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Chalkeia (Greek: Χάλκεια) is a former municipality in Aetolia-Acarnania, West Greece, Greece. Since the 2011 local government reform it is part of the municipality Nafpaktia, of which it is a municipal unit. The municipal unit has an area of 114.189 km2. Population 2,397 (2011). The seat of the municipality was in Trikorfo.