Swansea is the regional economic centre of southwest Wales and the second largest city in Wales, accounting for 15% of the Welsh economy. The Swansa marketplace is home to 630,000 residents. 321,000 people live within Swansa. Annual footfall of 3.5 million people in the prime retail centre, up 16^ on the previous year, Swansea has 24,000 students in its two universities.