In Singapore, the Census of Population is conducted once in every ten years. It is the single largest household survey undertaken in Singapore, collecting information on key characteristics of the population and households.
Census is conducted to meet the statistical needs of Government Ministries, Departments, researchers, planners and the general public. The Census provides a comprehensive snapshot of the characteristics on the population and households in Singapore.
The Census provides comprehensive data on Singapore’s population and households. Basic population count and characteristics such as age, sex, ethnic group, type of dwellings and geographic distribution in Singapore were compiled from administrative records from multiple sources. Additional information not available from administrative sources were collected from a sample survey. These included marital status and fertility, religion, education and literacy, home language, mode of transport, elderly profile as well as housing and household characteristics.
For statistical purpose, Singapore Department of Statistics adopts the de jure concept for Singapore’s population estimates based on a person’s place of usual residence. According to the United Nations’ recommendations ,countries should apply a threshold of 12 months when considering place of usual residence. Persons who are absent from the country for a continuous period of 12 months or more should be excluded from the count of persons usually residing in the country.
In Singapore, register-based population statistics are estimated using administrative records from multiple sources. The merged administrative records provide the basic count and profile of the population. The “register-based” approach is in line with the practice of developed countries which maintain population registers or databases through linkage of administrative records.
Improvements in existing administrative data leads to database enhancements and revisions may occur in register-based population statistics because of this.