Trooz Li Trô (Walloon)
Municipality
Trooz: main street, with the cliffs behind illuminated by the setting sun
Location of Trooz
Trooz Location in Belgium Location of Trooz in Liège province
Coordinates: 50°34′N 05°41′E / 50.567°N 5.683°E / 50.567; 5.683
Country	Belgium
Community	French Community
Region	Wallonia
Province	Liège
Arrondissement	Liège
Government
• Mayor	Fabien Beltran (PS)
• Governing party/ies	PS, ÉcoVA
Area
• Total	24.26 km2 (9.37 sq mi)
Population  (2018-01-01)[1]
• Total	8,172
• Density	340/km2 (870/sq mi)
Postal codes	4870
NIS code	62122
Area codes	04
Website	www.trooz.be

Trooz (French pronunciation: [tʁo]; Walloon: LiTrô) is a municipality of Wallonia located in the province of Liège, Belgium.

On July 1, 2012, Trooz had 8,432 registered inhabitants, of whom 4,199 were male and 4,233 female. The total area is 24.00 km² which gives a population density of 351 inhabitants per km².^[2]

Trooz is situated on the Vesdre River, and is part of the GREOA (Groupement Régional Économique des vallées de l'Ourthe et de l'Amblève) regional grouping for economic purposes.

The municipality consists of the following districts: Forêt, Fraipont, Nessonvaux.

The town centre is the former hamlet of Trooz, in the district of Forêt, which gave its name to the municipality.

Industrial heritage

The municipality includes several surrounding hamlets including Nessonvaux which is where, between 1904 and 1958, the Imperia company produced automobiles. The factory building survives. This building is one of three examples of test tracks on its roof. The other known roof test tracks are on the roof of the old Fiat factory in Turin, Italy, and Palacio Chrysler in Buenos Aires, which opened in 1928.