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
Plzeň Region reside in Plzeň which is the fourth largest city in the Czech Republic with 167 thousand inhabitants. Plzeň is the largest city in the region. There are 56 towns in the region, which account for 67% of the total population. More than 30% of the population lives in municipalities with less than 2000 inhabitants. The Plzeň Region is the third least densely populated region in the Czech Republic. The population density is 75.6 inhabitants per km² while the national average is 133.2 inhabitants per km². The least populated parts of the region are Tachov District (38.5 inhabitants per km²) and