Birmingham is a city and metropolitan borough in the West Midlands, England. Birmingham is the largest of England's core cities, and is often considered to be the second city of the United Kingdom. The City of Birmingham has a population of 1,006,500 (2006 estimate). It forms part of the larger West Midlands conurbation, which has a population of 2,284,093 (2001 census) and includes several neighbouring towns and cities, such as Solihull, Wolverhampton and the towns of the Black Country.