Gush Dan or Tel Aviv metropolitan area is a conurbation in Israel, located along the country's Mediterranean coastline. There is no single formal definition of Gush Dan, though the term is in frequent use by both governmental bodies and the general public. It ranges from combining Tel Aviv with cities that form an urban continuum with it, to the entire areas from both the Tel Aviv District and the Central District, or sometimes the whole Metropolitan Area of Tel Aviv, which includes a small part of the Southern District as well. Gush Dan is the largest conurbation and metropolitan area in Israel, with the metropolitan area having an estimated population of 4,156,900 residents, 89% of whom are Israeli Jews.

Israeli coastal plain is the Israeli segment of the Levantine coastal plain of the Mediterranean Sea, extending 187 kilometres (116 mi) north to south. It is a geographical region defined morphologically by the sea, in terms of topography and soil, and also in its climate, flora and fauna. It is narrow in the north and broadens considerably towards the south, and is continuous, except the short section where Mount Carmel reaches almost all the way to the sea. The Coastal Plain is bordered to the east by – north to south – the topographically higher regions of the Galilee, the low and flat Jezreel Valley, the Carmel range, the mountains of Samaria, the hill country of Judea known as the Shephelah, and the Negev Mountains in the south. To the north it is separated from the coastal plain of Lebanon by the cliffs of Rosh HaNikra, which jut out into the sea from the Galilee mountains, but to the south it continues into the Egyptian Sinai Peninsula.