In South West England lies Bristol, a city and county with a population of 449,300 in 2016. The district has the tenth largest population in England, while the Bristol city area has the twelfth highest in the United Kingdom. The city is bounded by North Somerset and South Gloucest… In South West England lies Bristol, a city and county with a population of 449,300 in 2016. The district has the tenth largest population in England, while the Bristol city area has the twelfth highest in the United Kingdom. The city is bounded by North Somerset and South Gloucestershire, with the cities of Bath and Gloucester to the south-east and north-east, respectively.