Home Postcodes by state SA Mount Observation Mount Observation postcode SA Mount Observation is a locality in South Australia covered by postcode 5255. Postcode 5255 State or territory South Australia (SA) Region Sa Subs Near 2 Council area Alexandrina Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Mount Observation business listing Be the first listing in Mount Observation Suburbs near Mount ObservationStraight-line distance between locality centres.TooperangSA 5255 · 4.0 kmNangkitaSA 5210 · 5.1 kmAshbourneSA 5157 · 6.8 kmMount MagnificentSA 5210 · 7.1 kmFinnissSA 5255 · 8.2 kmKuitpo ColonySA 5172 · 8.5 kmMcharg CreekSA 5157 · 8.7 kmSandergroveSA 5255 · 9.5 kmMosquito HillSA 5214 · 9.5 kmKyeemaSA 5172 · 11.1 kmYundiSA 5172 · 11.1 kmBlackfellows CreekSA 5201 · 11.3 kmDistances to every suburb around Mount Observation Also in postcode 5255Angas PlainsSA 5255BelvidereSA 5255BletchleySA 5255FinnissSA 5255GemmellsSA 5255HartleySA 5255Highland ValleySA 5255Lake PlainsSA 5255Langhorne CreekSA 5255MulgundawaSA 5255NalpaSA 5255Red CreekSA 5255SalemSA 5255SandergroveSA 5255StrathalbynSA 5255TooperangSA 5255WillyarooSA 5255WoodchesterSA 5255 Other places called Mount ObservationMount ObservationWA 6302 Common questionsWhat is the postcode for Mount Observation?Mount Observation, SA has the postcode 5255.What state is Mount Observation in?Mount Observation is in South Australia (SA).What council is Mount Observation in?Mount Observation is in the Alexandrina local government area.Does postcode 5255 cover more than one suburb?Yes. Postcode 5255 covers 19 localities, so the postcode alone does not identify Mount Observation.What suburbs are near Mount Observation?The closest are Tooperang (4.0 km), Nangkita (5.1 km), Ashbourne (6.8 km), Mount Magnificent (7.1 km) and Finniss (8.2 km). Distances are straight lines between locality centres. Browse other postcodes in South Australia, or widen the search to every Australian postcode.