| Census/survey characteristics |
| Type |
Census |
| Title |
15th General Population and Housing Census |
| Statistical agency |
National Institute of Statistics |
| Population universe |
All citizens or foreigners registered to stay in Italy |
| De jure or de facto |
De jure |
| Census/survey day |
October 9, 2011 |
| Questionnaire |
A single census form for dwellings and persons |
| Type of fieldwork |
Direct and self-enumeration |
| Microdata sample characteristics |
| Sample design |
5% sample drawn by national statistics office |
| Sample fraction |
0.05 |
| Sample size (person records) |
2968065 |
| Sample weights |
Self-weighting (expansion factor=20) |
| Units identified in microdata |
| Dwellings |
No |
| Vacant units |
No |
| Households |
Yes |
| Collective dwellings |
Yes |
| Smallest geography |
Region |
| Unit definitions |
| Dwellings |
Dwelling refers to a room (or set of rooms) that is: regularly dedicated to residential use; separate (i.e. surrounded by walls and covered by a roof); independent (with at least one external access that is either independent or through shared entry areas - road, courtyard, stairs, landings, common balconies, terraces, etc. - access, in other words, does not require passing through other dwellings); incorporated in a building (or constitutes a building). |
| Households |
Group of persons who are cohabiting as usual residents of a dwelling |
| Collective dwellings |
Collective residential structure refers to facilities used to house large groups of people and/or one or more families. This category includes hotels, hospitals, rest homes for senior citizens and reception centers and institutes of various kinds (religious, healthcare-related, welfare support, educational, etc.). |