Seaforth, New South Wales

Seaforth
View of Middle Harbour from Seaforth
Seaforth
Interactive map of Seaforth
CountryAustralia
StateNew South Wales
CitySydney
LGA
Location
Established1906
Government
 • State electorate
 • Federal division
Area
 • Total
3.1 km2 (1.2 sq mi)
Elevation
70 m (230 ft)
Population
 • Total7,384 (SAL 2021)
Postcode
2092
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.