The town is surrounded by Bandırma in the northeast, Biga and Yenice in the west, Marmara Sea and Gulf of Erdek and Balya in the south.

Elevation is 33 metres (108 ft) above sea level.Green Gönen The oldest known name of the town is Asepsus (Ασεψούς in Ancient greek).

Research shows that the subsequent name was Artemea (Αρτεμέα), a derivation of the Greek goddess Artemis.

Widely accepted possibilities are: Also, some sources indicate that there was a nomadic tribe of the "Yörükan community" bearing the name "Gönen","Gönan" or "Gönenlü".

According to Evliya Çelebi's Seyahatname (In which he collected the notes of his journeys), Gönen was used by the governors of Bursa as a summer holiday location, where they enjoyed the therapeutic uses of the hot springs.