Home Postcode finder VIC Seaford Seaford postcode VIC Seaford is a locality in Victoria covered by postcode 3198. Postcode 3198 State or territory Victoria (VIC) Region Frankston Add a free Seaford business listing More business listings in Seaford Businesses in Seaford Top Gear Motorcycles17 Hartnett Drive · (03) 9776 99913D Windows24 Sir Lawrence Drive · (03) 9786 0597Alpha Hospitality Australia13b Patrick Ct · 1300 656 221 Common questionsWhat is the postcode for Seaford?Seaford, VIC has the postcode 3198.What state is Seaford in?Seaford is in Victoria (VIC).Does postcode 3198 cover more than one suburb?Yes. Postcode 3198 covers 2 localities, so the postcode alone does not identify Seaford. Browse other postcodes in Victoria, or widen the search to every Australian postcode.