Denmark. According to Municipal And Regional Key Figures (www.noegletal.dk) it covers a total area of 885.40 km² and has a population of 40,331. The western part of Guldborgsund Municipality, the southernmost in Denmark, occupies the eastern part of the island (Østlolland).
Næstved is a municipality in Region Sjælland on the island of Zealand (Sjælland) in the south of Denmark. The municipality includes the island of Gavnø. It covers an area of 681 km², and has a total population of 83,143 (2020). Its mayor is Carsten Rasmussen, a member of the Social Democrats (Socialdemokraterne) political party. The main town and the site of its municipal council is the town of Næstved.
Odsherred municipality is a municipality in Odsherred, Region Sjælland in Denmark. It covers an area of 355 km² and a total population of 33,129 (2008) and its seat is the town of Højby.

Ringsted Municipality is a municipality in Region Sjælland on the island of Zealand (Sjælland) in east Denmark. The municipality covers an area of 295 km², and has a total population of 32,092 (2008). Its mayor is Henrik Hvidesten, a member of Venstre.
Roskilde municipality is a municipality in Region Sjælland, 30 km west of Copenhagen on the island of Zealand (Sjælland) in east Denmark.
Slagelse Municipality is a municipality in Region Zealand on the west coast of the island of Zealand in Denmark. The municipality covers an area of 571 km². The municipality borders Kalundborg Municipality to the north, Sorø Municipality to the north-east, Næstved Municipality to the south-east and connects to Nyborg Municipality via the Great Belt Bridge.

Solrød is a municipality in Region Sjælland on the east coast of the island of Zealand (Sjælland) in east Denmark. The municipality covers an area of 40 km², and has a total population of 21,582 (2014). Its mayor is Niels Hörup, a member of the Venstre political party. The municipal seat is Solrød Strand.

Sorø Municipality is a municipality in Region Sjælland on the island of Zealand (Sjælland) in east Denmark. The municipality covers an area of 317 km2 (122 sq mi), and has a total population of 29,331 (2015). The main town and the site of its municipal council is the town of Sorø. Other towns in the municipality are Dianalund, Stenlille, and Ruds Vedby.

Stevns is a municipality in Region Sjælland on the southeast coast of the island of Zealand (Sjælland) in south Denmark. The municipality covers an area of 250 square kilometres (97 sq mi), and has a population of 22,782. The municipality covers most of Stevns Peninsula.

Vordingborg is a municipality (kommune) in the Sjælland Region, which is on the southeast coast of the island of Zealand (Sjælland) in south Denmark. It was established in 2007. The municipality covers an area of 621 km2. It has a total population of 46,600 (2006). Its fourth and current mayor is Mikael Smed of the Social Democrats, who was elected in 2017, replacing Michael Seiding Larsen of the agrarian-liberal Venstre party.