It is on the Istanbul-Tekirdag (E-84) highway route, 38 km from Tekirdag center and 90 km from Istanbul. It is surrounded by the Silivri district of Istanbul province to the east, the Corlu district to the west and north, and the Marmara Sea to the south.

The district has a surface area of ​​183 km² and, apart from very small elevations, it does not have a mountainous or forested land structure. The district land consists generally of arable land. There is Turkmenli Reservoir in the northwest of the district, which was opened to operation by the DSI for irrigation purposes in 2001. Although there are no major rivers, the Baglar Creek in the west, the Kamaradere Creek in the east, and the Kinikli Creek in the Sultankoy neighborhood, which are described as streams, flow into the Marmara Sea.

There is a 32 km long coastline from the district, 21 km in the direction of Tekirdag and 11 km in the direction of Istanbul. In some regions, there is a sandy coastal structure that can be considered a beach, and partly coastal elevations that can be considered "cliffs". In terms of its geological structure, which is known to be of importance in the physical structuring of the district, the coastal part is in a 1st degree earthquake zone, and the inland parts are in a 2nd degree earthquake zone.

There is a small-scale fishing harbor in the district center.

The average altitude of the district center is 1 m.

The district climate is mild and rainy in winters and hot in summers. The average annual temperature is 13.9 degrees. The hottest month is August with 23.9 degrees, and the coldest month is January with 5.0 degrees.

The total annual precipitation is 485 mm. The least precipitation is in August with 2.6 mm, and the rainiest month is December with 87 mm.