Duffryn Street is in Mountain Ash and in Cynon Valley district. CF45 3HR is located in the Mountain Ash electoral ward, within the English Parliamentary constituency of Cynon Valley. This postcode has been in use since 1980-01-01.
StreetScan combines information about Duffryn Street, Mountain Ash, CF45 3HR and displays a report on the quality of life in this place and its surroundings.
Nearby postcodes are: CF45 3HW, CF45 3HY, CF45 3LB, CF45 3LA, CF45 3HN, CF45 3HB, CF45 3HU, CF45 3HF, CF45 3LD.
In the UK, the overall gender distribution is approximately 49% male and 51% female. However, the area surrounding CF45 3HR, has a female population slightly higher than UK average, with 55% of residents being female. Several factors can contribute to this. Women generally live longer than men, resulting in a higher proportion of women in neighborhoods with significant elderly populations. Typically, as people grow older, they tend to relocate from city center addresses to suburban areas, smaller towns, and rural locations. Consequently, these areas often have a higher number of females. A higher female population can also be found in areas with industries that employ more women, such as healthcare, education, and retail.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Female | 56.6% | 55% | -1.6% | 51.0% | 4.0% |
| Male | 43.4% | 45% | 1.6% | 49.0% | -4.0% |
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 | 38.5% | 39.4% | 0.9% | 37.9% | 1.5% |
| Married: Opposite sex | 36.5% | 36.5% | 0.0% | 44.2% | -7.7% |
| Separated | 1% | 3% | 2.0% | 2.2% | 0.8% |
| Divorced | 11% | 14.3% | 3.3% | 9.1% | 5.2% |
| Widowed | 13% | 6.9% | -6.1% | 6.1% | 0.8% |
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 lower percentage of residents reporting their health as Good or Very Good (69.2%) compared to the average (82%). This typically indicates either an older population or social deprivation in the area.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Very good health | 33.5% | 37.9% | 4.4% | 48.4% | -10.5% |
| Good health | 31.4% | 31.3% | -0.1% | 33.6% | -2.3% |
| Fair health | 18.2% | 14.4% | -3.8% | 12.7% | 1.7% |
| Bad health | 12.8% | 11.5% | -1.3% | 4.0% | 7.5% |
| Very bad health | 4.1% | 4.9% | 0.8% | 1.2% | 3.7% |
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 3HR this area, 30.3% 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 18.4%.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| No qualifications | 41.5% | 30.3% | -11.2% | 18.2% | 12.1% |
| 1-4 GCSEs or Equivalent | 15.5% | 8% | -7.5% | 9.6% | -1.6% |
| 5 or more GCSEs, an A-Level or 1-2 AS Levels | 16% | 19.4% | 3.4% | 13.4% | 6.0% |
| Apprenticeship | 1.5% | 6.5% | 5.0% | 5.3% | 1.2% |
| HNC, HND or 2+ A Levels | 11% | 16.4% | 5.4% | 16.9% | -0.5% |
| Degree or Similar | 10.5% | 18.4% | 7.9% | 33.8% | -15.4% |
| Other | 4% | 1% | -3.0% | 2.8% | -1.8% |
In this area, the population is predominantly white, with 99.2% 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) | |
|---|---|---|---|---|---|
| Mixed Other | 0% | 0.4% | 0.4% | 0.8% | -0.4% |
| White | 100% | 99.2% | -0.8% | 81.4% | 17.8% |
| Other | 0% | 0.4% | 0.4% | 1.6% | -1.2% |
In this area, 95.5% 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 | 99.6% | 95.5% | -4.1% | 83.2% | 12.3% |
| European Union | 0.4% | 3.7% | 3.3% | 6.1% | -2.4% |
| The Americas and the Caribbean | 0% | 0.8% | 0.8% | 1.3% | -0.5% |
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Born in the UK | 99.2% | 96.3% | -2.9% | 83.2% | 13.1% |
| 10+ Years | 0% | 0.8% | 0.8% | 9.8% | -9.0% |
| 5-10 Years | 0% | 0.8% | 0.8% | 2.9% | -2.1% |
| 2-5 Years | 0.4% | 2.1% | 1.7% | 2.2% | -0.1% |
| Less than 2 years | 0.4% | 0% | -0.4% | 1.9% | -1.9% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| United Kingdom | 78.4% | 76.7% | 1.7% |
| Germany | 0.4% | 0.2% | 0.2% |
| Italy | 0.8% | 0.6% | 0.2% |
| Poland | 0.4% | 1.3% | -0.9% |
| Other EU countries | 2.1% | 1.5% | 0.6% |
| No passport held | 17.8% | 13.5% | 4.3% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| No religion | 46.9% | 37.2% | 9.7% |
| Christian | 46.9% | 46.2% | 0.7% |
| Other religion | 0.4% | 0.6% | -0.2% |
| Not answered | 5.8% | 6.0% | -0.2% |
Over the last 12 months, the overall crime rate around Duffryn Street was 144.1 per 1,000 residents, which is 49.1% higher than the Mountain Ash average. The most reported crime type was Violence and sexual offences.
