penwortham postcode sa Home ›› Postcode Finder ›› SA ›› Penwortham Penwortham local listingsThe suburb of Penwortham is located in SA and has a postcode of 5453. Free penwortham business listing! Get the first free listing in penwortham! Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.