The locality is about 4 kilometres (2.5 mi) north-east of the town of Rosny Park.

The 2016 census recorded a population of 2265 for the state suburb of Mornington.

It is part of greater Hobart, located approximately 7 kilometres from the CBD.

It is located between Warrane and Cambridge, is nearby to Mount Rumney and runs parallel to the Tasman Highway.

The main facilities are Clarence Council Depot, Main Roads and Transport Depot, a Service Tasmania vehicle inspection facility, a Fire and Ambulance Service, and MacKillop College.