The principal area is the second most populous local authority area in Wales, with an estimated population of in . Swansea, along with Neath and Port Talbot, forms the Swansea Urban Area, with a population of 300,352 in 2011. It is also part of the Swansea Bay City Region.
The principal area is the second most populous local authority ar,ea in Wales, with an estimated population of, in . Swansea along with Neath and Port Talbot forms the Swansea Urban Area, with a population of 300,352 in 2011. It is also part of the Swansea Bay City Region.