Tromello is a comune (municipality) in the Province of Pavia in the Italian region Lombardy, located about southwest of Milan and about west of Pavia. As of 31 December 2004, it had a population of 3,561 and an area of .All demographics and other statistics: Italian statistical institute Istat.
Tromello borders the following municipalities: Alagna, Borgo San Siro, Cergnago, Gambolò, Garlasco, Mortara, Ottobiano, San Giorgio di Lomellina, Valeggio.
On May 27, 2019, Tromello became the first Italian comune to elect a transgender mayor, Gianmarco Negri.
Demographic evolution
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