With the availability of up-to-date benchmark population data from the 2016 Population By-census, the Census and Statistics Department has prepared a new set of population projections covering the period from 2017 to 2066, with the mid 2016 population as the base, which was released on 8 September 2017. According to the results of the baseline population projections, the Hong Kong Resident Population is projected to increase from 7.34 million in mid-2016 to a peak of 8.22 million in mid-2043, and then decline to 7.72 million in mid-2066. Population ageing is expected to continue. It will accelerate notably in the coming 20 years, and will be most rapid in the coming 10 years. Excluding foreign domestic helpers, the proportion of elderly persons aged 65 and over is projected to increase from 17% in 2016 to 31% in 2036, and further rise to 37% in 2066. This feature article provides a brief account of the method, assumptions and results of the projections.