▁Geography ▁D ix ▁is ▁located ▁in ▁northern ▁Jefferson ▁County ▁at ▁ ▁( 3 8 . 4 4 0 6 7 6 , ▁- 8 8 . 9 4 2 4 6 3 ). ▁Illinois ▁Route ▁ 3 7 ▁is ▁the ▁village ' s ▁Main ▁Street , ▁leading ▁south ▁ ▁to ▁Mount ▁Vern on , ▁the ▁county ▁seat , ▁and ▁north ▁ ▁to ▁S alem . ▁Inter state ▁ 5 7 ▁passes ▁through ▁the ▁western ▁side ▁of ▁the ▁village , ▁with ▁access ▁from ▁Exit ▁ 1 0 3 . ▁I - 5 7 ▁leads ▁south ▁ ▁to ▁Inter state ▁ 6 4 ▁at ▁Mount ▁Vern on ▁and ▁north ▁ ▁to ▁Inter state ▁ 7 0 ▁at ▁E ff ingham . ▁ ▁According ▁to ▁the ▁ 2 0 1 0 ▁census , ▁D ix ▁has ▁a ▁total ▁area ▁of ▁, ▁of ▁which ▁ ▁( or ▁ 9 9 . 5 2 %) ▁is ▁land ▁and ▁ ▁( or ▁ 0 . 4 8 %) ▁is ▁water . ▁D ix ▁is ▁located ▁on ▁high ▁ground ▁that ▁marks ▁the ▁boundary ▁between ▁the ▁Big ▁M ud dy ▁River ▁and ▁its ▁trib ut ary , ▁Case y ▁Creek . ▁ ▁Today ▁D ix ▁is ▁an ▁exit ▁on ▁Inter state ▁ 5 7 , ▁a ▁major ▁north / s outh ▁road way . ▁When ▁it ▁was ▁founded , ▁however , ▁it ▁was ▁on ▁the ▁G os hen ▁Road , ▁which ▁was ▁the ▁main ▁east / west ▁road ▁in ▁Illinois , ▁running ▁from ▁Old ▁Shaw ne et own ▁on ▁the ▁Ohio