blenheim postcode qldga Home ›› Postcode Finder ›› QLDGA ›› Blenheim Blenheim local listingsThe suburb of Blenheim is located in QLD and has a postcode of 4341. Free blenheim business listing! 1Blenheim State School77 Blenheim Rd 07 54664265 View more business listings in blenheim Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.