| Clubs | AVG | Total | HIG | LOW | More |
|---|---|---|---|---|---|
 Celtic | 52,659 | 52,659 | 52,659 | 52,659 | |
 AFC Ajax | 51,463 | 51,463 | 51,463 | 51,463 | |
 FC Porto | 46,310 | 46,310 | 46,310 | 46,310 | |
Steaua Bucharest | 45,327 | 45,327 | 45,327 | 45,327 | |
Dundalk FC | 30,417 | 30,417 | 30,417 | 30,417 | |
BSC Young Boys | 30,224 | 30,224 | 30,224 | 30,224 | |
 FC Copenhagen | 20,519 | 20,519 | 20,519 | 20,519 | |
 Villarreal | 19,516 | 19,516 | 19,516 | 19,516 | |
 Dinamo Zagreb | 13,784 | 13,784 | 13,784 | 13,784 | |
 Ludogorets Razgrad | 11,812 | 11,812 | 11,812 | 11,812 | |
Alashkert FC | 2,100 | 2,100 | 2,100 | 2,100 | |
Valletta | 1,151 | 1,151 | 1,151 | 1,151 | |
Lincoln Red Imps | 1,020 | 1,020 | 1,020 | 1,020 | |
Flora Talinn | 886 | 886 | 886 | 886 | |
B36 Torshavn | 850 | 850 | 850 | 850 | |
Tre Penne | 743 | 743 | 743 | 743 | |
The New Saints FC | 712 | 712 | 712 | 712 | |
FC Santa Coloma | 600 | 600 | 600 | 600 | |
| Total | 18,339 | 330,093 |
AVG = Average,
HIG = Highest,
LOW = Lowest .