Palaiochouni
Palaiochouni is a village in the municipal unit Valtetsi, Arcadia, Greece. It is situated in the hills on the eastern end of the plain of Megalopoli, at 700 m elevation. It is 2 km east of Mallota, 3 km west of Athinaio, 7 km east of Megalopoli and 19 km southwest of Tripoli. The Greek National Road 7 passes through the village.
Population
| Year | Population |
| 1981 | 85 |
| 1991 | 41 |
| 2001 | 42 |
| 2011 | 24 |
| 2021 | 16 |