Glenwood takes its name from an historic property in the area, named 'Glenwood Park' in the 1940s, but previously known as Norfolk Vale, and Sorrento. It was formally recognised as a suburb in 1996. It is noted as the first site to be developed within the Rouse Hill Development area.
At the 2011 census, there were 15,325 residents in Glenwood. The population was younger than average, with a median age of 32, and 26.6% of people aged 14 years and under. Just over half of people were born in Australia, with the top other countries of birth being India 29.5%, Philippines 5.1% and Sri Lanka 2.5%. Almost half of residents spoke a language other than English at home. These languages included Punjabi 6.7%, Hindi 5.4% and Tagalog 3.1%. Most dwellings were separate houses and these tended to be large, with 81.6% having 4 or more bedrooms. In the 2016 Census, there were 16,130 residents in Glenwood. The median age of the population was 34, younger than the median age for New South Wales and Australia. 23.2% of the people were 14 years and under. 51% of Glenwood's residents were born in Australia, 33.5% were born in India, 4.8% were born in the Philippines, 2.8% in Sri Lanka, 2% in China and 1.9% in Fiji. Only English was spoken in 50.1% of the homes but other languages spoken at home included Punjabi 9.5%, Hindi 5.6%, Tagalog 2.9%, Mandarin 2.6% and Sinhalese 2.1%.
Transport
The Westlink M7 Motorway runs along the southern border of the suburb and provides a link to the M2 Hills Motorway. Old Windsor Road borders the suburb to the east & Sunnyholt Rd borders the suburb to the west & north. Glenwood is served by and stations on the Sydney Metro Northwest, with high frequency services to, and. Metroconnect by Hillsbus provides an on demand bus service connecting Glenwood with Bella Vista, Norwest and stations. Hillsbus provides services to Rouse Hill 663, 664, 665,Parramatta, North Sydney and Sydney CBD whilst Busways provides regular services to Norwest Business Park, Blacktown, Bella Vista and Castle Hill. The suburb is serviced by Burns and Sorrento stations on the Blacktown-Parklea branch of the North-West T-way, and Burns, Balmoral, Celebration, Meurants and Norbrik stations on the Rouse Hill-Parramatta section of the T-way.
Valentine Sport Park, at which the headquarters of Football NSW are located, in Glenwood is a multipurpose sporting complex which caters for various groups, as well as individuals.
