Ierissos is the oldest and biggest village of the Municipality with 3118 residents, It is the continuance of Ancient Akanthos, colony of Andrious since 7th century- a quite important city of Macedonia as referred from historians and as proved from the archaeological studies.
Its residents mostly work with fishing, tourism, and processing. During the last years they developed significantly their professional relations with Mount Athos. It is an important port in North Greece with a big fishing fleet, and famous fish quality all over Greece.
Its beaches and night entertainment make Ierissos ideal for summer vacations. The remarkable social and cultural activities of its residents come from the depth of centuries. A living sample is the folklore songs which remain alive and being sung until nowadays.