Home Postcode finder SA Mosquito Hill Mosquito Hill postcode SA Mosquito Hill is a locality in South Australia covered by postcode 5214. Postcode 5214 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Mosquito Hill business listing Be the first listing in Mosquito Hill Common questionsWhat is the postcode for Mosquito Hill?Mosquito Hill, SA has the postcode 5214.What state is Mosquito Hill in?Mosquito Hill is in South Australia (SA).Does postcode 5214 cover more than one suburb?Yes. Postcode 5214 covers 8 localities, so the postcode alone does not identify Mosquito Hill. Browse other postcodes in South Australia, or widen the search to every Australian postcode.