Since the 2011 local government reform it is part of the municipality Archaia Olympia, of which it is a municipal unit.

[3] Its seat of administration was the village Antroni.

Lasiona is situated in a mountainous area on the border with Achaea, 20 km north of Olympia, 27 km northeast of Pyrgos and 50 km south of Patras.

The Greek National Road 33 (Patras - Tripoli) passes through the municipal unit.

Media related to Lasiona, Elis at Wikimedia Commons