Bella Vista is located 33 kilometres north-west of the Sydney central business district and is part of The Hills Shire. It is a suburb in the Hills District of Greater Western Sydney and is in the state of New South Wales, Australia. Bella Vista’s Norwest Business Park is home to several Fortune 500 companies, a number of shopping centres, high-rise buildings, and industrial and recreational spaces.

According to the 2021 census, there were 8,384 residents in Bella Vista. 48.4% of residents were born in Australia. The other most common countries of birth were, India 10.7%, China 8.7%, Sri Lanka 4.5%, the Philippines 2.1% and England 1.9%. 43.7% of residents spoke only English at home. Other languages spoken at home included Mandarin 12.1%, Hindi 5.1%, Tamil 4.7%, Cantonese 4.3% and Punjabi 4.1%. The most common responses for religious affiliation were No Religion 23.2%, Catholic 21.1%, Hinduism 15.6%, and Islam 5.4%.

A major factor in the recent growth of Bella Vista has been its prime location near the end of the Sydney M2 motorway. The motorway (opened in 1997) means that in very good traffic conditions it takes just over half an hour to get from Bella Vista to the CBD. This also puts Bella Vista close to two major north–south transport routes through Sydney, the Cumberland Highway and the Westlink M7.