The season featured 15 teams from the 2014–15 Azadegan League, two new teams relegated from the 2014–15 Persian Gulf Pro League (Paykan and Naft Masjed Soleyman) and two new teams promoted from the 2014–15 League 2 (Aluminium Arak as champions and Kheybar Khorramabad).
Khooneh be Khooneh replaced Bahman Shiraz while Machine Sazi replaced Shahrdari Tabriz.
Paykan won the Azadegan League title for the second time in their history.
Paykan, Machine Sazi and Sanat Naft were promoted to the Persian Gulf Pro League.
Updated to games played on 16 May 2016Source: lig1.irNotes:Matches with spectator bans are not included in average attendances Not all matches are included in average attendancesNaft MIS and Paykan played last season in Persian Gulf Pro LeagueAluminium Arak, Kheybar Khorramabad and Khooneh Be Khooneh played last season in League 2 Notes:Updated to games played on 16 May 2016.