William Street is in Abercynon, Mountain Ash and in Rhondda Cynon Taff district. CF45 4RW is located in the Abercynon electoral ward, within the English Parliamentary constituency of Cynon Valley. This postcode has been in use since 1980-01-01.
StreetScan combines information about William Street, Abercynon, Mountain Ash, CF45 4RW and displays a report on the quality of life in this place and its surroundings.
Nearby postcodes are: CF45 4RL, CF45 4RH, CF45 4RP, CF45 4RN, CF45 4PA, CF45 4NR, CF45 4NN, CF45 4RE, CF45 4NP.
In the UK, the overall gender distribution is approximately 49% male and 51% female. The area surrounding CF45 4RW has a slightly higher male population, with 52.3% of residents being male. Several factors can contribute to this, including areas with industries or sectors that predominantly employ men, proximity to universities or technical schools with a higher enrollment of male students, presence of all-male or predominantly male institutions (military academies, boarding schools).
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Female | 48.5% | 47.7% | -0.8% | 51.0% | -3.3% |
| Male | 51.5% | 52.3% | 0.8% | 49.0% | 3.3% |
Across the UK, the average relationship status breakdown is roughly 44% married, 38% single, 9% divorced, 6% widowed, and 2% separated.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Single | 29.8% | 38.2% | 8.4% | 37.9% | 0.3% |
| Married: Opposite sex | 51% | 43.8% | -7.2% | 44.2% | -0.4% |
| Separated | 1.6% | 1.7% | 0.1% | 2.2% | -0.5% |
| Divorced | 10.2% | 7.7% | -2.5% | 9.1% | -1.4% |
| Widowed | 7.3% | 8.6% | 1.3% | 6.1% | 2.5% |
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.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Very good health | 40.7% | 43.2% | 2.5% | 48.4% | -5.2% |
| Good health | 31.9% | 33.1% | 1.2% | 33.6% | -0.5% |
| Fair health | 15.6% | 12.9% | -2.7% | 12.7% | 0.2% |
| Bad health | 8.5% | 6.5% | -2.0% | 4.0% | 2.5% |
| Very bad health | 3.4% | 4.3% | 0.9% | 1.2% | 3.1% |
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 CF45 4RW this area, 29.6% of residents have no qualifications. This is significantly higher than the UK average of 18.2%. This area stands out for its low percentage of residents with higher education degree. The UK average is 33.8%, while in this area it is 22.3%.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| No qualifications | 40% | 29.6% | -10.4% | 18.2% | 11.4% |
| 1-4 GCSEs or Equivalent | 12.2% | 10.7% | -1.5% | 9.6% | 1.1% |
| 5 or more GCSEs, an A-Level or 1-2 AS Levels | 15.5% | 13.3% | -2.2% | 13.4% | -0.1% |
| Apprenticeship | 3.7% | 5.2% | 1.5% | 5.3% | -0.1% |
| HNC, HND or 2+ A Levels | 7.8% | 15.9% | 8.1% | 16.9% | -1.0% |
| Degree or Similar | 18.8% | 22.3% | 3.5% | 33.8% | -11.5% |
| Other | 2% | 3% | 1.0% | 2.8% | 0.2% |
In this area, the population is predominantly white, with 100% 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) | |
|---|---|---|---|---|---|
| White | 100% | 100% | 0.0% | 81.4% | 18.6% |
In this area, 97.5% of the population were born in the United Kingdom, which is higher than the UK average of 83.2%.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| United Kingdom | 99.7% | 97.5% | -2.2% | 83.2% | 14.3% |
| European Union | 0% | 1.8% | 1.8% | 6.1% | -4.3% |
| Rest of Europe | 0% | 0.7% | 0.7% | 0.8% | -0.1% |
| Oceania | 0.3% | 0% | -0.3% | 0.3% | -0.3% |
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Born in the UK | 99.7% | 97.5% | -2.2% | 83.2% | 14.3% |
| 10+ Years | 0% | 1.4% | 1.4% | 9.8% | -8.4% |
| 5-10 Years | 0% | 0.7% | 0.7% | 2.9% | -2.2% |
| Less than 2 years | 0.3% | 0.4% | 0.1% | 1.9% | -1.5% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| United Kingdom | 83.4% | 76.7% | 6.7% |
| Portugal | 0.7% | 0.5% | 0.2% |
| Poland | 0.4% | 1.3% | -0.9% |
| No passport held | 15.5% | 13.5% | 2.0% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| No religion | 51.3% | 37.2% | 14.1% |
| Christian | 41.5% | 46.2% | -4.7% |
| Buddhist | 0.4% | 0.5% | -0.1% |
| Not answered | 6.9% | 6.0% | 0.9% |
Over the last 12 months, the overall crime rate around William Street was 92.9 per 1,000 residents, which is 11.7% higher than the Abercynon average. The most reported crime type was Violence and sexual offences.
William Street has the 7th highest crime rate of 20 local areas in Abercynon and the 271st highest crime rate of 797 local areas in Rhondda Cynon Taf .
