holbrook postcode nswdl Home ›› Postcode Finder ›› NSWDL ›› Holbrook Holbrook local listingsThe suburb of Holbrook is located in NSW and has a postcode of 2644. Free holbrook business listing! 1Holbrook Public School146 Albury St 02 603620212St Patrick's Primary SchoolAlbury St 02 60362288 View more business listings in holbrook Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.