Esenyurt, formerly known as Ksenos, is a municipality and district of Istanbul Province, Turkey. Its area is 43 km², and its population is 98…Esenyurt, formerly known as Ksenos, is a municipality and district of Istanbul Province, Turkey. Its area is 43 km², and its population is 983,571. Located in the European side of Istanbul, Esenyurt borders with Avcılar and Lake Küçükçekmece on the east, Büyükçekmece on the west, Başakşehir, Arnavutköy and TEM road on the north and Beylikdüzü and E-5 motorway on the south.