The City of Penrith is a local government area in the state of New South Wales, Australia. The seat of the city is located in Penrith, located about west of Sydney's central business district. It occupies part of the traditional lands of the Darug people. First incorporated as a municipality on 12 May 1871, on 1 January 1949, the municipalities of Penrith, St Marys and Castlereagh and part of the Nepean Shire amalgamated to form a new Municipality of Penrith. Penrith was declared a City on 21 October 1959, and expanded westwards to include Emu Plains and Emu Heights, formerly part of the City of Blue Mountains, on 25 October 1963. As at the the City of Penrith had an estimated population of 196,066. The Mayor of the City of Penrith is Cr. Tricia Hitchen, a member of the Liberal Party. Suburbs and localities in the local government area The following suburbs and localities are located within the City of Penrith: Council history The Municipality of Penrith was incorporated on 12 May 1871 under the . On 3 March 1890, St Marys was separately incorporated, and on 26 July 1893 and 9 September 1895, Mulgoa and Castlereagh followed respectively. In 1913, Mulgoa became the "A" Riding of the neighbouring Nepean Shire. On 1 January 1949, under the Local Government (Areas) Act 1948, the Municipalities of Penrith, St Marys and Castlereagh and A Riding of the Nepean Shire amalgamated to form a new Municipality of Penrith. It was declared a City on 21 October 1959, and expanded westwards to include Emu Plains and Emu Heights, formerly part of the City of Blue Mountains, on 25 October 1963. Demographics At the 2016 census, there were 196,066 people in the Penrith local government area, of these 49.4% were male and 50.6% were female. Aboriginal and Torres Strait Islander people made up 3.9% of the population; notably above the national average of 2.8%. The median age of people in the City of Penrith was 34 years; notably below the national median of 38 years. Children aged 0 – 14 years made up 21.06% of the population and people aged 65 years and over made up 11.69% of the population. Of people in the area aged 15 years and over, 47.3% were married and 12.3% were either divorced or separated. Population growth in the City of Penrith between the 2001 Census and the was 0.15%