William Street, Cardiff, CF11 9JX

People

Gender

In the UK, the overall gender distribution is approximately 49% male and 51% female. The local area around CF11 9JX is generally consistent with those figures, having a male population of 48.1%.

	2011	2021	10y change (pp)	UK Average	postcode vs UK (pp)
Female	55.2%	51.9%	-3.3%	51.0%	0.9%
Male	44.8%	48.1%	3.3%	49.0%	-0.9%

Partnership Status

Across the UK, the average relationship status breakdown is roughly 44% married, 38% single, 9% divorced, 6% widowed, and 2% separated.

In the immediate area around CF11 9JX, a significant portion of the population is single, making up 48.5% of the residents. On average, approximately 38% of individuals who responded to the census in the UK were single. Areas with higher single populations are typically urban centers, university towns, regions with dynamic job markets, rich cultural offerings and entertainment facilities. These regions also tend to have a younger demographic.

	2011	2021	10y change (pp)	UK Average	postcode vs UK (pp)
Single	57.4%	48.5%	-8.9%	37.9%	10.6%
Married: Opposite sex	23.5%	33.9%	10.4%	44.2%	-10.3%
Married: Same sex	1.6%	1.3%	-0.3%	0.3%	1.0%
Separated	1.6%	0.8%	-0.8%	2.2%	-1.4%
Divorced	12%	12.1%	0.1%	9.1%	3.0%
Widowed	4%	3.3%	-0.7%	6.1%	-2.8%

Health

Across the UK, the average 48.4% rated their health as Very Good, 33.6% as Good, 12.7% as Fair, 4% as Bad, and 1.2% as Very Bad.

Population age significantly impacts residents' health. Additionally, socioeconomic status plays a crucial role: higher income levels and lower poverty rates are linked to better health outcomes. Affluent areas benefit from higher living standards, access to private healthcare, and healthier lifestyle choices.

This area has a high percentage of residents reporting their health as Good or Very Good (89.2%) compared to the average (82%). This typically indicates either a younger population or more affluent area.

	2011	2021	10y change (pp)	UK Average	postcode vs UK (pp)
Very good health	58.3%	55.1%	-3.2%	48.4%	6.7%
Good health	29.5%	34.1%	4.6%	33.6%	0.5%
Fair health	10.1%	8.4%	-1.7%	12.7%	-4.3%
Bad health	1.7%	1.4%	-0.3%	4.0%	-2.6%
Very bad health	0.3%	1%	0.7%	1.2%	-0.2%

Education and Qualifications

During the 2021 census, the educational qualifications of residents across the UK were as follows: 18.2% had no qualifications, 9.6% had 1-4 GCSEs, 13.4% had 5 or more GCSEs and 1-2 A/AS Levels, 16.9% had 2 or more A Levels, 33.8% held a degree (or equivalent), and 5.4% had completed an apprenticeship.

In the area around CF11 9JX this area, 4.6% of residents have no qualifications. This is significantly lower than the UK average of 18.2%. This area stands out for its high percentage of residents with higher education degree or similar. The UK average is 33.8%, while in this area it is 71.5%.

	2011	2021	10y change (pp)	UK Average	postcode vs UK (pp)
No qualifications	5.6%	4.6%	-1.0%	18.2%	-13.6%
1-4 GCSEs or Equivalent	5.6%	1.7%	-3.9%	9.6%	-7.9%
5 or more GCSEs, an A-Level or 1-2 AS Levels	7.6%	5%	-2.6%	13.4%	-8.4%
Apprenticeship	2%	2.5%	0.5%	5.3%	-2.8%
HNC, HND or 2+ A Levels	10.8%	12.1%	1.3%	16.9%	-4.8%
Degree or Similar	65.7%	71.5%	5.8%	33.8%	37.7%
Other	2.8%	2.5%	-0.3%	2.8%	-0.3%

Culture

Ethnic Group

In this area, the population is predominantly white, with 90.3% identifying as such, significantly higher than the UK average of 81.4%. This indicates a lower level of ethnic diversity compared to the broader UK population.

