carroll postcode nswdl Home ›› Postcode Finder ›› NSWDL ›› Carroll Carroll local listingsThe suburb of Carroll is located in NSW and has a postcode of 2340. Free carroll business listing! 1Carroll Public SchoolDavid St 02 67431722 View more business listings in carroll Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.