Violent and sexual offences accounted for around 64.3 crimes per 1,000 residents and have been rising year on year. Over the last decade, overall crime has risen by about 8.7%.
Households in this area have a lower level of wealth compared to the average household in England and Wales. 90% of analyzed areas in England and Wales have higher average household annual income than this area.
| Address | Sale Price | Sale Date | Price Estimate 2025 |
|---|---|---|---|
| 23 William Street, Mountain Ash, Rhondda Cynon Taff Terraced, an established residential building | £155,000 | 2025-05-08 | £153,780 |
| 20 William Street, Mountain Ash, Rhondda Cynon Taff Terraced, an established residential building | £98,000 | 2024-09-13 | £99,883 |
| 29 William Street, Mountain Ash, Rhondda Cynon Taff Terraced, an established residential building | £167,000 | 2024-09-09 | £170,208 |
| 10 William Street, Mountain Ash, Rhondda Cynon Taff Terraced, an established residential building | £159,995 | 2023-04-21 | £177,225 |
| 8 William Street, Mountain Ash, Rhondda Cynon Taff Terraced, an established residential building | £103,618 | 2022-12-19 | £102,903 |
CF45 4RW area has a low unemployment rate. According to Census 2021, 3% residents of this area were unemployed, while the average in the UK was 4.83%. A low level of unemployment in an area indicates a strong job market, where most people who are seeking work can find employment. This generally reflects a healthy economy in the area.
| Full-Time Employee | 82 |
| Retired | 52 |
| Part-Time Employee | 29 |
| Long-Term Sick or disabled | 20 |
| Self-Employed | 17 |
| Student (economically inactive) | 11 |
| Looking after home or family | 9 |
| Unemployed | 8 |
| Other | 6 |
| Full-Time Student (with or without job) | 1 |
| Manufacturing | 22 |
| Construction | 19 |
| Human health and social work activities | 17 |
| Education | 8 |
| Administrative and support service activities | 8 |
| Professional, scientific and technical activities | 7 |
| Wholesale and retail trade; repair of motor vehicles and motor cycles | 7 |
| Public administration and defence; compulsory social security | 7 |
| Financial and insurance activities | 4 |
| Water supply; sewerage, waste management and remediation activities | 4 |
| Other | 3 |
| Real estate activities | 3 |
| Information and communication | 2 |
| Transport and storage | 2 |
| Accommodation and food service activities | 1 |
| Electricity, gas, steam and air conditioning supply | 1 |
| Mining and quarrying | 1 |
| Ofsted Overall Effectiveness | Distance | Establishment Type | Has Nursery Classes | Gender | More Info | |
|---|---|---|---|---|---|---|
| Ysgol Gymraeg Abercynon Greenfield Terrace , Glancynon CF45 4TH | - not rated | 915 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Trerobart Primary School Crawshay Street , Ynysybwl CF37 3EF | - not rated | 2,340 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Edwardsville Primary School Cardiff Road , Edwardsville CF46 5NE | - not rated | 2,391 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Pontypridd High School Albion Site , Cilfynydd CF37 4SF | - not rated | 2,554 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Craig-Yr-Hesg Primary School Cefn Lane , Glyncoch CF37 3BP | - not rated | 2,660 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
School statistics for this postcode are based on Ofsted rankings.
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Fives Cafe | 16 Margaret Street | 147 yd | |
| The Jellyfish Cafe | 51 Margaret Street | 232 yd | |
| Goochie's Diner | 21 Ynysmeurig Road | 242 yd | |
| Little Playhouse Ltd | 1 Ynysmeurig Road | 305 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Lindsay Constitutional Club | 44 Gertrude Street | 65 yd | |
| Brown's Inns at The Top Club | Margaret Street | 171 yd | |
| The Carne Park Hotel | Park Street | 366 yd | |
| Thorn Hotel | Mountain Ash Road | 470 yd | |
| Abercynon Rugby Football Club | The Clubhouse, Y Parc | 929 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Crazy Pasta and Pizza | 14 Margaret Street | 147 yd | |
| Golden Wok | 3 Margaret Street | 147 yd | |
| Pizza Time | 11 Margaret Street | 147 yd | |
| Amigo's Pizza | 28B Margaret Street | 148 yd | |
| Smithy's Chippy | 15 Margaret Street | 148 yd |
This statistics are based on Active Places Data - Contains Data © Sport England
| 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 | 0.0% |
| Percentage of premises that have Ultrafast Broadband (300Mbit/s or greater) coverage from fixed broadband | 0.0% |
| Percentage of premises that have coverage from a Gigabit capable service from fixed broadband | 0.0% |
| 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% |
| Median download speed | 79.5 Mbit/s |
| Average download speed | 71 Mbit/s |
| Minimum download speed | 80 Mbit/s |
| Maximum download speed | 80 Mbit/s |
| Median upload speed | 20 Mbit/s |
| Average upload speed | 17.7 Mbit/s |
| Maximum upload speed | 20 Mbit/s |
Broadband statistics are based on Ofcom's Communications Market Report (CMR) 2022.