Bailup's postcode is 6082. Bailup is a Western
Australian locality and rural residential estate
located 62 kilometres (39 mi) north-east of the
state capital, Perth, along Toodyay Road. The
Bailup area is split between the Shire of Toodyay
and Shire of Mundaring, the latter of which
contains most of the land area.
Most of Bailup is covered in open Jarrah, marri
and wandoo woodland, with some areas of dense
understorey vegetation.