Norwich is a city in England. It is the regional administrative centre and county town of Norfolk. During the 11th century Norwich was the second largest city in England after London and one of the most important places in the kingdom. The built up area of Norwich has a population of 259 100. This area extends beyond the city boundary with extensive suburban areas on the western northern and eastern sides including Costessey Hellesdon Old Catton Sprowston and Thorpe St Andrew.