The X Factor (UK series 5) Ratings Ratings

| Episode | Air_date | Official_ITV1_rating | Weekly_rank | Share_ |
|---|---|---|---|---|
| Results 2 | 18 October | 9.13 | 9 | 39.7% |
| Live show 3 | 25 October | 10.37 | 2 | 39.7% |
| Results 3 | 25 October | 8.89 | 10 | 38.0% |
| Live show 4 | 1 November | 11.65 | 1 | 43.3% |
| Results 4 | 1 November | 9.72 | 6 | 37.6% |
| Live show 5 | 8 November | 10.72 | 2 | 42.6% |
| Results 5 | 8 November | 9.46 | 7 | 35.6% |
| Live show 6 | 15 November | 11.28 | 1 | 43.5% |
| Results 6 | 15 November | 10.62 | 2 | 42.9% |
| Live show 7 | 22 November | 11.77 | 1 | 43.2% |
| Results 7 | 22 November | 9.98 | 6 | 41.1% |
| Live show 8 | 29 November | 12.67 | 1 | 46.0% |
| Results 8 | 29 November | 11.41 | 2 | 50.0% |
| Semi-final | 6 December | 10.30 | 3 | 39.1% |