Trewilga is a bounded rural locality in Parkes Shire, within the Central West region of New South Wales, Australia.

[15] However, the village itself was not officially renamed Trewilga, until 1913,[17] in time for the opening of its new railway station in 1914.

[18] Some land was sold to the west of the original village, just east of the new railway station.

[28] By 1926, Trewilga's days as a mining village seemed to be over and it was described as "just a small place consisting of a Post and Telegraph Office, a few private residences and a tennis court, Public School, Hall, and English Church".

[29] During the First World War, an estate known as 'Harvey Park', three miles from Trewilga railway station—in the neighbouring County of Kennedy—was sub-divided into 22 farms as part of the Soldier Settlement program.

[14][35] The modern-day Newell Highway now bypasses the site of the old village and it instead runs closer to the alignment of the Parkes-Narrowmine railway line,[35] near to where the old Trewilga station once stood.