There are two subdivisions in NCAA Division I football: the Football Bowl Subdivision (FBS) and the Football Championship Subdivision (FCS).

• For the 2025 season, there are 136 teams in the Division I FBS

• For the 2025 season, there are 128 teams in the Division I FCS

Therefore, the total number of NCAA Division I football teams combining both subdivisions is approximately 264 teams (136 FBS + 128 FCS). Note that these numbers can vary slightly year to year due to teams moving between subdivisions or changes in conference alignments