Glenfield is located 36 kilometres south-west of the Sydney central business district, in the local government area of the City of Campbelltown and is part of the Macarthur region.

Glenfield was named after the property founded by early colonial surgeon and explorer, Charles Throsby.

According to local authorities and Campbelltown City Library, the property was named after the Glenfield in Leicestershire, England, where Throsby was born and brought up.

[2] The name was first used when Glenfield railway station was built in 1869 although a village didn't begin to develop until 1881 when the first subdivision of the paddocks were marketed.

The incident was made into the movie Mr Reliable starring Colin Friels and Jacqueline McKenzie.