Àtụ:Infobox pageant titleholder Atong Demach bụ nwanyị South Sudan na- azụ ahịa na ezenwanyi mma . Ọ meriri Miss World South Sudan 2011 a ma mesịa kpuo ya okpueze dị ka Miss World Africa na onye nke ato na Miss World nke mere na Ordos, China . Nwanyị South Sudan bụ onye nnọchi anya South Sudan mbụ na Miss World na onye mbụ meriri aha Miss World Africa . Ọ na-arụ ọrụ ugbu a dịka onye nnọchi anya gọọmentị South Sudan maka ọdịbendị na onye ndụmọdụ mmekọrịta ọha na eze na gọọmentị Japan. A mụrụ Demach n'isi obodo Upper Nile steeti Malakal ma kwaga na Khartoum n'oge ọ bụ nwata. Ọ bụ nwa ikpeazụ nke Ajak Demach nwụrụ anwụ na Yar Kuol Tiir. Nna ya Ajak Demach bụ onye ndọrọ ndọrọ ọchịchị na South Sudan. Ọ bụ onye minista, Onye isi oche ọgbakọ, onye isi oche kọmitii referendum South Sudan Jonglei steeti (n'oge ntuli aka South Sudan nke mechara mee ka South Sudan nwee nnwere onwe na 2011) onye ndụmọdụ ndọrọ ndọrọ ọchịchị na onye isi oche nke iwu nyocha nke steeti Jonglei ruo mgbe ọ nwụrụ na 2013.