The X Factor (UK series 5) Ratings Ratings

| Episode | Air_date | Official_ITV1_rating | Weekly_rank | Share_ |
|---|---|---|---|---|
| Semi-final results | 6 December | 10.60 | 2 | 39.6% |
| Final performances | 13 December | 13.77 | 2 | 50.3% |
| Final results | 13 December | 14.06 | 1 | 54.4% |
| Series average | 2008 | 10.51 | N/A | 42.4% |