Duffryn Street has the 5th highest crime rate of 23 local areas in Mountain Ash and the 151st highest crime rate of 797 local areas in Rhondda Cynon Taf .
Violent and sexual offences accounted for around 93.2 crimes per 1,000 residents and have been rising year on year. Over the last decade, overall crime has fallen by about -65.0%.

Households in this area have a much lower level of wealth compared to the average household in England and Wales. 91% of analyzed areas in England and Wales have higher average household annual income than this area.

| Address | Sale Price | Sale Date | Price Estimate 2025 |
|---|---|---|---|
| 74 Duffryn Street, Mountain Ash, Rhondda Cynon Taff Terraced, an established residential building | £127,500 | 2024-10-25 | £128,520 |
| 58A Duffryn Street, Mountain Ash, Rhondda Cynon Taff Terraced, an established residential building | £56,500 | 2023-12-07 | £60,331 |
| 77 Duffryn Street, Mountain Ash, Rhondda Cynon Taff Terraced, an established residential building | £109,000 | 2023-11-17 | £115,655 |
| 82 Duffryn Street, Mountain Ash, Rhondda Cynon Taff Terraced, an established residential building | £85,000 | 2023-07-07 | £88,880 |
| 72 Duffryn Street, Mountain Ash, Rhondda Cynon Taff Terraced, an established residential building | £85,000 | 2022-11-14 | £85,766 |
| Full-Time Employee | 65 |
| Retired | 47 |
| Part-Time Employee | 26 |
| Long-Term Sick or disabled | 24 |
| Self-Employed | 15 |
| Unemployed | 10 |
| Looking after home or family | 8 |
| Other | 6 |
| Student (economically inactive) | 4 |
| Full-Time Student (with or without job) | 1 |
| Manufacturing | 18 |
| Human health and social work activities | 17 |
| Wholesale and retail trade; repair of motor vehicles and motor cycles | 16 |
| Construction | 9 |
| Other | 8 |
| Public administration and defence; compulsory social security | 5 |
| Financial and insurance activities | 4 |
| Administrative and support service activities | 4 |
| Accommodation and food service activities | 3 |
| Professional, scientific and technical activities | 3 |
| Education | 3 |
| Transport and storage | 2 |
| Information and communication | 1 |
| Ofsted Overall Effectiveness | Distance | Establishment Type | Has Nursery Classes | Gender | More Info | |
|---|---|---|---|---|---|---|
| Darrenlas Primary School Kingcraft Street , Darrenlas CF45 3LT | - not rated | 363 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Caegarw Primary School Troed Y Rhiw Road , Caegarw CF45 4BH | - not rated | 541 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Our Lady's R.C. Primary School Miskin Road , Miskin CF45 3UA | - not rated | 542 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Miskin Primary School York Street , Miskin CF45 3BG | - not rated | 846 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Mountain Ash Comprehensive School New Road , CF45 4DG | - not rated | 1,152 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 |
|---|---|---|---|
| Kalan | 76 Oxford Street | 90 yd | |
| The Little Rose Tea Room | The Hub, The Old Day Centre, Oxford Street | 143 yd | |
| Sugar Rush | 20 Oxford Street | 192 yd | |
| Stardust | 21b Oxford Street | 231 yd | |
| Providence Baptist Church | Union Street | 305 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| The Napiers Arms | 76-78 High Street | 124 yd | |
| Mountain Ash Workingmens Club | Oxford Street | 143 yd | |
| Nixons Workingmens Social Club | Oxford Street | 148 yd | |
| Mountain Ash RFC | Oxford Street | 221 yd | |
| New Inn | 8-10 Oxford Street | 221 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Mount Fish Bar | 1a Dover Street | 64 yd | |
| The Friery | 30 Oxford Street | 90 yd | |
| Tasty Kebab | 29 Oxford Street | 90 yd | |
| MusTaffas | 27b Oxford Street | 157 yd | |
| Little India | 25B Oxford Street | 165 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Iceland Frozen Foods Plc | 63-65 Oxford Street | 143 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 | 12.9% |
| Percentage of premises that have Ultrafast Broadband (300Mbit/s or greater) coverage from fixed broadband | 12.9% |
| Percentage of premises that have coverage from a Gigabit capable service from fixed broadband | 12.9% |
| 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 | 57.9 Mbit/s |
| Average download speed | 53 Mbit/s |
| Minimum download speed | 79.98 Mbit/s |
| Maximum download speed | 79.98 Mbit/s |
| Median upload speed | 17 Mbit/s |
| Average upload speed | 13.5 Mbit/s |
| Maximum upload speed | 20 Mbit/s |
Broadband statistics are based on Ofcom's Communications Market Report (CMR) 2022.