Beijing's registered urban population stood at 18.8 million last year, over 86 per cent of the total permanent population, said the city statistics bureau.
The number of Beijing's permanent residents, holders of Beijing residence certificates, grew marginally by 0.1 per cent to 21.7 million last year, Pang Jiangqian, deputy head of the city statistics bureau said.
Residents aged between 15 and 59 constituted 73.7 per cent of the total, those aged 14 and under 10.3 per cent and the over-60s accounted for 16 per cent.
The city's population has expanded rapidly in recent years, as migrants from other parts of the country arrive seeking jobs.
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