The municipality has a population of 8,013 (31 December 2024)[2] and covers an area of 773.69 square kilometres (298.72 sq mi) of which 23.68 km2 (9.14 sq mi) is water.

[1] The population density is 10.68 inhabitants per square kilometre (27.7/sq mi).

The neighbouring municipality of Karinainen was merged into Pöytyä in the beginning of 2005.

The neighbouring municipality of Yläne was merged into Pöytyä in the beginning of 2009.

Pöytyä's neighbouring municipalities are Aura, Eura, Lieto, Loimaa, Marttila, Mynämäki, Oripää and Säkylä.