Tekirdag is one of three provinces in northwestern Turkiye, located entirely within Thrace and north of the Marmara Sea. It is also one of six provinces in Turkiye with coastlines on two seas. Tekirdag lies between 41º 34' 52" - 40º 52' 53" - 41º 35' 28" – 40º 32' 23" north latitudes and 28º 09' 14" - 26º 42' 42" – 28º 08' 34" – 26º 54' 24" east longitudes. The province covers an area of ​​6,313 km² and its elevation above sea level ranges from 0 to 200 meters. It is surrounded by Silivri and Catalca districts of Istanbul to the east, Vize, Luleburgaz, Babaeski and Pehlivankoy districts of Kirklareli to the north, and the Marmara Sea and Gelibolu district of Canakkale to the south.