mypolonga postcode sa Home ›› Postcode Finder ›› SA ›› Mypolonga Mypolonga local listingsThe suburb of Mypolonga is located in SA and has a postcode of 5254. Free mypolonga business listing! 1Mypolonga Primary School40 William St 08 85354191 View more business listings in mypolonga Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.