Yalova Province (Turkish: Yalova ili) is a province in northwestern Turkey, on the eastern coast of the Sea of Marmara. Its adjacent provinces are Bursa to the south and Kocaeli to the east. The provincial capital is the city of Yalova. The population of the Yalova Province is 203,741 (as of 2010). Prior to 1995, Yalova constituted a district of the Istanbul Province and prior to 1930 constituted the district of the Kocaeli Province.