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Sønderborg Municipality

Logo: sonderborgkommune.dk4

Municipality in Southern Denmark, Denmark

Sønderborg Municipality (Danish: Sønderborg Kommune, German: Kommune Sonderburg), is a kommune in the Region of Southern Denmark partially on the Jutland peninsula and partially on the island of Als in south Denmark, at the border with Germany. The municipality covers an area of 495.86 km2 (191.45 sq mi), and has a population of 74,123 (as of 2026). Its mayor as of 1 January 2014 is Erik Lauritzen, a member of the Social Democratic party.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Jan 1, 2007Founded1
  • HeadquartersSønderborg, Denmark1
  • Websitesonderborgkommune.dk
  • Legal formmunicipality of Denmark1
  • Kind of organizationGovernment entity1
  • LEI213800437NJQOML5A1153
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressRådhustorvet 10, 6400 Sønderborg, Denmark3
  • Registered withDanish Business Authority, 291897733

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Sønderborg-townscape
Photo: Dguendel, CC BY 3.0, via Wikimedia Commons6

Sønderborg Municipality (Danish: Sønderborg Kommune, German: Kommune Sonderburg), is a kommune in the Region of Southern Denmark partially on the Jutland peninsula and partially on the island of Als in south Denmark, at the border with Germany. The municipality covers an area of 495.86 km2 (191.45 sq mi), and has a population of 74,123 (as of 2026). Its mayor as of 1 January 2014 is Erik Lauritzen, a member of the Social Democratic party.2

Corporate structure

Sønderborg Municipality sits at the top of its group. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

  • Sønderborg Municipality Sønderborg, Denmark
    • SONFOR Service A/S Subsidiary · Sønderborg, Denmark

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0). Each entity in the chart links to its source.

The story

On 1 January 2007, as part of Kommunalreformen ("The Municipal Reform" of 2007), the former Sønderborg municipality, located on Als and the mainland, was combined with Augustenborg (on Als), Broager, Gråsten, Nordborg (on Als), Sydals (on Als), and Sundeved municipalities to form a new Sønderborg municipality. The municipality shares the number one position with Lolland Municipality of being formed through the merger of most former municipalities in the reform of 2007:seven (7). The former Sønderborg municipality covered an area of 54 km2 (21 sq mi), and had a population of 30,555 (2005). Its last mayor was Arne Peder Hansen, a member of the Venstre (Liberal Party) political party.

From Wikipedia’s article on Sønderborg Municipality, shared under CC BY-SA 4.0.5

Products and brands

The city of Sønderborg

The site of its municipal council is the town of Sønderborg.

From Wikipedia’s article on Sønderborg Municipality, shared under CC BY-SA 4.0.5

Acquisitions

  1. Succeeded Augustenborg Municipality1
  2. Succeeded Broager Municipality1
  3. Succeeded Gråsten Municipality1
  4. Succeeded Nordborg Municipality1
  5. Succeeded Sundeved Municipality1
  6. Succeeded Sydals Municipality1
  7. Succeeded Sønderborg Municipality (1970-2006)1

Timeline

  1. Jan 1, 2007Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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