Queensland police are trying to track down an intruder who sexually assaulted a woman in a farmhouse near Mackay.

A woman has been sexually assaulted by a man who broke into her central Queensland farmhouse.

Police want to hear from anyone who saw anything suspicious in the Finch Hatton area, near Mackay, where the attack happened about 7.50am on Friday.

The woman had to be taken to hospital for treatment.

The man is described as slim and about 170cm tall.

He was wearing trousers and a dark hooded jacket at the time of the assault.

Anyone with information is urged to call Crime Stoppers on 1800 333 000.