caltowie-north postcode sa Home ›› Postcode Finder ›› SA ›› Caltowie-North Caltowie North local listingsThe suburb of Caltowie North is located in SA and has a postcode of 5490. Free caltowie north business listing! Get the first free listing in caltowie north! Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.