Immigration was the sole driver of the United States' population growth in a single year for the first time since records began, a new study released Wednesday said. The nonpartisan Migration Policy ...

Once a runaway train, Canada’s immigration-driven population growth has come to a grinding halt. For the second straight quarter, the country’s population was little changed, compared with a quarterly ...

Birth rates have dropped faster than life expectancy has increased, causing slower population growth around the world. Forecasts from the United Nations predict that world population will actually ...