Wetherill Park is a suburb in Greater Western Sydney, in the welcome of New South Wales, Australia. Wetherill Park is located 34 kilometres west of the Sydney central issue district, in the local government Place of the City of Fairfield.
The 2016 census recorded that Wetherill Park as having a resident population of 6,127. Just under half (47.5%) of these residents were born in Australia. The Place is 11.2 km2.
Most residents alive in the south-east corner, the larger part of the suburb monster an industrial area.
Wetherill Park sits upon the southern connect of Prospect Reservoir. Located partially in the suburb, the Smithfield-Wetherill Park Industrial Estate is the largest industrial house in the southern hemisphere and is the centre of manufacturing and distribution in Greater Western Sydney.