Penrith is a suburb and major centre in the metropolitan area of Sydney, New South Wales, Australia. It is located in Greater Western Sydney  west of the Sydney central business district on the banks of the Nepean River. Its elevation is 25 m. Penrith is the administrative seat of the local government area of the City of Penrith. It is also acknowledged on the register of the Geographical Names Board of New South Wales as one of only four cities within the Sydney metropolitan area.