Home Postcode finder VIC Horsham Horsham postcode VIC Horsham is a locality in Victoria covered by postcode 3400. Postcode 3400 State or territory Victoria (VIC) Region Vic Far Country Add a free Horsham business listing More business listings in Horsham Businesses in HorshamAustralian Relief Management 42 Dimboola Rd · 1300735433HORSHAM BETTA HOME LIVING156 Firebrace Street, Horsham VIC 3400, Australia · 0353812207Horsham College59 Dimboola Rd · 03 53820499 Common questionsWhat is the postcode for Horsham?Horsham, VIC has the postcode 3400.What state is Horsham in?Horsham is in Victoria (VIC).Does postcode 3400 cover more than one suburb?Yes. Postcode 3400 covers 2 localities, so the postcode alone does not identify Horsham. Browse other postcodes in Victoria, or widen the search to every Australian postcode.