This district is bounded towards the North by the Hawke's Bay Electoral District; towards the East by the sea; towards the South by the Waimata Stream to its source; thence by a right line to Trig. Station No. 41a; thence by a right line to Trig. Station on Whahatuaro; then by the Manawatu River to the Manawatu Gorge; thence towards the West by lines from peak to peak along the summit of the Ruahine Range to the Hawke's Bay Electoral District,