Arcadia is a suburb of Sydney, New South Wales, Australia. It is in the Hornsby Shire Local Government Area. Its postcode is 2159. A very small suburb, whose only retail is the small cafe/local store Grumpy's. It is dominated by three roads- all of which connect with each other- Arcadia Road which leads to Bay Road (which drives into Berowra Waters) and Cobah Road. It's commerciality is mainly restricted to stables, 'pet nannies' and fruit produce.
