Thionville is a commune in the northeastern French department of Moselle. The city is located on the left bank of the river Moselle, opposite its suburb Yutz. Country France Region Grand Est Department Moselle Canton Thionville, Yutz Government  Mayor (2020–2026) Pierre Cuny (DVD) Area1 49.86 km2 (19.25 sq mi) Population (2017-01-01) 40,701 Time zone UTC+01:00 (CET)  Summer (DST) UTC+02:00 (CEST) Economy  steel industry  ; chemistry  ; cement plant  ; river port of Thionville-Illange ( 7 e of France); branch […]