Cardiff vs Swansea

A side-by-side comparison of the Cardiff and Swansea local authority areas — population, density, deprivation and age profile, from ONS Census 2021 and the English Indices of Deprivation.

	Cardiff	Swansea
Population	362,308	238,489
Density	2,571/km²	632/km²
Deprivation	18% in most-deprived 10%	11% in most-deprived 10%
Aged under 16	18%	17%
Aged 16–64	67%	62%
Aged 65+	14%	20%

Cardiff council area →Swansea council area →