| Census characteristics |
| |
1991 |
2001 |
2011 |
| Title of census |
Population Census |
Population and Housing Census |
Population and Housing Census |
| Census agency |
Bangladesh Bureau of Statistics |
Bangladesh Bureau of Statistics |
Bangladesh Bureau of Statistics |
| Population universe |
Everyone who spent the night of March 11 to March 12 in Bangladesh. |
Everyone who spent the night of January 22-23 in Bangladesh. |
Everyone who spent the night of March 14-15 in Bangladesh. |
| De jure or de facto |
De facto |
De facto |
De facto |
| Enumeration unit |
Household |
Household |
Household |
| Census day |
12 a.m. to 5 a.m., March 12, 1991 |
12 a.m. to 5 a.m., January 23, 2001 |
12 a.m. to 6 a.m., March 15, 2011 |
| Field work period |
March 12-15, 1991 (enumeration period) |
January 23-27, 2001 (enumeration period) |
March 15-19, 2011 (enumeration period) |
| Enumeration forms used |
A single enumeration form requested information on the dwelling and individuals in the household. |
A single enumeration form requested information on the household and individuals in the household. Floating households were not asked questions about housing characteristics. |
Long and short enumeration forms. |
| Type of field work |
Direct interview |
Direct interview |
Direct interview |
| Respondent |
A responsible person of the household; can be any gender or age. |
A responsible person of the household; can be any gender or age. |
Head of the houshold or a responsible member of the household that knows all the information about the members of the household. |
| Coverage |
--- |
--- |
--- |
| Undercount |
Completion rate of 93.4%, with a missed rate of 6.6% and erroneously enumerated rate of 2%, resulting in a 4.6% net under enumeration rate (higher in urban areas) |
4.95% |
No information available |
| Microdata sample characteristics |
| |
1991 |
2001 |
2011 |
| Microdata source |
Bangladesh Bureau of Statistics |
Bangladesh Bureau of Statistics |
Bangladesh Bureau of Statistics |
| Sample design |
Systematic Sample of every 10th dwelling with a random start, drawn by MPC. |
Systematic Sample of every 10th dwelling with a random start, drawn by MPC. |
Systematic Sample of every 10th dwelling with a random start, drawn by Bureau of Statistics. |
| Sample unit |
Household |
Household |
Dwelling |
| Sample fraction |
10% |
10% |
5% |
| Sample universe |
--- |
--- |
--- |
| Sample size (person records) |
10,580,904 |
12,442,115 |
7,205,720 |
| Sample weights |
Self-weighting (expansion factor=10) |
Self-weighting (expansion factor=10) |
Self-weighting (expansion factor=10) |
| Unit Definitions (Census) |
| |
1991 |
2001 |
2011 |
| Dwellings |
--- |
--- |
--- |
| Households |
Person or persons related or unrelated, living together and taking food from the same kitchen. |
Person or persons related or unrelated, living together and taking food from the same kitchen. |
Person or persons related or unrelated, living together and taking food from the same kitchen. |
| Institutional households |
The hostels, hospitals, clinics, jails, barracks or orphanages where a person or a group of persons spent the census night. |
The hostels, hospitals, clinics, jails, barracks or orphanages where a person or a group of persons spent the census night. |
The hostels, hospitals, clinics, jails, barracks or orphanages where a person or a group of persons spent the census night. |
| Floating population |
The homeless or transient population found on the census night e.g. at railway stations, launch ghats, boats, majars, Mosques etc. Enumeration of this population was completed between 12 a.m. to 5 a.m. on March 12, 1991. |
The homeless or transient population found on the census night e.g. at railway stations, launch ghats, boats, majars, Mosques etc. Enumeration of this population was completed between 12 a.m. to 5 a.m. on January 23, 2001. |
The homeless or transient population found on the census night e.g. at railway stations, launch ghats, boats, majars, Mosques etc. Enumeration of this population was completed between 12 a.m. to 6 a.m. on March 15, 2011. |
| Other households |
Offices, residential hotels, religious institutions, educational institutions, and businesses where persons stay overnight. Overnight security guards are included here. |
Offices, residential hotels, religious institutions, educational institutions, and businesses where persons stay overnight. Overnight security guards are included here. |
Offices, residential hotels, religious institutions, educational institutions, and businesses where persons stay overnight. Overnight security guards are included here. |
