Town hall of Troisdorf

Coat of arms

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
  Mayor Klaus-Werner Jablonski (since October 2009) (CDU)
  Total 62.17 km2 (24.00 sq mi)
Population (2015-12-31)[1]
  Total 74,400
  Density 1,200/km2 (3,100/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]; Colognian: Trooßdoorf) 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.[2]

Division of the town

Troisdorf consists of 12 districts (population as of April, 2014):[2]

(total 76,435 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 4, 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 April, 2014, Troisdorf had a population of 76,435 according to official records.[2] 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.




Notable places

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

Twin cities

Notable persons


  1. "Amtliche Bevölkerungszahlen". Landesbetrieb Information und Technik NRW (in German). 18 July 2016.
  2. 1 2 3 "Willkommen in Troisdorf / Zahlen – Daten – Fakten" (PDF) (in German). Town of Troisdorf. p. 3. Retrieved 25 March 2015.
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