	2011	2021	10y change (pp)	UK Average	postcode vs UK (pp)
Bangladeshi	0.3%	0%	-0.3%	1.1%	-1.1%
Chinese	0.3%	1%	0.7%	0.7%	0.3%
Indian	0.3%	0.7%	0.4%	3.1%	-2.4%
Pakistani	0%	1%	1.0%	2.7%	-1.7%
Other Asian	0.7%	0.7%	0.0%	1.6%	-0.9%
Black African	1%	0%	-1.0%	2.5%	-2.5%
Mixed White and Asian	1.7%	0.3%	-1.4%	0.8%	-0.5%
Mixed White and African	0.7%	0%	-0.7%	0.4%	-0.4%
Mixed White and Caribbean	0.7%	0.3%	-0.4%	0.9%	-0.6%
Mixed Other	0.7%	2.4%	1.7%	0.8%	1.6%
White	93.1%	90.3%	-2.8%	81.4%	8.9%
Arab	0%	1.4%	1.4%	0.6%	0.8%
Other	0.3%	1.7%	1.4%	1.6%	0.1%

Country of Birth

In this area, 85.8% of the population were born in the United Kingdom, which is similar to the UK average of 83.2%.

	2011	2021	10y change (pp)	UK Average	postcode vs UK (pp)
United Kingdom	88.2%	85.8%	-2.4%	83.2%	2.6%
European Union	3.5%	4.9%	1.4%	6.1%	-1.2%
Africa	3.5%	0%	-3.5%	2.7%	-2.7%
Middle East and Asia	2.4%	5.2%	2.8%	5.6%	-0.4%
The Americas and the Caribbean	0.7%	2.4%	1.7%	1.3%	1.1%
Oceania	1.7%	1.7%	0.0%	0.3%	1.4%

Length of Residence

	2011	2021	10y change (pp)	UK Average	postcode vs UK (pp)
Born in the UK	87.2%	86.7%	-0.5%	83.2%	3.5%
10+ Years	2.4%	7.4%	5.0%	9.8%	-2.4%
5-10 Years	1.4%	2.5%	1.1%	2.9%	-0.4%
2-5 Years	1.4%	1.8%	0.4%	2.2%	-0.4%
Less than 2 years	7.6%	1.8%	-5.8%	1.9%	-0.1%

Passport Held

	2021	UK Average	postcode vs UK (pp)
United Kingdom	84.3%	76.7%	7.6%
Ireland	1%	0.6%	0.4%
France	0.3%	0.3%	0.0%
Italy	2.1%	0.6%	1.5%
Spain	1.4%	0.4%	1.0%
Lithuania	0.3%	0.3%	0.0%
Other EU countries	1%	1.5%	-0.5%
Middle East	1.7%	0.1%	1.6%
Southern Asia	1%	1.2%	-0.2%
North America and the Caribbean	0.7%	0.3%	0.4%
Oceania	0.7%	0.1%	0.6%
No passport held	5.2%	13.5%	-8.3%

Religion

	2021	UK Average	postcode vs UK (pp)
No religion	56.7%	37.2%	19.5%
Christian	33.2%	46.2%	-13.0%
Buddhist	1%	0.5%	0.5%
Jewish	0.3%	0.5%	-0.2%
Muslim	2.8%	6.5%	-3.7%
Other religion	0.3%	0.6%	-0.3%
Not answered	5.5%	6.0%	-0.5%

Safety

Is William Street dangerous?

Over the last 12 months, the overall crime rate around William Street was 150.2 per 1,000 residents, which is 8.6% lower than the Riverside average. The most reported crime type was Violence and sexual offences.

William Street has the 15th highest crime rate of 43 local areas in Riverside and the 205th highest crime rate of 1,028 local areas in Cardiff .

Violent and sexual offences accounted for around 69.6 crimes per 1,000 residents and have been rising year on year. Over the last decade, overall crime has risen by about 82.0%.

🔎 See full breakdown of local crime, hotspots & trends

Affluence

Household Income

Households in this area have a slightly higher level of wealth to the average household in England and Wales. 70% of analyzed areas in England and Wales have lower average household annual income than this area.

