Population and Housing Census 2011
Namibia, 2011
Created on
Apr 25, 2019
Last modified
Apr 25, 2019
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Identification
Survey ID Number
NAM_2011_PHC_v01_M
Title
Population and Housing Census 2011
Country
| Name | Country code |
|---|---|
| Namibia | NAM |
Study type
Population and Housing Census [hh/popcen]
Series Information
The Namibia 2011 Population and Housing Census is the third post-independence census, the first and second ones were conducted in 1991 and 2001 respectively. Before independence censuses were taken at somewhat regular intervals in 1926, 1936, 1946, 1951, 1960, 1970 and 1981.
Abstract
The main objective of the Namibia 2011 Census was to provide socioeconomic information necessary for decision making at all levels. The census provides up to date information on the population size and growth, composition and structure, as well as the geographic distribution – by constituencies and regions. Specifically, the census will be expected to:
• provide an objective and adequate statistical basis for overall social and economic planning, monitoring and evaluation;
• provide an adequate statistical basis for measuring the size and growth of the population;
• determine the structure and composition of the population by age, sex, region and other socio-economic characteristics;
• provide a basis for estimating basic demographic characteristics, which include, among others, the levels of fertility and mortality, not only at national and regional levels, but also for specific population sub-groups;
• make it possible to estimate future population trends through population projections;
• provide information for updating the electoral boundaries and register;
• provide information for the delineation of regional as well as constituency boundaries;
• serve as a database for up-dating the Frame for the National Master Sample; and,
• provide statistical basis for small area estimation of key social, economic and other population-based indicators.
• provide an objective and adequate statistical basis for overall social and economic planning, monitoring and evaluation;
• provide an adequate statistical basis for measuring the size and growth of the population;
• determine the structure and composition of the population by age, sex, region and other socio-economic characteristics;
• provide a basis for estimating basic demographic characteristics, which include, among others, the levels of fertility and mortality, not only at national and regional levels, but also for specific population sub-groups;
• make it possible to estimate future population trends through population projections;
• provide information for updating the electoral boundaries and register;
• provide information for the delineation of regional as well as constituency boundaries;
• serve as a database for up-dating the Frame for the National Master Sample; and,
• provide statistical basis for small area estimation of key social, economic and other population-based indicators.
Kind of Data
Census/enumeration data [cen]
Unit of Analysis
- Households
- Individuals
- Housing units
- Individuals
- Housing units
Scope
Notes
The 2011 Namibia Population and Housing Census covered the following topics:
- Household identification
- Household demographics characteristics
- Education information (for all persons 5 years and above)
- Labour force information (for all persons 8 years and above)
- Fertility information (for females aged 12 to 64 years)
- Mortality, deaths in the household
- Housing characteristics
- Emigrants
- Household identification
- Household demographics characteristics
- Education information (for all persons 5 years and above)
- Labour force information (for all persons 8 years and above)
- Fertility information (for females aged 12 to 64 years)
- Mortality, deaths in the household
- Housing characteristics
- Emigrants
Coverage
Geographic Coverage
National
Universe
De facto census enumerates persons according to where they are found on the reference night. De jure census, on the other hand, enumerates persons according to where they usually live, and potentially increases chances of double counting. The de facto approach to enumeration is, therefore, preferred as it reduces coverage errors. The Namibia 2011 Census used the de facto enumeration approach. However, information on the de jure population can also be obtained.
Producers and sponsors
Primary investigators
| Name | Affiliation |
|---|---|
| Central Bureau of Statistics (CBS) | National Planning Commission, Government of Republic of Namibia |
Data Collection
Dates of Data Collection
| Start | End |
|---|---|
| 2011-08-28 | 2011-09-10 |
Data Collection Mode
Face-to-face [f2f]
Data Collection Notes
The Namibia 2011 Census was planned for the night of 28th August to 10th September 2011, with the former date as the reference night. Ideally, the enumeration reference date was the midnight of 28th August 2011. Practically, however, the whole night was taken as the Census Reference Night.
