The City of Blacktown is situated approximately 35km from Sydney, New South Wales, Australia on the Cumberland Plain in the heart of Western Sydney. It is bounded by the Local Government Areas (LGAs) of Penrith, Parramatta, Fairfield, Holroyd, Hawkesbury and Baulkham Hills. It occupies an area of 246.9 square kilometres. It is the most populous (271,709 - 2006) Local Government Area in New South Wales.
Blacktown was originally named for an Aboriginal settlement in the area. Today, Blacktown continues to be home to a large Aboriginal population, the largest of any suburb or township in New South Wales.
A school for Aborigines was moved in 1823 from Parramatta to the site where Richmond Road meets Rooty Hill Road North. The road from Prospect to Richmond became known as the Black Town Road. In 1860 the Railway Department gave the name of Black Town Road Station to the railway station at the junction of the railway and the Black Town Road, with the name shortening to Blacktown by 1862.
Acacia Gardens - Arndell Park - Bidwill - Blackett - Blacktown - Colebee - Dean Park - Dharruk - Doonside - Eastern Creek - Emerton - Glendenning - Glenwood - Hassall Grove - Hebersham - Huntingwood - Kellyville Ridge - Kings Langley - Kings Park - Lalor Park - Lethbridge Park - Marayong - Marsden Park - Minchinbury - Mount Druitt - Oakhurst - Parklea - Plumpton - Prospect - Quakers Hill - Riverstone - Ropes Crossing - Rouse Hill - Rooty Hill - Schofields - Seven Hills - Shalvey - Shanes Park - Stanhope Gardens - The Ponds - Toongabbie (part) - Tregear - Whalan - Willmot - Woodcroft
| Division | Member | Party affiliation | Elected |
|---|---|---|---|
| Chifley | Hon Roger Price | Labor | 1984 |
| Greenway | Louise Markus | Liberal | 2004 |
| Prospect | Chris Bowen | Labor | 2004 |
In the Legislative Assembly, the City of Blacktown encompasses all or parts of the following electorates:
| Division | Member | Party affiliation | Elected |
|---|---|---|---|
| Blacktown | Paul Gibson | Labor | 1999 |
| Londonderry | Allan Shearan | Labor | 2003 |
| Mount Druitt | Richard Amery | Labor | 1991 |
| Riverstone | John Aquilina | Labor | 1991 |
| Wentworthville | Pam Allan | Labor | 1988 - 1991, again since 1999 |

As of the 2007 social plan, the council has been divided into three regions
North (Glenwood, Stanhope Gardens, Kellyville Ridge, Rouse Hill, The Ponds, Riverstone, Schofields, Parklea, Marsden Park, Shanes Park, Colebee, Quakers Hill, Acacia Gardens, Vineyard)
East (Blacktown, Seven Hills, Toongabbie, Arndell Park, Kings Langley, Marayong, Kings Park, Huntingwood, Prospect, Doonside)
West (Plumpton, Willmot, Mt Druitt, Rooty Hill, Oakhurst, Tregear, Emerton, Dharruk, Hebersham, Glendenning, Dean Park, Whalan, Minchinbury, Bidwill, Blackett, Lethbridge Park
These regions will be used for social planning in the future.
The device features:
For a picture of the coat of arms see Council's website
Large scale urban development has contributed to Blacktown's continued population growth and to the development of new estate areas which has led to the establishment of 45 suburbs to date. Blacktown therefore encompasses a mix of older established areas and new developing areas.
Blacktown's diverse land use also continues to attract developers and retailers to the largest quantity of zoned and serviced industrial and commercial land throughout NSW.
Blacktown's Central Business District/City Centre provides residents with numerous shopping facilities and services and is the Commercial Centre for government departments and local business. This includes a court house, police station, shared State Government Office building, and the Westpoint shopping mall.
Blacktown City is youthful, with over half the population (117,179 persons or 50.5%) under 30 years of age. This age category increased by 4.4% between 1991-1996. But as it is youthful, it is also growing older, with a much higher increase in the 50 years and over population of 13.3% between 1991-1996.
The largest ethnic group is Filipino, which comes to 25% of Blacktown's population.
The City of Blacktown Council operate four libraries throughout the area, the central Max Webber Library located in the Blacktown CBD adjacent to Westpoint Shopping Centre. The other branches are at Lalor Park, Mt Druitt and Riverstone.
The Blacktown railway station is an interconecting station for the Countrylink services between Dubbo and the country terminal in the Sydney CBD.It is also a bus interchange utilised by Westbus and Busways transport operaters providing connection to local suburbs not directly linked by rail.
These private bus companies offer interconnection services between many of the railway stations within the City of Blacktown and beyond, extending the reach of public transport along the main road corridors of the Great Western Highway, Prospect Highway, Richmond Road, Windsor Road and other major roads throughout the area.
Cycling is being increasingly catered for throughout the city. The council has a published map showing over 65 km of existing cycleway (including some cycleways on shared roads), however there are extensive biking and walking tracks which are not included on that map 
Blacktown City Council proposes that by December 2006 there will be 125 km of cycleways assisting in providing safe bicycle access throughout the city. This does not include recreational cycleways such as those in the various parks and gardens throughout the area.
A total of eight creeks and tributaries form part of the two major catchments of the area including the Nepean Hawkesbury Catchment and the Upper Parramatta River Catchment.
Blacktown has one of the two remaining Drive-in Theatres in Sydney.
). The road from Prospect to Richmond became known as the Black Town Road. In 1860 the Railway Department gave the name of Black Town Road Station to the railway station at the junction of the railway and the Black Town Road, with the name shortening to Blacktown by 1862.Today, the City of Blacktown continues to be home to a large Aboriginal population; the largest Aboriginal population of any metropolitan local government area. It has a large population of recent migrants to Australia.
Blacktown is also the largest of any suburb or township in New South Wales.
It is the birthplace of actress Toni Collette.
The 2001 City of Blacktown Social Plan