underdale postcode sa Home ›› Postcode Finder ›› SA ›› Underdale Underdale local listingsThe suburb of Underdale is located in SA and has a postcode of 5032. Free underdale business listing! 1Underdale High School19 Garden Terrace 08 830180002Wallcann Pty Ltd147-149 Holbrooks Road 1300 799 4553Benchmark Education SolutionsUnderdale SA, Australia +61451885945 View more business listings in underdale Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.