The census enumeration kicked off with the enumeration of the President of the Republic of Namibia, H.E. Nghifikepunye Pohamba and the Speaker of Parliament Hon. Theo Gurirab on the evening of 28th August – with Media coverage.
This was followed by the enumeration of special population groups on the Census Night which included persons on transit, homeless, persons in police holding cells, hotels and guesthouses, hospital in-patients and offshore populations. With the help of the Namibian Police, road blocks were set up strategically at mass transit points in all the regions to facilitate the enumeration of travelers. Enumeration of the diplomatic corps also took place on the census night via a self-administered questionnaire. The rest of the population was enumerated from the morning of 29th September 2011.
The census enumeration kicked off with the enumeration of the President of the Republic of Namibia, H.E. Nghifikepunye Pohamba and the Speaker of Parliament Hon. Theo Gurirab on the evening of 28th August – with Media coverage.
This was followed by the enumeration of special population groups on the Census Night which included persons on transit, homeless, persons in police holding cells, hotels and guesthouses, hospital in-patients and offshore populations. With the help of the Namibian Police, road blocks were set up strategically at mass transit points in all the regions to facilitate the enumeration of travelers. Enumeration of the diplomatic corps also took place on the census night via a self-administered questionnaire. The rest of the population was enumerated from the morning of 29th September 2011.
Questionnaires
Questionnaires
The following questionnaires were used to collect census:
• Form A (Long Form): For conventional households and residential institutions
• Form B1 (Short Form): For special population groups such as persons in transit (travellers), police cells, homeless and off-shore populations
• Form B2 (Short Form): For hotels/guesthouses
• Form B3 (Short Form): For foreign missions/diplomatic corps;
• Form C: For recording Emigrant characteristics
• Form A (Long Form): For conventional households and residential institutions
• Form B1 (Short Form): For special population groups such as persons in transit (travellers), police cells, homeless and off-shore populations
• Form B2 (Short Form): For hotels/guesthouses
• Form B3 (Short Form): For foreign missions/diplomatic corps;
• Form C: For recording Emigrant characteristics
Data Processing
Data Editing
Data processing activities started pre scanning activities. The following are the activities which were carried out in preparation for the release of the preliminary results and Data processing operation.
- Once the Questionnaire were received from field, the office staff had to sort them out according to their enumeration areas (EAs), constituencies and regions and create a shelve system where they are safely stored and will be retrieved for data processing.
- Questionnaires editing: The questionnaire was edited to ensure that all persons are correctly placed in their respective EAs, constituencies and regions where they were enumerated. The Geocode list was used to cross check the EA number on the questionnaire book cover to ensure that the number is correct. In addition, the editing looked at the identification section, thus, the region, constituency, EA code, Rural/urban, dwelling unit, household numbering. It is important to ensure that information on this section is correct to avoid transferring data from one region to another or constituency to another.
- Coding of the questionnaire: The coding looked at questions which the coders were not able to provide codes for, due to limited descriptions. These were only migration and labour force questions. Staff in the office did a detailed study to find codes for the occupation and industry by consulting other documentations such as international classifications.
- Once the Questionnaire were received from field, the office staff had to sort them out according to their enumeration areas (EAs), constituencies and regions and create a shelve system where they are safely stored and will be retrieved for data processing.
- Questionnaires editing: The questionnaire was edited to ensure that all persons are correctly placed in their respective EAs, constituencies and regions where they were enumerated. The Geocode list was used to cross check the EA number on the questionnaire book cover to ensure that the number is correct. In addition, the editing looked at the identification section, thus, the region, constituency, EA code, Rural/urban, dwelling unit, household numbering. It is important to ensure that information on this section is correct to avoid transferring data from one region to another or constituency to another.
- Coding of the questionnaire: The coding looked at questions which the coders were not able to provide codes for, due to limited descriptions. These were only migration and labour force questions. Staff in the office did a detailed study to find codes for the occupation and industry by consulting other documentations such as international classifications.
