Agnes Banks is a suburb of Sydney, in the state of New South Wales, Australia. Agnes Banks is 68 kilometres west of the Sydney central business district, in the local government areas of the City of Penrith and City of Hawkesbury. It is part of the Greater Western Sydney region.
Agnes Banks is connected to Penrith by Castlereagh Road which runs alongside the Nepean River between Richmond and Penrith. Natural woodlands and sandy deposits make up the higher landscape of this suburb. Agnes Banks is a rural outpost of the City of Penrith which has kept its intrinsic agricultural value and rural lifestyle.