Thanh Hóa (listen) is a province in the North Central Coast region of Vietnam. Its capital and largest city is Thanh Hóa with a population of 176,400. The province has a seaside resort called Sầm Sơn, which is situated about 15 km from the provincial capital. The largest towns are Bỉm Sơn (pop. 53,000) and Sầm Sơn (pop. 52,000).