It is situated in the barony of Owney and Arra. It is located approximately 8 km from Birdhill and 16 km from Limerick. The Newport River, a tributary of the Mulcair (or Mulkear) River, flows through the middle of the town. Newport is nestled in the Silvermine mountain range. It is close to Lough Derg and the villages of Murroe, Killaloe and Ballina.