Irakleia (, before 1926: Τζουμαγιά - Tzoumagia ) is a municipality in the Serres regional unit, Central Macedonia, Greece. Population 21,145 (2011). The seat of the municipality is the town of Irakleia, which was formerly known as "Lower Jumaya" (in or Cuma-i Zir ("Lower Juma" in Ottoman Turkish); in, Dolna Dzhumaya; and in ). "Upper Dzhumaya" is modern Blagoevgrad, located in Bulgaria. In the Serres area, Aromanians settled in modern Irakleia during Ottoman times. Some Aromanians still live in the city today, with Bulgarian researcher Vasil Kanchov even saying that, as of when he visited the town, the 1250 Aromanians in Irakleia "were the wealthiest of all inhabitants".

Municipality

The municipality Irakleia was formed at the 2011 local government reform by the merger of the following 3 former municipalities, that became municipal units: The municipality has an area of 451.499 km2, and the municipal unit 195.216 km2. The municipal unit of Irakleia consists of the communities Chrysochorafa, Dasochori, Irakleia, Karperi, Koimisi, Limnochori, Lithotopos, Pontismeno and Valtero.