ITV said that the I'm A Celebrity final had a peak audience of 10.6 million last night, which was a 47% share of TV viewers.
The final show averaged 9.8 million, which was up 200,000 viewers on the audience for last year's final.
Overall series 12 of the show averaged 9.2 million viewers, making it the fourth most watched series ever, up on last year's series average of 8.9 million viewers, ITV said.
The X Factor drew a peak audience of 8.9 million viewers last night, and averaged 8 million viewers across the 90 minute show.
ITV1 said it was the most watched channel in prime time last night by more than a million viewers.
More top news
William and Kate were forced to change some of their programme when forecast torrential rain swamped the rural settlement of Bella Bella.
The Hollywood actor popped over to say hello when he saw the happy couple posing for pictures in New York's Central Park.
Half of those killed or maimed in the last 72 hours of intense bombardments in Aleppo have been children.