ouyen postcode vicbu Home ›› Postcode Finder ›› VICBU ›› Ouyen Ouyen local listingsThe suburb of Ouyen is located in VIC and has a postcode of 3490. Free ouyen business listing! 1Ouyen Primary SchoolHunt St 03 509211612Ouyen Secondary CollegeFuller St 03 50921182 View more business listings in ouyen Search and find other Postcodes in Victoria or widen the search to Postcodes in Australia.