The NFL Structure
There are 32 teams in the NFL that are split evenly between two conferences: the American Football Conference (AFC) and the National Football Conference (NFC).
Each conference is further broken down into 4 divisions: East, North, South, and West. Each division has 4 teams, who play each other twice a year, in one home game and one away game. These intra-division teams have some of the biggest rivalries, because they play each other so regularly.
The rest of the 16-game regular season is based on the teams’ relative performance in the past year and on a rotating schedule so that all teams play one another at least once every 3-4 years.