pop‧u‧la‧tion S2 W1
the number of people living in a particular area, country etc
India has a population of more than 1 billion.
population explosion/boom (=a quick increase in the population of an area)
2 [countable usually singular]
all of the people who live in a particular area:
Most of the world's population doesn't get enough to eat.
white/French/urban etc population (=part of the group of people who live in a particular area who are white, French etc)
South Florida has a large Jewish population.
a city, town etc:
Cromer is the main centre of population in this area.