People and census in Swansea
Welsh councilSouth west Wales. 249,429 people in 378 square kilometres.
24 layers about people and census for Swansea, each at the level its publisher released it, with its own date and source.
Population by output area
Census 2021, England and Wales
Swansea’s 806 output areas range from 103 to 1,113.
What is the population of Swansea?
Swansea had 238,490 usual residents at the census.
Swansea is the 86th most populated of 361 in the UK.
Population
CouncilSwansea had 238,490 usual residents at the census.
Swansea is the 86th most populated of 361 in the UK.
Population estimate
CouncilSwansea’s population was an estimated 249,429 in mid-2025.
The population fell 0.5% in the year to mid-2025.
Swansea is 86th most populated of 361 for population.
Aged 15 to 64
Council63.5% of residents in Swansea were aged 15 to 64 at the census.
In Wales the figure is 62.2%.
- Against Wales
- 2% higher62.2%
Aged 65 and over
Council20.5% of residents in Swansea were aged 65 or over at the census.
In Wales the figure is 21.3%.
- Against Wales
- 4% lower21.3%
Aged under 15
Council16.0% of residents in Swansea were aged under 15 at the census.
In Wales the figure is 16.5%.
- Against Wales
- 3% lower16.5%
Born outside the UK
Council9.4% of residents in Swansea were born outside the UK.
In Wales the figure is 6.9%.
- Against Wales
- 36% higher6.9%
Disability
Council22.4% of residents in Swansea had their day-to-day activities limited by a long-term health problem or disability.
In Wales the figure is 21.6%.
- Against Wales
- 4% higher21.6%
Good or very good health
Council78.7% of residents in Swansea said their health was good or very good.
In Wales the figure is 78.6%.
- Against Wales
- About the same78.6%
Households
CouncilSwansea had 104,962 households at the census.
Swansea is 80th highest of 361 for the number of households.
Households without a car or van
Council22.6% of households in Swansea had no car or van at the census.
In Wales the figure is 19.4%.
- Against Wales
- 16% higher19.4%
Owner-occupied homes
Council62.6% of households in Swansea owned their home at the census.
In Wales the figure is 66.4%.
- Against Wales
- 6% lower66.4%
Population density
CouncilSwansea had 632 people per square kilometre at the census.
In Wales the figure is 150 per km².
Worked out by Open Index from census population counts and the area of each place.
- Against Wales
- 4.2 times150 per km²
Private rented homes
Council18.0% of households in Swansea rented privately at the census.
In Wales the figure is 17.0%.
- Against Wales
- 6% higher17.0%
Social rented homes
Council19.1% of households in Swansea rented from a council or housing association at the census.
In Wales the figure is 16.5%.
- Against Wales
- 16% higher16.5%
Degree-level qualifications
CouncilEngland, Wales and Northern Ireland only32.8% of residents aged 16 and over in Swansea had a degree-level qualification at the census.
In Wales the figure is 31.5%.
- Against Wales
- 4% higher31.5%
Asian, Asian British or Asian Welsh
CouncilEngland and Wales only4.4% of residents in Swansea identified with the Asian, Asian British or Asian Welsh ethnic group.
In Wales the figure is 2.9%.
- Against Wales
- 1.5 times2.9%
Black, Black British, Black Welsh, Caribbean or African
CouncilEngland and Wales only1.2% of residents in Swansea identified with the Black, Black British, Black Welsh, Caribbean or African ethnic group.
In Wales the figure is 0.9%.
- Against Wales
- 33% higher0.9%
Mixed or Multiple ethnic groups
CouncilEngland and Wales only1.6% of residents in Swansea identified with a Mixed or Multiple ethnic group.
In Wales the figure is 1.6%.
- Against Wales
- About the same1.6%
Other ethnic group
CouncilEngland and Wales only1.4% of residents in Swansea identified with another ethnic group, including Arab.
In Wales the figure is 0.9%.
- Against Wales
- 1.6 times0.9%
White ethnic groups
CouncilEngland and Wales only91.4% of residents in Swansea identified with a White ethnic group.
In Wales the figure is 93.8%.
- Against Wales
- 3% lower93.8%
Christian
CouncilEngland and Wales only41.3% of residents in Swansea said they were Christian.
In Wales the figure is 43.6%.
- Against Wales
- 5% lower43.6%
No religion
CouncilEngland and Wales only47.3% of residents in Swansea said they had no religion.
In Wales the figure is 46.5%.
- Against Wales
- 2% higher46.5%
Working mainly from home
CouncilEngland and Wales only25.3% of working residents in Swansea worked mainly from home in March 2021.
In Wales the figure is 25.6%.
- Against Wales
- 1% lower25.6%
Annual population change
CouncilSwansea’s estimated population changed by −0.5% in the year to mid-2025.
Worked out by Open Index from the mid-year population estimates.