Home Postcode finder NSW Old Guildford Old Guildford postcode NSW Old Guildford is a locality in New South Wales covered by postcode 2161. Postcode 2161 State or territory New South Wales (NSW) Region Leightonfield Add a free Old Guildford business listing More business listings in Old Guildford Businesses in Old GuildfordFahme Civil ConcretingOld Guildford NSW 2161, Australia · 0404500542 Common questionsWhat is the postcode for Old Guildford?Old Guildford, NSW has the postcode 2161.What state is Old Guildford in?Old Guildford is in New South Wales (NSW).Does postcode 2161 cover more than one suburb?Yes. Postcode 2161 covers 4 localities, so the postcode alone does not identify Old Guildford. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.