| Census/survey characteristics |
| Type |
Census |
| Title |
2015 Population and Housing Census |
| Statistical agency |
Statistics Sierra Leone (SLL) |
| Population universe |
All persons living in Sierra Leone |
| De jure or de facto |
De facto |
| Census/survey day |
December 4, 2015 |
| Field work period |
Night of December 4 to 5, 2015 |
| Questionnaire |
Sierra Leone 2015 Population and Housing Census questionnaire. Seven sections. |
| Type of fieldwork |
Direct enumeration (house-to-house visits) |
| Microdata sample characteristics |
| Sample design |
Systematic sample of every 10th household with a random start, drawn by the IPUMS |
| Sample fraction |
10% |
| Sample size (person records) |
710891 |
| Sample weights |
Self-weighting (expansion factor = 10). |
| Units identified in microdata |
| Dwellings |
Yes |
| Vacant units |
Yes |
| Households |
Yes |
| Collective dwellings |
Yes |
| Smallest geography |
Chiefdom |
| Unit definitions |
| Dwellings |
The dwelling unit refers to that part of the structure occupied by the household. It is a structurally separate and independent place of abode. |
| Households |
A household is defined as a person or group of persons who normally eat and live together and who recognize a particular person as the head. A household may occupy a whole building, part of a building, or many buildings. A man with several wives might maintain separate living quarters for his wives and their children; in such cases, each wife and her children should be enumerated as a separate household. |
| Collective dwellings |
Groups of people live together but do not belong to a household. This includes persons in hospitals, colleges, hotels, barracks, prisons, or similar. |
| Special populations |
Homeless and floating population |