The Municipality of Iolkos is a municipality of the prefecture of Magnesia. It is located in the eastern part of the prefecture, on the slopes of Mount Pelion, north of the Volos town complex with which it is connected. The municipality consists of 3 municipal districts, occupies an area of 1.1 square kilometers. and has a total population of 2.071 inhabitants. The seat of the municipality is Anakassia.

The municipality includes the following municipal districts and settlements:

Δ.Δ. Ano Volos [632]
Ano Volos [529]
the Iolkos [103]

Δ.Δ. Agios Onoufrios - Agios Onoufrios [506]

Δ.Δ. Anakasia - Anakasia [933]