Seaforth, New South Wales

Seaforth
Sydney, New South Wales
View of Middle Harbour from Seaforth
Population7,384 (SAL 2021)
Established1906
Postcode(s)2092
Elevation70 m (230 ft)
Area3.1 km2 (1.2 sq mi)
Location12 km (7 mi) north-east of Sydney CBD
LGA(s)Northern Beaches Council
State electorate(s)Manly
Federal division(s)Warringah
Suburbs around Seaforth:
Killarney Heights Allambie Heights North Balgowlah
Castlecrag Castle Cove Seaforth Balgowlah
Northbridge Mosman Clontarf

Seaforth is a suburb of Northern Sydney, in the state of New South Wales, Australia. Seaforth is located 12 kilometres north-east of the Sydney central business district in the local government area of Northern Beaches Council and is part of the Northern Beaches region.

Seaforth overlooks Middle Harbour and is linked south to Mosman by the Spit Bridge. To the west, Seaforth overlooks Sugarloaf Bay across to the suburbs of Northbridge, Castlecrag and Castle Cove. The Garigal National Park sits on the northern border.