Abstract
In our paper we explore two different Italian cities for the diversity in population. Turin is the old capital city of Italy, drives Italian automotive industry and hosts the well known university. Hence Venice is one of the most visited touristic cities in the world. Beside from commonly used census data, we analysed mobile phone datasets to examine the distribution of different communities among the city. The presence of immigrants and tourists in various locations during day and night would shape the heterogeneity of a city’s ethnic and cultural dynamics. The diversity and integrity of different communities may resolve in healthy economical growth for cities. In that paper we try to answer if we can foresee the diversity of a city under the light of mobile phone usage.