Average audience viewing figures were 15.5m for the two hour show.
Last night’s show, sponsored by Talk Talk, grabbed an audience share of 62% at its peak and its average share was 53%.
The 2009 show has been the most watched ever series of The X Factor and ITV1 has registered average viewing figures up 2m on last year to 11.8m, equivalent to a 45.4% share.
ITV.com’s The X Factor page also saw a boost of 22% in page views to 95 m and unique users shot up 77% to average 821,000 across the series.
Video views of the series topped 30.5m, up 61% on last year. Across the past weekend, the site saw 1.9m clip views, up 18% year on year.
The winner of the series was Joe McElderry. (pictured).
The following ITV1 show I Dreamed A Dream – The Susan Boyle Story, benefitted from a halo effect and recorded an average of 10m viewers, a 39% share.