Average Household Income
£51,000

Income Rank
7/10

Household Income in CF11 9JX, Local Authority and Region

Deprivation

Overall Deprivation Rank - 4/10 (below average )
The Welsh Index of Multiple Deprivation (WIMD) measures how deprived small areas in Wales are compared to each other. WIMD highlights areas with the highest levels of different types of deprivation. Its main goal is to provide information about the most deprived areas in Wales to help make decisions about funding and local services. It considers the following domains:
Income Deprivation Domain - 4/10 (below average )
This domain measures the percentage of people with income below a certain level. It makes up 22% of the overall index.
Employment Deprivation Domain - 3/10 (low )
This domain measures the lack of employment. It includes people of working age who are unable to work due to poor health or who are unemployed but looking for work. This domain makes up 22% of the overall Index.
Health Deprivation Domain - 3/10 (low )
This domain measures poor health. It doesn't have any sub-sections. Some indicators are adjusted for age and sex to account for differences in different areas. This domain makes up 15% of the overall index.
Education Deprivation Domain - 1/10 (very low )
This domain measures how much people in an area lack education, training, and skills. It shows the educational disadvantages, like not having qualifications or skills. This domain makes up 14% of the overall index.
Access To Services Deprivation Domain - 4/10 (below average )
This domain measures how deprived a household is if they can't access important services needed for daily life, both in person and online. This includes not being able to get things like food (material deprivation) and not being able to do things like attend after-school activities (social deprivation). Poor access to services can make other types of deprivation worse. This domain counts for 10% of the overall index.
Housing Deprivation Domain - 8/10 (high )
The housing domain aims to identify poor housing based on physical conditions, living conditions, and availability. "Living conditions" means how suitable the housing is for the people living there, including health, safety, and necessary adjustments. This domain makes up 7% of the overall index.
Community Safety Deprivation Domain - 8/10 (high )
This domain looks at how safe people feel in their community. It includes actual crime and fire incidents, as well as how safe people feel when they are outside in their neighborhood. This domain makes up 5% of the overall index.
Physical Environment Deprivation Domain - 10/10 (very high )
This domain measures things in the local area that might affect the well-being or quality of life of residents. It makes up 5% of the overall index.

Property Prices

Average property prices on William Street are based on 13 property sales since the beginning of 1995. Estimated property prices are calculated by adjusting the last sale price by current House Price Index for Cardiff.
StreetScan downloads house price data directly from the HM Land Registry and uses it to create these statistics.

House Prices for William Street, Cardiff, CF11 9JX

Estimated Average Property Prices for CF11 9JX

Average Price
£253,949

Semi-Detached
no sales

Terraced
£316,415

Detached
no sales

Flats/Maisonettes
£191,483

Other
no sales

Estimated Average Property Prices for William Street

Average Price
£235,468

Semi-Detached
no sales

Terraced
£305,817

Detached
no sales

Flats/Maisonettes
£175,169

Other
no sales

Property Prices Comparison

Latest Property Sales on William Street

Address	Sale Price	Sale Date	Price Estimate 2025
2 William Street, Cardiff, Cardiff Terraced, an established residential building	£185,000	2015-10-28	£285,985
8 William Street, Cardiff, Cardiff Terraced, an established residential building	£183,700	2014-12-23	£294,149
6 William Street, Cardiff, Cardiff Terraced, an established residential building	£214,000	2012-10-26	£381,269
2A William Street, Cardiff, Cardiff Flats/Maisonettes, an established residential building	£128,000	2011-06-10	£202,428
1B William Street, Cardiff, Cardiff Flats/Maisonettes, an established residential building	£124,950	2011-05-13	£198,875

View All Property Sales and Other Statistics for CF11 9JX

Employment

CF11 9JX area has a very high level of entrepreneurship. Only 2% of streets have higher percent of entrepreneur residents. 20% of population in this area is self-employed, while the average in the UK is 9.7%. High number of entrepreneurs usually leads to relatively high economic growth, higher paid jobs and better quality of life in the area.

Economic Activity

Full-Time Employee	106
Self-Employed	48
Retired	35
Part-Time Employee	17
Full-Time Student (with or without job)	11
Unemployed	9
Student (economically inactive)	8
Looking after home or family	5
Long-Term Sick or disabled	4
Other	0

Employment Industry

Education	44
Human health and social work activities	24
Wholesale and retail trade; repair of motor vehicles and motor cycles	22
Public administration and defence; compulsory social security	19
Professional, scientific and technical activities	19
Other	17
Information and communication	15
Administrative and support service activities	7
Manufacturing	7
Accommodation and food service activities	5
Financial and insurance activities	4
Transport and storage	3
Construction	2
Real estate activities	2
Water supply; sewerage, waste management and remediation activities	1

