Well, according to the crime and safety index rank by Numbeo, Milan ranks 155 out of 338 countries in 2018.
Is Milan Safe for Tourists? Read My Personal Experience

LIVING IN MILAN
Quarto Oggiaro is widely reputed to be an unsafe area to stay, and tagged one of the neighbourhoods with the highest crime levels in Milan.
Well, according to the crime and safety index rank by Numbeo, Milan ranks 155 out of 338 countries in 2018.