Glen Forrest's postcode is 6071. Glen Forrest is a
suburb of South Western, Western Australia and is
about 23 kms east-northeast of WA's capital city of
Perth. In the 2011 Australian census the population
of Glen Forrest was 2,883 when there were 1,447
Females and 1,436 Males living there.
Glen Forrest is a suburb within the Shire of
Mundaring, south of John Forrest National Park,
west of Mahogany Creek, east of Darlington, and
north of the Helena River. Its northern boundary is
determined by the Great Eastern Highway.