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Sønderborg

File:Harbour_of_Sønderborg.jpg · Wikimedia Commons · See Wikimedia Commons

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Sønderborg

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Also known as Sonderborg, Soenderborg, Sonderburg

'''''' (; ) is a Danish town in the Region of Southern Denmark. It is the main town and the administrative seat of Sønderborg Municipality (Kommune). The town has a population of 28,333 (1 January 2025), in a municipality of 74,096. In recent times, Sønderborg is a center for trade, tourism, industry, and education in the region of Southern Denmark. The town is the headquarters for several industrial companies. Sønderborg joined the UNESCO Global Network of Learning Cities in 2016.

OverviewAI-generated

Sønderborg is a city in Denmark, serving as the capital of Sønderborg Municipality. It is situated in the South Denmark region and has a population of 27,595. The city covers an area of 13.4 square kilometers and stands at an elevation of 17 meters above sea level. Its official postal code is DK-6400 Sønderborg, and it operates within the UTC+01:00 and UTC+02:00 time zones.

The municipality has been twinned with Finsterwalde, Sundsvall Municipality, Pori, and Sigtuna Municipality. Sønderborg is described in sources such as the Brockhaus and Efron Encyclopedic Dictionary and the Encyclopædia Britannica 11th edition. The city’s official website is sonderborg.dk.

Synthesized by Vinony from 50 facts across 7 sources: Wikidata, Open Meteo, Openweathermap, OpenStreetMap, GeoNames, Vinony graph, Geo. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Weather now

cached 17h ago
15°clear sky
77% 4.1 m/s OpenWeatherMap

7-day forecast

via Open-Meteo

Place details

Locality
Sønderborg
Region
Region Syddanmark
Country
Danmark
Population
27,766
Timezone
Europe/Copenhagen

via OpenStreetMap · GeoNames

Air quality

34US AQIGood
PM2.5
4.6 µg/m³
PM10
12.3 µg/m³
As of 2026-08-11 03:00 · Open-Meteo

Key facts

Settlement.name
Sønderborg
Settlement.image_skyline
Harbour of Sønderborg.jpg
Settlement.image_caption
Harbour
Settlement.image_shield
Coat of arms of Sønderborg.svg
Settlement.pushpin_map
Denmark#Denmark Region of Southern Denmark
Settlement.pushpin_map_caption
Location in Denmark
Settlement.subdivision_type
Country
Settlement.subdivision_name
Denmark
Settlement.subdivision_type1
Region
Settlement.subdivision_name1
Southern Denmark (Syddanmark)
Settlement.subdivision_type2
Municipality
Settlement.subdivision_name2
Sønderborg
Settlement.leader_title
Mayor
Settlement.leader_name
Eric Lauritzen
Settlement.established_title
Founded
Settlement.established_date
1256
Settlement.unit_pref
Metric
Settlement.area_urban_km2
13.4

via Wikipedia infobox

Travel guide

Understand

thumb|Sønderborg Sønderborg is a centre for trade, tourism, industry, and education and the seat of the Sønderborg Municipality. The population is 28,000 in 2023.

Get around

thumb|Walking is a safe and enjoyable way to get around in Sønderborg. Sønderborg is not very far from the Danish-German border. Just south of the border is the German town of Flensburg, which is popular among Danes going to Germany on a one-day trip, often to shop and to buy alcohol and chocolate, which is cheaper in Germany than in Denmark.

See

thumb|Sønderborg Castle. From the courtyard. thumb|Dybbøl Mølle. An important national historic monument for Denmark. thumb|Augustenborg Palace

Go next

Flensburg is just across the German border.

Travel guide from Wikivoyage (CC BY-SA 4.0)

~10 min read

Encyclopedic overview

24 sections
Contents
  • Overview
  • History
  • Geography
  • Education
  • Higher education
  • Secondary education
  • Economy
  • Transportation
  • Rail
  • Air
  • Ferry
  • Notable natives
  • The Arts
  • Public thinking and public service
  • Science and business
  • Sport
  • Other
  • Panoramic view
  • Culture
  • Musical institutions
  • Attractions
  • In literature
  • References
  • External links

'''' (; ) is a Danish town in the Region of Southern Denmark. It is the main town and the administrative seat of Sønderborg Municipality (Kommune). The town has a population of 28,333 (1 January 2025), in a municipality of 74,096. In recent times, Sønderborg is a center for trade, tourism, industry, and education in the region of Southern Denmark. The town is the headquarters for several industrial companies. Sønderborg joined the UNESCO Global Network of Learning Cities in 2016.

== Overview ==

Excerpted from Wikipedia’s “Sønderborg” article, available under the CC BY-SA 4.0 licence.

Gallery (18)

On the map

13 mapped locations