Woman missing in NSW for more than a month

A woman who has been missing for more than a month has no fixed address and frequently travels on trains throughout NSW, police say.

Lin Dinnien, 56, was last seen at a health facility on Clifford St, Goulburn, in the NSW Southern Tablelands, around 4pm on April 13.

Police say the woman, who is described as Asian in appearance, is known to travel on trains in Sydney, Newcastle and the Central Coast.

She is about 150 to 155cm tall, has shoulder-length black hair and was last seen wearing a grey cardigan, black tights and sandals.