| Census characteristics |
| |
1989 |
1999 |
2009 |
| Title |
1989 Population and Housing Census |
1999 Population and Housing Census |
2009 Population and Housing Census |
| Census agency |
Bureau of The Central Steering Committee for the 1989 Population and Housing Census. General Statistics Office. |
Bureau of The Central Steering Committee for the 1999 Population and Housing Census. General Statistics Office. |
Bureau of The Central Steering Committee for the 2009 Population and Housing Census. General Statistics Office. |
| Population universe |
Residents in Vietnam, including those usually resident in Vietnam, but who were overseas at the time of the census; special groups were enumerated, including the police force, army and foreign affairs. |
Residents in Vietnam, including those usually resident in Vietnam, but who were overseas at the time of the census; special groups were enumerated, including the police force, army and foreign affairs. |
Residents in Vietnam, including those usually resident in Vietnam, but who were overseas at the time of the census; special groups were enumerated, including the police force, army and foreign affairs. |
| De jure or de facto |
De jure |
De jure |
De jure |
| Enumeration unit |
Occupied dwellings |
Occupied dwellings |
Occupied dwellings |
| Census day |
April 1, 1989 |
April 1, 1999 |
April 1, 2009 |
| Field work period |
— |
Completed within 7 to 10 days |
Completed within 7 to 14 days |
| Enumeration forms |
Two forms: long (5% sample survey) and short (remaining 95% of the population). The long form contained both the core and sample questions. Dwelling questions covered 19 provinces/cities, not necessarily corresponding to the sample survey. |
Two forms: long (3% sample survey) and short (remaining 97% of the population). The long form contained both the core and sample questions. Dwelling questions were included as core questions (100% of population) and, in rural areas, additional household questions on means of production were included on both long and short forms. |
Two forms: long (15% sample survey) and short (remaining 85% of the population). The long form contained both the core and sample questions. |
| Type of field work |
Direct enumeration |
Direct enumeration |
Direct enumeration |
| Respondent |
Householder or responsible adult |
Householder or responsible adult |
Householder or responsible adult |
| Undercount |
No official estimate |
No official estimate |
— |
| Microdata sample characteristics |
| |
1989 |
1999 |
2009 |
| Microdata source |
Constructed by census agency. Microdata files from floppy discs dated April 19, 1995 |
Constructed by census agency. Microdata files from CD dated September 7, 2000 |
Constructed by census agency. Microdata files from CD dated November, 2010 |
| Sample design |
Stratified systematic sample of enumeration areas. Strata correspond to 80 geographic areas, according to urban/rural and provinces/cities. All dwellings/households within an enumeration area are included in the sample. |
Stratified systematic sample of enumeration areas. Strata correspond to 122 geographic areas, according to urban/rural and provinces/cities. All dwellings/households within an enumeration area are included in the sample. |
Stratified systematic sample of enumeration areas. Strata correspond to 3 groups of districts. All dwellings/households within an enumeration area are included in the sample. |
| Sampling unit |
Enumeration Area |
Enumeration Area |
Enumeration Area |
| Sample fraction |
5% |
3% |
15% |
| Sample size (person records) |
2,626,985 |
2,368,167 |
14,177,590 |
| Sample weights |
Computed by census agency and should be used for most types of analysis |
Computed by census agency and should be used for most types of analysis |
Computed by census agency and should be used for most types of analysis |
