Prachuap Khiri Khan is located some 281 kilometres south of Bangkok. After the old town was abandoned during the fall of Ayutthaya, a new settlement was established in 1845 in the reign of King Rama IV. The province, today, is more famous for its natural charm of beaches and mountains than historical attractions. Hua Hin, its major attraction, is one of Thailand's most popular seaside resorts among overseas visitors as well as Thais.

Prachuap Khiri Khan is now divided into 7 districts and 1 sub-district: Amphoe Muang Prachuap Khiri Khan, Amphoe Bang Saphan, Amphoe Bang Saphan Noi, Amphoe Hua Hin, Amphoe Kui Buri, Amphoe Pran Buri, Amphoe Thap Sakae, and King Amphoe Sam Roi Yot.