Trondheim Trondheim Trondheim (; historically Kaupangen, Nidaros and Trondhjem) is a city and municipality in Trøndelag county, Norway. It has a population of 193,501 (4th quarter 2017), and is the third-most populous municipality in Norway, although the fourth largest urban area. It is the third largest city in the country, with a population (2013) of 169,972 inhabitants within the city borders. Trondheim lies on the south shore of Trondheim Fjord at the mouth of the River Nidelva. The city is dominated by the Norwegian University of Science and Technology (NTNU), the Foundation for Scientific and Industrial Research (SINTEF), St. Olavs University
Trondheim is decorated by thousands of tiny lights that change in a variety of colours and patterns, and is a landmark in the cityscape - especially on dark winter evenings. The municipality is governed by a municipal council of elected representatives, which in turn elect a mayor. On 1 January 2005, the city was reorganized from five boroughs into four, with each of these having separate social services offices. The current boroughs are Midtbyen (44,967 inhabitants), Østbyen (42,707 inhabitants), Lerkendal (46,603 inhabitants) and Heimdal (30,744) inhabitants. The Population statistics listed are as of 1 January 2008. Prior to 2005, Trondheim was