Phổ Yên is a provincial city located in Thái Nguyên Province within the northeastern region of Vietnam. It serves as one of the primary urban centers of the province, situated in a geographically distinct area of the country.
As of 2021, the city covers a total area of 258.42 km² and has a recorded population of 231,363 residents. It is characterized by its status as a provincial administrative hub in northern Vietnam.