The former England captain was stopped by police when driving a woman's black Volkswagen Beetle in Wilmslow, Cheshire, at 2am on September 1.
Rooney was pulled over on Altrincham Road, around six miles north-west of the family home in Prestbury.
He was later arrested and bailed and on Monday he entered his guilty plea at Stockport Magistrates' Court.
The 31-year-old's court hearing came a day after he endured a miserable return to Old Trafford with Everton.
Rooney started as the Toffees were thrashed 4-0 by Manchester United to drop into the Premier League's bottom three.