The 2021 Population Census (21C) in Hong Kong was conducted by the Census and Statistics Department (C&SD) of the HKSAR Government during 23 June to 4 August 2021. The 21C was conducted under the Census and Statistics (2021 Population Census) Order, which was made by the Chief Executive in Council under Section 9 of the Census and Statistics Ordinance (Cap 316). The Order, published in the Gazette on 16 October 2020, provided statutory backing for the conduct of the 21C. The 21C comprised a simple enumeration on about nine-tenths of households in Hong Kong to provide basic information (e.g. year and month of birth and sex) and a detailed enquiry on the remaining one-tenth on a broad range of demographic and socio-economic characteristics. Therefore, two types of questionnaire, namely the "Short Form" and the "Long Form", were used. More information...
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