Mount Colah

Mount Colah Sydney, New South Wales
View of Bobbin Head from the Kalkari Visitor Center
Population	7,816 (2021 census)[1]
Postcode(s)	2079
Elevation	206 m (676 ft)
Location	24 km (15 mi) north of Sydney
LGA(s)	Hornsby Shire
State electorate(s)	Hornsby
Federal division(s)	Berowra
Suburbs around Mount Colah: Hornsby Heights Mount Ku-ring-gai Mount Ku-ring-gai Hornsby Heights Mount Colah Ku-ring-gai Chase National Park Hornsby Asquith North Wahroonga

Mount Colah is an outer suburb of Northern Sydney, in the state of New South Wales, Australia 24 kilometres north of the Sydney central business district, in the local government area of Hornsby Shire.

Mount Colah is 5 km north of Hornsby, the nearest major town centre. It is one of the most northerly suburbs of Sydney and is where the "Welcome to Sydney" sign is located. Mount Colah is the second highest suburb in Sydney by elevation. Considered one of Sydney's leafier suburbs, streets are clustered around the Pacific Highway. Mount Colah is bordered to the east by the Ku-ring-gai Chase National Park.

Mount Colah varies in altitude from 68 m to about 206-217 m above sea level.^[2][3]