There are at least two reasons why the population grew more quickly in New England than in the South. First, there was the fact that the South was dominated by plantations that were worked by slaves. This meant that most people who were considering immigrating to America did not want to go to the Southern colonies.
Instead, the population increase could primarily be attributed to internal factors such as changes in marriage age, improvements in health allowing more children to live to adulthood, and increasing birth rates.
