This area was previously known as East Bankstown. When the first road went through the area, an acre of land was cleared for cultivation. The contrast to its surrounding area led to it being referred to as the 'Green Acre'. In 1909, Greenacre Park Estate became one of the first subdivisions in the area. Michael Ryan operated an inn called the Harp of Ould Erin on land he owned to the north of Liverpool Road.

At the 2011 census, there were 23,213 residents in Greenacre. The median age was 32 years old and 24.9% of the population was aged 14 years and under. Almost half of Greenacre residents were born outside of Australia, with top countries of birth being Lebanon 14.6% and Vietnam 2.3%. Three quarters of people spoke a language other than English at home. The most common languages spoken included Arabic 42.2%, Greek 4.0%, Vietnamese 3.0%, Italian 2.5% and Korean 2.4%. The top responses for religious affiliation were Islam, Catholic and Eastern Orthodox. The median household income of $959 was lower than the national figure of $1,234.

The suburb is distinctly but unofficially split into the north and the south. The southern parts of Greenacre are serviced by a strip of local independent shops and outlets along Waterloo Road and around the intersection of Juno Parade and Boronia Road. The northern parts of Greenacre are serviced by the Chullora amenities such as Chullora Market Place. The major shopping centres close by are Bankstown Central Shopping Centre and Westfield Burwood.

As the suburb is not connected to a railway station, but is serviced by various bus and coach services that operate along the main roads and various smaller roads. Buses operate to and from Strathfield station, Burwood station, Punchbowl station, Lakemba station and Bankstown station.

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Wikipedia