China has the world's largest population with more than 1.3 billion people.
The country has a relatively young population, with more than two-fifths under age 16.
As the UK becomes an ageing population with more older people than young, living longer and working longer, it's likely people will have second careers.
Earlier this year, China surpassed the United States as home to the world's largest Internet population, with more than 250 million users.
According to the 2011 census, some 140 linguistic, cultural or ethno-religious groups are represented in the Australian population with more than 300 ancestries.
Making sure that health and care provision adapts to support an increasingly older population, with more people wanting to live at home in their older age.
Instead, the focus should switch to the long-term challenges facing the NHS, namely how to meet rising demand from an ageing population with more complex needs.
It cited the rapid increase in drug use, high levels of sexually transmitted diseases, widespread prostitution and a population with more than half its people under 25.
Isis released a statement late on Wednesday, threatening Iran's majority Shia population with more attacks: "The caliphate will not miss a chance to spill their blood".
New Orleans "won't be the same" when the dust settles, he asserted calmly, suggesting that a new population with more "energy" may replace the old.
Context: The city of Utrecht has a large immigrant population, with more than 30percentt of residents born outside the Netherlands.
