The Venice having 155.000 people isn't the islands. Those have roughly 55.000 people. The rest is spread on the mainland. In Italy when you talk about a city i

The Venice having 155.000 people isn't the islands. Those have roughly 55.000 people. The rest is spread on the mainland. In Italy when you talk about a city it's usually about the city itself and some towns around it. In this case most of the population is in Mestre and Marghera. So it's actually even smaller than you thought :)