silkstone postcode qldgu Home ›› Postcode Finder ›› QLDGU ›› Silkstone Silkstone local listingsThe suburb of Silkstone is located in QLD and has a postcode of 4304. Free silkstone business listing! 1Silkstone Baptist Community Kindergarten169 Blackstone Road 2Silkstone State SchoolMolloy St 07 32812001 View more business listings in silkstone Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.