Wrexham Built-up area
The Wrexham Built-up area is an area of land defined by the United Kingdom Office for [National Statistics] for population monitoring purposes. It is an urban conurbation fully within Wrexham County Borough and consists of the urban area centred on the city of Wrexham. Until the 2021 [United Kingdom census|2021 census], it also included the historically industrial settlements to the west including Gwersyllt, Rhostyllen, Brymbo, Bradley and New Broughton.
Description
2011 census
The detailed methodology of the process used across the UK by ONS in 2011 is set out in 2011 Built-up Areas - Methodology and Guidance, published in June 2013. It is summarised as "..a ‘bricks and mortar’ approach, with areas defined as built-up land with a minimum area of 20 hectares, while settlements within 200 metres of each other are linked. Built-up area sub-divisions are also identified to provide greater detail in the data, especially in the larger conurbations."The total population of the built-up area defined on this basis in 2011 was 65,692 at the 2011 census making Wrexham the List of [built-up areas in Wales by population|fourth largest built-up area] in Wales, and largest in North Wales at the time. This accounts for almost half of the entire country borough's population of 136,055 residents, with the remainder living in Rhosllanerchrugog's built-up area of 25,362 residents or in various villages and towns in rural parts of the county borough.
2021 census
For the 2021 census, the "Wrexham built-up area" was reduced to 44,785 residents, with other areas formerly considered part of the BUA split into separate ones.Subdivisions (2011 census)
The ONS provides sub-division statistics for the Wrexham built-up area for the 2011 census.| Rank | Urban sub-area name | Population | Area | Population density |
| - | Wrexham | 65,692 | ||
| 1 | Wrexham | 61,603 | ||
| 2 | Rhostyllen | 2,766 | ||
| 3 | Bradley | 1,323 |