Phúc Yên is a city in Vĩnh Phúc Province in the Red River Delta region of Vietnam. As of 2003 the district had a population of 83,352. The district covers an area of 120 km2. The district capital lies at Phúc Yên. The city is on National Route 2 heading North-West out of Hanoi to the town of Vĩnh Yên.