Treseifion Estate is in Holyhead and in Ynys Mon-Isle Of Anglesey district. LL65 2YN is located in the Ynys Gybi electoral ward, within the English Parliamentary constituency of Ynys M�n. This postcode has been in use since 1981-06-01.
StreetScan combines information about Treseifion Estate, Holyhead, LL65 2YN and displays a report on the quality of life in this place and its surroundings.
Nearby postcodes are: LL65 2NB, LL65 2LG, LL65 2SE, LL65 2SD, LL65 2NN, LL65 2LD, LL65 2AP, LL65 2QH, LL65 2RU.
In the UK, the overall gender distribution is approximately 49% male and 51% female. However, the area surrounding LL65 2YN, has a female population slightly higher than UK average, with 54.1% 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 | 50.9% | 54.1% | 3.2% | 51.0% | 3.1% |
| Male | 49.1% | 45.9% | -3.2% | 49.0% | -3.1% |
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 LL65 2YN, a significant portion of the population is single, making up 63.3% 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 | 61.6% | 63.3% | 1.7% | 37.9% | 25.4% |
| Married: Opposite sex | 21.7% | 16.8% | -4.9% | 44.2% | -27.4% |
| Separated | 2.5% | 3.1% | 0.6% | 2.2% | 0.9% |
| Divorced | 12.3% | 13.3% | 1.0% | 9.1% | 4.2% |
| Widowed | 2% | 3.6% | 1.6% | 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 | 50.9% | 45.3% | -5.6% | 48.4% | -3.1% |
| Good health | 32.1% | 33.5% | 1.4% | 33.6% | -0.1% |
| Fair health | 9.8% | 15.5% | 5.7% | 12.7% | 2.8% |
| Bad health | 5.9% | 5.4% | -0.5% | 4.0% | 1.4% |
| Very bad health | 1.4% | 0.4% | -1.0% | 1.2% | -0.8% |
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.
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 16.1%.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| No qualifications | 32% | 22.1% | -9.9% | 18.2% | 3.9% |
| 1-4 GCSEs or Equivalent | 21.7% | 15.1% | -6.6% | 9.6% | 5.5% |
| 5 or more GCSEs, an A-Level or 1-2 AS Levels | 18.7% | 14.1% | -4.6% | 13.4% | 0.7% |
| Apprenticeship | 2.5% | 6% | 3.5% | 5.3% | 0.7% |
| HNC, HND or 2+ A Levels | 12.8% | 21.1% | 8.3% | 16.9% | 4.2% |
| Degree or Similar | 10.8% | 16.1% | 5.3% | 33.8% | -17.7% |
| Other | 1.5% | 5.5% | 4.0% | 2.8% | 2.7% |
In this area, the population is predominantly white, with 98.9% 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) | |
|---|---|---|---|---|---|
| Chinese | 1% | 0% | -1.0% | 0.7% | -0.7% |
| Mixed White and Asian | 1% | 0% | -1.0% | 0.8% | -0.8% |
| Mixed White and African | 0% | 0.4% | 0.4% | 0.4% | 0.0% |
| Mixed White and Caribbean | 0.7% | 0.7% | 0.0% | 0.9% | -0.2% |
| Mixed Other | 2.1% | 0% | -2.1% | 0.8% | -0.8% |
| White | 94.4% | 98.9% | 4.5% | 81.4% | 17.5% |
| Gypsy or Irish Traveller | 0.3% | 0% | -0.3% | 0.1% | -0.1% |
| Other | 0.3% | 0% | -0.3% | 1.6% | -1.6% |
In this area, 97.1% 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 | 98.6% | 97.1% | -1.5% | 83.2% | 13.9% |
| European Union | 0.3% | 2.2% | 1.9% | 6.1% | -3.9% |
| Rest of Europe | 0% | 0.4% | 0.4% | 0.8% | -0.4% |
| Middle East and Asia | 0.7% | 0.4% | -0.3% | 5.6% | -5.2% |
| 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 | 98.6% | 96.1% | -2.5% | 83.2% | 12.9% |
| 10+ Years | 0% | 2.9% | 2.9% | 9.8% | -6.9% |
| 2-5 Years | 0% | 1.1% | 1.1% | 2.2% | -1.1% |
| Less than 2 years | 1.4% | 0% | -1.4% | 1.9% | -1.9% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| United Kingdom | 55.4% | 76.7% | -21.3% |
| Poland | 1.1% | 1.3% | -0.2% |
| Romania | 1.1% | 0.9% | 0.2% |
| No passport held | 42.5% | 13.5% | 29.0% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| No religion | 68.6% | 37.2% | 31.4% |
| Christian | 26.8% | 46.2% | -19.4% |
| Other religion | 0.7% | 0.6% | 0.1% |
| Not answered | 3.9% | 6.0% | -2.1% |
Over the last 12 months, the overall crime rate around Treseifion Estate was 124.5 per 1,000 residents, which is 21.1% higher than the Parc a'r Mynydd average. The most reported crime type was Violence and sexual offences.
