Lalor Park is located 35 kilometres (22 mi) west of the Sydney central business district in the local government area of the City of Blacktown.

Although the suburb is primarily residential there is a significant retail shopping precinct with about thirty shops including a newsagents, pharmacy and a small supermarket located at the junction of Northcott Road and Freeman Street.

Home ground for the Kookaburras is Cavanagh Reserve (Venn Ave, Lalor Park).

Lalor Park juniors that have played 1st grade in Australia include Mick Delroy, Feleti Mateo and Jorge Taufua and Brett Delaney.

The suburb is served by the Blacktown-Parklea branch of the North-West T-way and Sydney Trains Seven Hills railway station.