 Kosmas is situated in the southeastern part of the Parnon mountains, at about 1150 m elevation, on the road from Skala (Laconia) to Leonidio.It is 13 km southwest of Leonidio, 28 km east of Sparti, 28 km northeast of Skala, 35 km south of Argos and 57 km southeast of Tripoli.Kosmas has a school, a church and a library.