Apollonia is an ancient town (former Apollonia in Mygdonia

Apollonia (Mygdonia)

For other uses, see ApolloniaApollonia was a town of Mygdonia in Macedon, south of Lake Bolbe , and north of the Chalcidian mountains, on the road from Thessalonica to Amphipolis, as we learn from the Acts of the Apostles and the Itineraries. For other uses, see ApolloniaApollonia (Greek: ) was a...

) and a former municipality in the Thessaloniki regional unit, Greece

Greece

Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

. Since the 2011 local government reform it is part of the municipality Volvi

Volvi (municipality)

Volvi is a municipality in the Thessaloniki regional unit, Central Macedonia, Greece. The seat of the municipality is the town Stavros. It was named after Lake Volvi.-Municipality:...

, of which it is a municipal unit. It is located along the Via Egnatia

Via Egnatia

The Via Egnatia was a road constructed by the Romans in the 2nd century BC. It crossed the Roman provinces of Illyricum, Macedonia, and Thrace, running through territory that is now part of modern Albania, the Republic of Macedonia, Greece, and European Turkey.Starting at Dyrrachium on the...

 in Macedonia

Macedonia (Greece)

Macedonia is a geographical and historical region of Greece in Southern Europe. Macedonia is the largest and second most populous Greek region...

, about midway between Thessaloniki

Thessaloniki

Thessaloniki , historically also known as Thessalonica, Salonika or Salonica, is the second-largest city in Greece and the capital of the region of Central Macedonia as well as the capital of the Decentralized Administration of Macedonia and Thrace...

 and Amphipolis

Amphipolis

Amphipolis was an ancient Greek city in the region once inhabited by the Edoni people in the present-day region of Central Macedonia. It was built on a raised plateau overlooking the east bank of the river Strymon where it emerged from Lake Cercinitis, about 3 m. from the Aegean Sea. Founded in...

. The municipal unit Apollonia had 4,137 inhabitants as of 2001.