Mesaio

Mesaio (Μεσαίο) is a village and a community of the Oraiokastro municipality. Before the 2011 local government reform it was part of the municipality of Kallithea, of which it was a municipal district. The 2021 census recorded 1,063 inhabitants in the community. The community of Mesaio covers an area of 27.896 km2.

Administrative division
The community of Mesaio consists of three separate settlements:
 * Mesaio (population 517 in 2021)
 * Monolofo (population 307)
 * Petroto (population 239)