Sønderborg

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Sønderborg

Total population

27,785

Elevation17 m

Land area13.4 km²

Coordinates54.91°, 9.79°

Demographic figures from Statistics Denmark. Overview below cites Wikipedia and may reference a different year.

City facts

Facts from Wikidata (CC0).

Overview

Sønderborg 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 28,564, in a municipality of 74,123. 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.

History & geography

Excerpted from the corresponding Wikipedia article (CC BY-SA).

Geography

Coordinates & boundaries from the US Census TIGER/Line shapefiles.

Notable people from here

C

Christian Gerthsen

German physicist (1894–1956)

Hans Peter Hanssen

Danish politician (1862-1936)

Richard Parkinson

Danish scientist and explorer (1844-1909)

Z

Zacharias Lund

German librarian

Frederick Christian II, Duke of Schleswig-Holstein-Sonderburg-Augustenburg

Duke of Schleswig-Holstein-Sonderburg-Augustenburg (1765-1814)

Thomas Clausen

Danish mathematician and astronomer (1801–1885)

Frederick Christian I of Schleswig-Holstein-Sonderburg-Augustenburg

Duke of Schleswig-Holstein-Sonderburg-Augustenburg (1721-1794)

Carl August, Crown Prince of Sweden

Heir to the Throne of Sweden

Prince Christian of Schleswig-Holstein

German prince (1831-1917)

Frederick VIII, Duke of Schleswig-Holstein

German noble (1829–1880)

D

Dorothea Louise von Schleswig-Holstein-Sonderburg-Augustenburg

(1663-1721)

Princess Dorothea of Schleswig-Holstein-Sonderburg-Beck

German noble

P

Paul Christian Henrici

German judge (1816-1899)

Ludvig Harboe

Norwegian bishop

Friedrich Carl von Ahlefeldt

Wilhelm Voigt

German architect (1857–1916)

People born within ~10 km, from Wikidata (CC0). Click any name for their Wikipedia article.

Nearby places in Southern Denmark

• Kær
  2 mi away · pop. 318
• Dybbøl
  2.8 mi away · pop. 2,495
• Høruphav
  4.2 mi away · pop. 2,514
• Skelde
  4.3 mi away · pop. 302
• Augustenborg
  4.4 mi away · pop. 3,255
• Vester Sottrup
  4.5 mi away · pop. 1,470
• Broager
  5 mi away · pop. 3,300
• Dyndved
  6 mi away
• Ullerup
  6.4 mi away · pop. 416
• Guderup
  6.5 mi away · pop. 2,558
• Stevning
  6.7 mi away · pop. 428
• Egernsund
  7.4 mi away · pop. 1,556

Browse all places in Southern Denmark →

Geography & sun

Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.

Public attention

Pageview totals from the Wikimedia Pageviews API.

Recently spotted species

Bar-tailed Godwit

Limosa lapponica

Seen 2026-09-21

White Wagtail

Motacilla alba

Seen 2026-09-21

Black-headed Gull

Chroicocephalus ridibundus

Seen 2026-09-21

Snakeblenny

Lumpenus lampretaeformis

Seen 2026-09-21

Lion's Mane Jelly

Cyanea capillata

Seen 2026-09-21

Common Pill Woodlouse

Armadillidium vulgare

Seen 2026-09-21

Red Knot

Calidris canutus

Seen 2026-09-21

Sun Fly

Helophilus pendulus

Seen 2026-09-21

European Comma

Polygonia c-album

Seen 2026-09-21

Research-grade observations from iNaturalist (within ~15 mi).

Official Identifiers