Plagiari () is a village and a community of the Thermi municipality. Before the 2011 local government reform it was part of the municipality of Mikra, of which it was a municipal district. The 2021 census recorded 5,091 inhabitants in the village. The community of Plagiari covers an area of 12.50 km<sup>2</sup>.
Plagiari is accessible from its main line,69,which passes into the town and has three stations inside of the town,as well as some others outside of it
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