The Cardiff Built-up Area or Cardiff Urban Area is the name given to the urban area around

Cardiff Cardiff (; ) is the capital city, capital and List of urban areas in the United Kingdom, largest city of Wales. Cardiff had a population of in and forms a Principal areas of Wales, principal area officially known as the City and County of Ca ...

. The vast bulk of the population and area are contributed by Cardiff, which had a population of 335,145 at the 2011 census. The rest was made up by the towns of

Penarth Penarth ( , ) is a town and Community (Wales), community in the Vale of Glamorgan, Wales, approximately south of Cardiff city centre on the west shore of the Severn Estuary at the southern end of Cardiff Bay. Penarth is a Seaside resort#Brit ...

and Dinas Powys, connected to the south-west of the city along

Cardiff Bay Cardiff Bay (; colloquially "The Bay") is an area and freshwater lake in Cardiff, Wales. The site of a former tidal bay and estuary, it is the river mouth of the River Taff and River Ely, Ely. The body of water was converted into a lake as part ...

; as well as the South Wales Valleys towns of

Caerphilly Caerphilly (, ; , ) is a town and community (Wales), community in Wales. It is situated at the southern end of the Rhymney Valley and separated from the Cardiff suburbs of Lisvane and Rhiwbina by Caerphilly Mountain. It is north of Cardiff an ...

and

Pontypridd Pontypridd ( , ), Colloquialism, colloquially referred to as ''Ponty'', is a town and a Community (Wales), community in Rhondda Cynon Taf, South Wales, approximately 10 miles north west of Cardiff city centre. Geography Pontypridd comprises the ...

. The total official population of this urban area was given to be 447,487 in 2011. This was an increase of almost 37% on the 2001 population of 327,706. This was mainly due to

and

becoming part of the built-up area. The population of the Cardiff unitary authority (not co-terminous with the built-up area or the wider urban area) in 2001 was 305,353.Area: Cardiff (Local Authority)
, Office of National Statistics. Cardiff Council estimated the population of the unitary authority at 317,500 in 2006; at the 2011 census it was 346,090.

Subdivisions

According to the ONS definition the Cardiff Urban Area had the following subdivisions: Notes: * Radyr was included in the Cardiff subdivision in the 2011 census. * Pontypridd, Caerphilly and Taff's Well were separate urban areas in the 2001 census.

References

{{reflist Demographics of Wales Urban areas of Wales