Map of Troisdorf, Germany

Troisdorf is a city in North Rhine-Westphalia, Germany, with a population of about 74,749. It lies at 50.8090°N, 7.1497°E. Troisdorf is about 472 km (293 mi) west of Berlin, the capital. The nearest city on our map is Siegburg, 4 km to the east.

Troisdorf at a glance

Where is Troisdorf?

• Located in the Northern and Eastern hemispheres.
• Daylight ranges from about 7 h 56 min on the shortest day to 16 h 31 min on the longest day (around 21 December and 21 June).

Cities near Troisdorf

• Siegburg — 4 km east
• Sankt Augustin — 5 km southeast
• Niederkassel — 8 km west
• Bonn — 9 km southwest
• Hennef (Sieg) — 10 km east
• Bornheim — 12 km southwest
• Königswinter — 15 km south
• Brühl — 17 km west
• Bergisch Gladbach — 20 km north
• Cologne — 20 km northwest

Largest cities in North Rhine-Westphalia

• Cologne — 1,024,621
• Düsseldorf — 618,685
• Essen — 593,085
• Dortmund — 588,462
• Duisburg — 504,358
• Bochum — 385,729
• Wuppertal — 360,797
• Bielefeld — 331,906
• Bonn — 330,579
• Münster — 308,258

Largest cities in Germany

• Berlin — 3,426,354
• Hamburg — 1,973,896
• Munich — 1,505,005
• Cologne — 1,024,621
• Frankfurt am Main — 650,000
• Düsseldorf — 618,685
• Stuttgart — 612,663
• Essen — 593,085
• Dortmund — 588,462
• Dresden — 564,904

Map of Germany and all its cities →

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.