Data Appraisal
Data Appraisal
Census Coverage Errors
There are two main types of coverage errors. These relate respectively to under-coverage and over-coverage. Under-coverage errors occur when persons who should have been enumerated in the census are missed or the completed questionnaires relating to them are misplaced or lost. On the other hand, over-coverage errors are caused by mistaken inclusions, such as multiple enumerations of the same persons and the enumeration of persons who were not in the country during the Census Reference Night.
Under-coverage errors may be an outcome of one of the following situations:
- localities that are completely omitted from the census count because they were not covered by the interviewer
- houses or dwelling units not enumerated in localities that were covered by the interviewer
- households omitted in houses or dwelling units that were covered
- persons not enumerated in households that were covered
- persons not belonging to private households and were not counted
Over-coverage is likely to occur when:
- persons are enumerated more than once thereby inflating the population figure for an area
- either respondents or the interviewers are not careful to ensure that only persons who spent the census reference night in the household are counted
The latter case may occur when the concept of the census reference night is not clearly understood by the respondents, or the interviewer fails to pose this question properly.
For this census, the PES was limited to the household population. Under-coverage for the special population groups like institutions and the homeless was not included. It is assumed that these are relatively small and with high mobility. The cost of including them in the PES is not commensurate with their likely contribution to the coverage error.
There are two main types of coverage errors. These relate respectively to under-coverage and over-coverage. Under-coverage errors occur when persons who should have been enumerated in the census are missed or the completed questionnaires relating to them are misplaced or lost. On the other hand, over-coverage errors are caused by mistaken inclusions, such as multiple enumerations of the same persons and the enumeration of persons who were not in the country during the Census Reference Night.
Under-coverage errors may be an outcome of one of the following situations:
- localities that are completely omitted from the census count because they were not covered by the interviewer
- houses or dwelling units not enumerated in localities that were covered by the interviewer
- households omitted in houses or dwelling units that were covered
- persons not enumerated in households that were covered
- persons not belonging to private households and were not counted
Over-coverage is likely to occur when:
- persons are enumerated more than once thereby inflating the population figure for an area
- either respondents or the interviewers are not careful to ensure that only persons who spent the census reference night in the household are counted
The latter case may occur when the concept of the census reference night is not clearly understood by the respondents, or the interviewer fails to pose this question properly.
For this census, the PES was limited to the household population. Under-coverage for the special population groups like institutions and the homeless was not included. It is assumed that these are relatively small and with high mobility. The cost of including them in the PES is not commensurate with their likely contribution to the coverage error.
Access policy
Contacts
| Name | URL |
|---|---|
| National Planning Commission | http://www.npc.gov.na/gsd/index.htm |
Citation requirements
Use of the dataset must be acknowledged using a citation which would include:
- the Identification of the Primary Investigator
- the title of the survey (including country, acronym and year of implementation)
- the survey reference number
- the source and date of download
Example:
Namibia Central Bureau of Statistics (CBS), National Planning Commission. Namibia Population and Housing Census 2011. Ref. NAM_2011_PHC_v01_M. Dataset downloaded from [source] on [date].
- the Identification of the Primary Investigator
- the title of the survey (including country, acronym and year of implementation)
- the survey reference number
- the source and date of download
Example:
Namibia Central Bureau of Statistics (CBS), National Planning Commission. Namibia Population and Housing Census 2011. Ref. NAM_2011_PHC_v01_M. Dataset downloaded from [source] on [date].
Disclaimer and copyrights
Disclaimer
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
Metadata production
DDI Document ID
DDI_NAM_2011_PHC_v01_M_WB
Producers
| Name | Abbreviation | Role |
|---|---|---|
| World Bank, Development Economics Data Group | DECDG | Documentation of the study |
Date of Metadata Production
2013-03-12
DDI Document version
Version 01 (March 2013)