The gatehouse of Burg Wissem (Wissem castle) and the premises of the registroy office at the ground floor. On the right hand side, in the background, the manor house of Burg Wissem (Wissem castle). enlarge picture

With over 77,000 inhabitants, Troisdorf is the biggest city in the Rhein-Sieg-Kreis (Rhein-Sieg district) and is divided into 12 urban areas.

For over 30 years, a parliament for foreign nationals has given foreigners living in Troisdorf an opportunity to exert an influence in local politics. People from over 100 nations live here. Troisdorf now has eight partner towns.

Troisdorf lies directly on the A59, which links Cologne and Bonn. A large section of Cologne/Bonn Airport lies in the Troisdorf urban area. Troisdorf's location and transport links, together with the work done by TROWISTA , Troisdorfer Wirtschaftsförderungs- und Stadtmarketing GmbH (Troisdorf Business Development and Town Marketing), are key factors in the city’s status as one of the leading economic centres in the Rhineland.

Find out more about Troisdorf...

Greetings from the mayor

Mayor Klaus-Werner Jablonski

Dear residents of Troisdorf, dear guests to our town,
Welcome to Troisdorf, the largest town in the Rhein-Sieg-Kreis administrative district.

I am happy to welcome you to our town's website and hope you will enjoy your virtual tour of Troisdorf!

Our town welcomes children and families with a broad range of sports and leisure facilities. Comprising twelve dots, the town's modern logo symbolises twelve vibrant urban districts. The town is located between the large economic and cultural centres of Cologne and Bonn. It features three rivers, the Agger, Sieg and Rhine, and has much to offer:

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Troisdorf is a powerful  business location surrounded by green landscape. The transport links with surrounding towns are excellent and Cologne-Bonn Airport is close by. The town boasts high housing and living standards. Its slogan: "STADT TROISDORF - Eine Familien-Angelegenheit" - "CITY OF TROISDORF - A Family Affair".

Discover Troisdorf!

On our homepage, we provide you with information regarding the Troisdorf hotels and restaurants, the sights and many other points of interest. 

Should you require further up-to-date information and detailed advice or in the event of additional questions, our staff at the individual departments are at your service. Or send us an email with your request to: Do not hesitate to call us under +49 (0)2241/900-0.

Wishing all visitors to our town a pleasurable time. Enjoy your virtual journey through Troisdorf on "Troisdorf online".

Klaus-Werner Jablonski

Troisdorf - my city

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Troisdorf - my city

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Visit Troisdorf

A backpacker with a map in her hands. Light Impression - Fotolia

People are thought to stay in Troisdorf in order to visit Cologne and Bonn.
But there is also a lot to see in Troisdorf. We would like to introduce you to a few Sights and museums.

Visit Troisdorf...

Invest in troisdorf

aerial view of a big industrial complex

Since the start of the new millennium, three new industrial zones have been created and marketed. The city has Excellent "soft" location factors.

Invest in Troisdorf...