
Originally Posted by
EvilEye007
Actually a settler unit usually costs your city 2 population to build, but under a Republic it only costs 1 population to build.
Anyways, the main way to grow your cities is to have your workers gather food from the resources around your city. Remember there will be buildings to further increase how much food is produced like granaries and harbors.
However, if you have built a city in an area with very little food resources than yes, you can build settlers in other cities and bring them to settle down in this city.