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Town hall of Troisdorf
Town hall of Troisdorf
Coat of arms of Troisdorf
Coat of arms
Troisdorf is located in Germany
Coordinates: 50°48′58″N 07°09′20″E / 50.81611°N 7.15556°E / 50.81611; 7.15556Coordinates: 50°48′58″N 07°09′20″E / 50.81611°N 7.15556°E / 50.81611; 7.15556
Country Germany
State North Rhine-Westphalia
Admin. region Köln
District Rhein-Sieg-Kreis
Subdivisions 12
 • Mayor Klaus-Werner Jablonski (since October 2009) (CDU)
 • Total 62.17 km2 (24.00 sq mi)
Elevation 55 m (180 ft)
Population (2013-12-31)[1]
 • Total 72,978
 • Density 1,200/km2 (3,000/sq mi)
Time zone CET/CEST (UTC+1/+2)
Postal codes 53840, 53842, 53844
Dialling codes 02241, 02203, 02246, 0228
Vehicle registration SU

Troisdorf (German pronunciation: [ˈtroːsdɔrf]) is a town in the Rhein-Sieg-Kreis (district), in North Rhine-Westphalia, Germany.


Troisdorf is located approximately 22 kilometers south of Cologne and 13 kilometers north east of Bonn.

Division of the town[edit]

Troisdorf consists of 12 districts (population as of December 31, 2005):

  • Troisdorf (15,947 inhabitants)
  • Spich (12,920 inhabitants)
  • Sieglar (8,773 inhabitants)
  • Friedrich-Wilhelms-Hütte (7,644 inhabitants)
  • Oberlar (6,109 inhabitants)
  • West (5,531 inhabitants)
  • Bergheim (5,232 inhabitants)
  • Rotter See (4,098 inhabitants)
  • Eschmar (3,242 inhabitants)
  • Kriegsdorf (2,640 inhabitants)
  • Altenrath (2,545 inhabitants)
  • Müllekoven (1,915 inhabitants)


Troisdorf became a free city in 1952. In 1969, the urban area expanded with the annexation of the township of Sieglar and the villages of Altenrath and Friedrich-Wilhelms-Hütte (total population in 1969: about 51,000). The first large settlements in this area go back to the 9th and 10th century (Eschmar and Sieglar 832, Bergheim 987). The first churches in this area were built around 700 AD in Bergheim (St. Lambertus).

Troisdorf is home to about 9600 foreign nationals. The two most numerous foreign national groups are Turks (3100) and Greeks (1600). On June 4th, 1972, Troisdorf founded the first advisory council for foreign citizens in Germany. In the years following the Peaceful Revolution and German reunification of 1989/1990 many migrants from Russia and other East European countries settled in Troisdorf.

On December 31, 2010, Troisdorf had a population of 76,987 according to official records. 11% of the population are foreign migrants.

Troisdorf has a predominantly Christian population: Roman Catholics, Protestants, Baptists, Jehovah's Witnesses and other Christian denominations, along with Muslim, Orthodox Christian and Jewish populations of non-indigenous origin. Troisdorf is one of the German cities where its mosque includes a minaret, built for the local Islamic community.



  • 1969–1975: Josef Ludwig (CDU)
  • 1975–1993: Hans Jaax (SPD)
  • 1993–1998: Uwe Göllner (SPD)
  • 1998–1999: Walter Bieber (SPD)


  • 1999–2009: Manfred Uedelhoven (CDU)
  • since October 21st 2009: Klaus-Werner Jablonski (CDU)

Notable places[edit]

Europe's only picture-book museum is located in Troisdorf at the Burg Wissem castle.

Twin cities[edit]

Notable persons[edit]


External links[edit]