Şile is a small town on the Black Sea, 70 km from the city of Istanbul, Turkey. Şile is a municipality and is the center of the eponym district of Istanbul. According to the 2007 census, the population of the district was 25,169, of which 9,831 lived in the city of Şile, 2,096 in the nearby town of Ağva (Yeşilçay) and 13,242 in surrounding villages. However, between June and September, the population rapidly increases because of the many residents of Istanbul who have summer houses in Şile.