Explanatory factors of civic engagement mainly focus on trust and institutional quality, ethno-linguistic diversity and new forms of digitalised civic participation. We explore the relationship between civic engagement and socio-economic dimensions by conducting a first spatial analysis of civic engagement in three major urban Italian areas: Rome, Milan and Naples. We carry out explorative data spatial analysis and geographical regressions by using use secondary geocoded data from the 2014 Italian Participation Labour Unemployment Survey sampling 55,000 individuals, stratified over the Italian population aged 18-64. Civic engagement is measured in terms of individuals’ involvement in voluntary activities. We find that when individuals interact with people with a different socio-economic status they are less inclined participate in civic engagement. Policies involving civic engagement are necessary in heterogeneous urban centres.