trentham postcode vic Home ›› Postcode Finder ›› VIC ›› Trentham Trentham local listingsThe suburb of Trentham is located in VIC and has a postcode of 3458. Free trentham business listing! 1Trentham and District Primary SchoolBridge St 03 54241364 View more business listings in trentham Search and find other Postcodes in Victoria or widen the search to Postcodes in Australia.