toowoomba postcode qldbi Home ›› Postcode Finder ›› QLDBI ›› Toowoomba Toowoomba local listingsThe suburb of Toowoomba is located in QLD and has a postcode of 4350. Free toowoomba business listing! 1The Glennie SchoolHerries St 07 468888882Downlands Sacred Heart College72 Ruthven St 07 469095003St Joseph's College54 James St 07 46318500 View more business listings in toowoomba Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.