[3] Pinjarra is an area rich in history, and is the home town of a former State Premier - Sir Ross McLarty.

The name was often shown spelt "Pinjarrup" on early maps, while the accepted spelling for many years was "Pinjarrah".

[8] A British child migration scheme run by Kingsley Fairbridge established a farm school in the area in the early 1900s.

The author Kenneth (Seaforth) McKenzie grew up in Pinjarra, and parts of his experiences as a child living near the Murray River are found in his first novel The Young Desire It.

In 1974, an alumina refinery was established by Alcoa Australia Ltd, causing a boost in the population of Pinjarra and nearby Mandurah.

[9] Because of its close proximity to Mandurah and recent infrastructure and amenities investments, Pinjarra's population is likely to increase significantly through new subdivisions surrounding the original town-site.

Pinjarra station is located on the South Western Railway and served by Transwa's twice daily Australind service from Perth to Bunbury.