Residents and Population

Residents, are people who live in your city, basically citizens of your city. They take up Food, and take up some of your Population up, there's no fixed Max Limit, however, if your Population is higher than your Population Max, then your food will go in the negative numbers, and when that happens, your food production stops increasing, and starts decreasing.

Heroes take up 6 Population spaces.

Different types of troops, take up different amounts of Population spaces. For example, Militia takes up 1 Pop. Space, but Qing Calvarly take up 4 Pop. Spaces.

Each building gives you Residents when upgraded, some don't give you residents when built, but can give you when upgraded after a certain level, and some buildings don't give you residents at all.