Castlemore is suburban area that is located 14 km northeast of downtown Brampton in Ontario, Canada.

Castlemore is southwest of Bolton, southeast of Caledon and Orangeville, and west of Vaughan.

Farmlands formerly surrounded the centre of Castlemore, whereas forests are the dominant feature in the Etobicoke Creek and the West Humber River valleys, which include the outlying hills and a conservation area to the south.

In 2001, the southwestern portion near Springdale expanded and south of Castlemore since 2002 continues with smaller lots.

The luxury homes are between Airport and Goreway and the Gore and Castlemore Road and Mayfield.