Kellyville is a suburb of Greater Western Sydney, . 36 Kilometres north-west of the CBD. It is part of the Hills District region.
Kellyville Village features a Coles supermarket and 38 speciality stores with services, groceries and fashion. The centre and Woolworths supermarket next door both opened in 2003. Other shopping needs are met by the various shops located on a light commercial strip in an area known as 'The Village' on Windsor Road, Kellyville. Kellyville Pets, on Windsor Road, is a large and diverse pet store.
In 2014, an Aldi supermarket opened on land next door to Kellyville Village on Wrights Road. In 2015, an expansion of Kellyville Village opened with a larger Coles Megastore, First Choice Liquor, Kmart Tyre & Auto Service, and an additional 16 speciality stores.
The newly opened North Kellyville Square located on the corner of Withers and Hezlett Roads to the north of the suburb provides a Woolworths and specialty stores to the area which is booming in population.
Kellyville possesses a combination of semi-rural, older suburban and modern residences offering a variety of lifestyles, spanning from medium-density townhouse developments along Kellyville Shopping Plaza to opulent residences sited adjacent to natural creeks and bushlands. As a result of the suburb's strategic location, Kellyville offers a relaxed and quiet lifestyle being surrounded by rural areas and suburban Castle Hill, Bauljham Hills and Glenhaven.
At the 2011 census ,10.3% of employed people travelled to work on public transport and 72.1% by car (either as driver or as passenger).
Transport to Parramatta by bus in the far-western side of Kellyville has been improved through the development of the bus-only North- West T-Way, which runs parallel with Old Windsor Road.
The Metro North West Line connects the Hillls District to Chatswood. It is planned to extend the line from Chatswood to the City and the Bankstown Line with a dedicated new harbor tunnel crossing, planned to open in 2024.