A southern part of Llandilo was incorporated into an expansion of the suburb of Jordan Springs on 22 November 2019.

Prior to European settlement, what is now Llandilo was home to the Mulgoa people who spoke the Darug language.

They hunted kangaroos and emus for meat, and gathered yams, berries and other native plants.

Shortly after the arrival of the First Fleet in Australia in 1788, an outbreak of smallpox decimated the local indigenous communities and made it easier for settlers to dispossess them of their land.

While the landholdings have reduced in size down to around one or 2 acres (8,100 m2), the area is still primarily rural as it has been for the past 200 years or so.