Schools

Not applicable

	Ofsted Overall Effectiveness	Distance	Establishment Type	Has Nursery Classes	Gender	More Info
Radnor Primary School Radnor Road , Canton CF5 1RB	- not rated	694 yd	Welsh establishment	Not Applicable	Not applicable	More About School
Howell's School Cardiff Road , Llandaff CF5 2YD	- not rated	711 yd	Welsh establishment	Not Applicable	Not applicable	More About School
St Mary's R.C. Primary School Wyndham Crescent , Canton CF11 9EF	- not rated	769 yd	Welsh establishment	Not Applicable	Not applicable	More About School
The Cathedral School Cardiff Road , Llandaff CF5 2YH	- not rated	1,191 yd	Welsh establishment	Not Applicable	Not applicable	More About School
Lansdowne Primary School Norfolk Street , Canton CF5 1JY	- not rated	1,245 yd	Welsh establishment	Not Applicable	Not applicable	More About School

School statistics for this postcode are based on Ofsted rankings.

Food and Drink

Restaurants, Cafes, Canteens

Business Name	Address	Distance
ORIEL’S	221 Cathedral Road, Pontcanna	55 yd
Coffee #1	211 - 217 Cathedral Road, Pontcanna	86 yd
Milkwood	83 Pontcanna Street, Pontcanna	129 yd
The Smoke House	77 Pontcanna Street, Pontcanna	139 yd
Cafe Brava	71 Pontcanna Street, Pontcanna	152 yd

Pubs, Bars, Nightclubs

Business Name	Address	Distance
The New Conway	Conway Hotel, 58 Conway Road, Pontcanna	127 yd
The Romilly	The Romilly Hotel, 69 - 71 Romilly Crescent, Pontcanna	428 yd
Robin Hood	The Robin Hood Hotel, 16 Severn Grove, Riverside	477 yd
Butchers Arms	The Butchers Arms, 29 Llandaff Road, Canton	648 yd
The Cricketers	Managers Flat, The Cricketers, 66 Cathedral Road, Pontcanna	711 yd

Takeaway, Sandwich Shops

Business Name	Address	Distance
Bamboo Garden	239 Cathedral Road, Pontcanna	15 yd
Hot Pantry Limited	229 Cathedral Road, Pontcanna	34 yd
Pontcanna Grill & Pizza/Pontcanna Spice	90 - 92 Severn Road, Pontcanna	563 yd
Rock & Malt	89 - 89A Wyndham Crescent, Pontcanna	565 yd
Domino's Pizza	200 Cowbridge Road East, Canton	837 yd

Supermarkets, Hypermarkets

Business Name	Address	Distance
The Co-operative Group	Co-operative Group Food Limited, 200 King's Road, Pontcanna	375 yd
Iceland	194C Cowbridge Road East, Canton	829 yd
Canton Food Centre	114 Cowbridge Road East, Riverside	907 yd
Tesco	Tesco Metro Delta Street, Riverside	949 yd
Tesco	425 - 427 Cowbridge Road East, Canton	1,023 yd

Sport

We haven't found any sport facilities near CF11 9JX postcode.

Broadband

Technology Aviability

Percentage of premises that have Superfast Broadband (30Mbit/s or greater) coverage from fixed broadband	100.0%
Percentage of premises that have Ultrafast Broadband (100Mbit/s or greater) coverage from fixed broadband	100.0%
Percentage of premises that have Ultrafast Broadband (300Mbit/s or greater) coverage from fixed broadband	100.0%
Percentage of premises that have coverage from a Gigabit capable service from fixed broadband	100.0%

Speed Aviability

Percentage of premises unable to receive 2Mbit/s	0.0%
Percentage of premises unable to receive 5Mbit/s	0.0%
Percentage of premises unable to receive 10Mbit/s	0.0%
Percentage of premises unable to receive 30Mbit/s	0.0%

Download Speed

Median download speed	100 Mbit/s
Average download speed	146 Mbit/s
Minimum download speed	330 Mbit/s
Maximum download speed	330 Mbit/s

Upload Speed

Median upload speed	10 Mbit/s
Average upload speed	21.8 Mbit/s
Maximum upload speed	50 Mbit/s

Broadband statistics are based on Ofcom's Communications Market Report (CMR) 2022.

Overview of CF11 9JX