| Year | Communal population | Change (town) |
|---|---|---|
| 1981 | 1,134 | - |
| 1991 | 1,181 | 47/4.14% |
| 2001 | 1,356 (municipal district), 1,250 (town) | ---> |
Varvasena has a school, a lyceum, a gymnasium, a church, a post office, a train station (Patras - Kato Achaia - Lechaina - Amaliada - Pyrgos - Olympia), and a square (plateia).
The Enipeas river is situated 2.5 km from Varvasena.
The population was 62 in 1991 and risen to 106 in 2001.
Kato Varvasena (Κάτω Βαρβάσαινα), a settlement of Varvasena is located not far from Varvasena in the southwest.
The area has farms situated mainly in the south and the central part with a few forests especially situated next to the new highway. Hills with forests and some grasses are in the north, the west and around the valley. The Alpheus river is to the south.
The area has some morphological scarps in the semi-mountainous areas and west of the Cheimadi plain.