Treseifion Estate has the 15th highest crime rate of 35 local areas in Parc a'r Mynydd and the 33rd highest crime rate of 224 local areas in Isle of Anglesey .
Violent and sexual offences accounted for around 80.6 crimes per 1,000 residents and have been rising year on year. Over the last decade, overall crime has fallen by about -34.1%.

Households in this area have a much lower level of wealth compared to the average household in England and Wales. 94% of analyzed areas in England and Wales have higher average household annual income than this area.

| Address | Sale Price | Sale Date | Price Estimate 2025 |
|---|---|---|---|
| 102 Treseifion Estate, Holyhead, Isle Of Anglesey Terraced, an established residential building | £135,000 | 2024-07-05 | £143,257 |
| 111A Treseifion Estate, Holyhead, Isle Of Anglesey Flats/Maisonettes, an established residential building | £59,000 | 2013-02-22 | £92,512 |
| 127 Treseifion Estate, Holyhead, Isle Of Anglesey Terraced, an established residential building | £106,000 | 2007-11-30 | £154,980 |
| 124 Treseifion Estate, Holyhead, Isle Of Anglesey Detached, an established residential building | £83,000 | 2004-01-05 | £189,150 |
| 97 Treseifion Estate, Holyhead, Isle Of Anglesey Terraced, an established residential building | £40,000 | 2002-12-20 | £145,087 |
| Full-Time Employee | 52 |
| Looking after home or family | 26 |
| Long-Term Sick or disabled | 25 |
| Retired | 24 |
| Part-Time Employee | 23 |
| Other | 15 |
| Unemployed | 12 |
| Self-Employed | 10 |
| Student (economically inactive) | 8 |
| Full-Time Student (with or without job) | 2 |
| Human health and social work activities | 18 |
| Wholesale and retail trade; repair of motor vehicles and motor cycles | 14 |
| Accommodation and food service activities | 9 |
| Public administration and defence; compulsory social security | 8 |
| Construction | 8 |
| Manufacturing | 7 |
| Transport and storage | 7 |
| Other | 5 |
| Education | 4 |
| Administrative and support service activities | 4 |
| Electricity, gas, steam and air conditioning supply | 3 |
| Agriculture, forestry and fishing | 2 |
| Information and communication | 2 |
| Financial and insurance activities | 1 |
| Ofsted Overall Effectiveness | Distance | Establishment Type | Has Nursery Classes | Gender | More Info | |
|---|---|---|---|---|---|---|
| Ysgol Santes Fair, St Mary' s R.C. School Longford Road , Holyhead LL65 1TR | - not rated | 706 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Ysgol Gynradd Kingsland Caergybi , LL65 2TH | - not rated | 746 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Ysgol Gymraeg Morswyn Caergybi , LL65 2TH | - not rated | 746 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Ysgol Llanfawr Caergybi , LL65 2DS | - not rated | 1,081 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Ysgol Uwchradd Caergybi Caergybi , LL65 1NP | - not rated | 1,096 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 |
|---|---|---|---|
| McDonalds | Mcdonalds Restaurant, Kingsland Road | 351 yd | |
| Stena Estrid | Stena House, Ferry Terminal, London Road | 553 yd | |
| M V Stena Adventurer | Stena House, Ferry Terminal, London Road | 553 yd | |
| Caffi Mon | London Road Community Centre, 15a London Road | 614 yd | |
| Ucheldre Centre | Ucheldre Centre, Mill Bank | 777 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Holland Hotel | Holland Hotel, Victoria Road | 621 yd | |
| Edinburgh Castle | Edinburgh Castle, London Road | 703 yd | |
| The Chester | Chester Inn, 9 Mill Bank | 777 yd | |
| Railway Club | British Rail Staff Association, Victoria Road | 883 yd | |
| Holyhead Hotspur Football club | New Oval Stadium, Kingsland | 970 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| The Angel | Old Station, Porthdafarch Road | 334 yd | |
| Lotus Garden | Lotus Garden 5 Church Terrace, Kingsland Road | 556 yd | |
| Fresco | 7 London Road | 628 yd | |
| Hong FU | 9 London Road | 628 yd | |
| Smashie's | 58-60 Market Street | 908 yd |
| Business Name | Address | Food hygiene rating | Distance |
|---|---|---|---|
| Asda Supermarket | Asda, Kingsland Road | 353 yd | |
| Lidl UK | Lidl Uk, Llanfawr Road | 684 yd | |
| Iceland Frozen Foods | Iceland Foods Plc, Cyttir Road | 833 yd | |
| Co-op | The Co-Operative, 45-49 Market Street | 922 yd | |
| Tesco Extra | Tesco Stores Ltd, Penrhos Industrial Estate | 1,057 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 | 61.3 Mbit/s |
| Average download speed | 57.3 Mbit/s |
| Minimum download speed | 80 Mbit/s |
| Maximum download speed | 80 Mbit/s |
| Median upload speed | 15.1 Mbit/s |
| Average upload speed | 14.7 Mbit/s |
| Maximum upload speed | 20 Mbit/s |
Broadband statistics are based on Ofcom's Communications Market Report (CMR) 2022.