LL55 3BT is in Penisarwaun, Caernarfon and Gwynedd district. LL55 3BT is located in the Penisa'r-waun electoral ward, within the English Parliamentary constituency of Arfon. This postcode has been in use since 1980-01-01.
StreetScan combines information about Penisarwaun, Caernarfon, LL55 3BT and displays a report on the quality of life in this place and its surroundings.
In the UK, the overall gender distribution is approximately 49% male and 51% female. However, the area surrounding LL55 3BT, has a female population slightly higher than UK average, with 52.1% 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% | 52.1% | 1.2% | 51.0% | 1.1% |
| Male | 49.1% | 47.9% | -1.2% | 49.0% | -1.1% |
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 | 42.3% | 40.2% | -2.1% | 37.9% | 2.3% |
| Married: Opposite sex | 37.2% | 38.7% | 1.5% | 44.2% | -5.5% |
| Married: Same sex | 1% | 0.5% | -0.5% | 0.3% | 0.2% |
| Civil partnership: Opposite sex | 0% | 1.5% | 1.5% | 0.1% | 1.4% |
| Separated | 2% | 2% | 0.0% | 2.2% | -0.2% |
| Divorced | 10.2% | 13.6% | 3.4% | 9.1% | 4.5% |
| Widowed | 7.1% | 3.5% | -3.6% | 6.1% | -2.6% |
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% | 53.8% | 2.9% | 48.4% | 5.4% |
| Good health | 34.6% | 26.1% | -8.5% | 33.6% | -7.5% |
| Fair health | 11.4% | 14.5% | 3.1% | 12.7% | 1.8% |
| Bad health | 2.6% | 4.3% | 1.7% | 4.0% | 0.3% |
| Very bad health | 0.4% | 1.3% | 0.9% | 1.2% | 0.1% |
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.
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| No qualifications | 25.5% | 15.2% | -10.3% | 18.2% | -3.0% |
| 1-4 GCSEs or Equivalent | 10.2% | 5.6% | -4.6% | 9.6% | -4.0% |
| 5 or more GCSEs, an A-Level or 1-2 AS Levels | 12.8% | 16.7% | 3.9% | 13.4% | 3.3% |
| Apprenticeship | 4.6% | 7.1% | 2.5% | 5.3% | 1.8% |
| HNC, HND or 2+ A Levels | 13.3% | 18.7% | 5.4% | 16.9% | 1.8% |
| Degree or Similar | 31.6% | 36.9% | 5.3% | 33.8% | 3.1% |
| Other | 2% | 0% | -2.0% | 2.8% | -2.8% |
In this area, the population is predominantly white, with 98.7% 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 | 0% | 1.3% | 1.3% | 0.7% | 0.6% |
| White | 100% | 98.7% | -1.3% | 81.4% | 17.3% |
In this area, 97.4% 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 | 99.1% | 97.4% | -1.7% | 83.2% | 14.2% |
| European Union | 0.4% | 0.9% | 0.5% | 6.1% | -5.2% |
| Rest of Europe | 0% | 0.4% | 0.4% | 0.8% | -0.4% |
| Middle East and Asia | 0% | 1.3% | 1.3% | 5.6% | -4.3% |
| Oceania | 0.4% | 0% | -0.4% | 0.3% | -0.3% |
| 2011 | 2021 | 10y change (pp) | UK Average | postcode vs UK (pp) | |
|---|---|---|---|---|---|
| Born in the UK | 99.1% | 97.4% | -1.7% | 83.2% | 14.2% |
| 10+ Years | 0% | 2.1% | 2.1% | 9.8% | -7.7% |
| 5-10 Years | 0% | 0.4% | 0.4% | 2.9% | -2.5% |
| Less than 2 years | 0.9% | 0% | -0.9% | 1.9% | -1.9% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| United Kingdom | 78.3% | 76.7% | 1.6% |
| Italy | 0.4% | 0.6% | -0.2% |
| Portugal | 0.4% | 0.5% | -0.1% |
| No passport held | 20.9% | 13.5% | 7.4% |
| 2021 | UK Average | postcode vs UK (pp) | |
|---|---|---|---|
| No religion | 45.3% | 37.2% | 8.1% |
| Christian | 48.3% | 46.2% | 2.1% |
| Hindu | 0.4% | 1.7% | -1.3% |
| Not answered | 5.9% | 6.0% | -0.1% |
Over the last 12 months, the overall crime rate around LL55 3BT was 53.3 per 1,000 residents, which is 30.1% lower than the Arllechwedd average. The most reported crime type was Violence and sexual offences.
LL55 3BT has the 21st lowest crime rate of 47 local areas in Arllechwedd and the 176th lowest crime rate of 394 local areas in Gwynedd .
Violent and sexual offences accounted for around 35.6 crimes per 1,000 residents and have been rising year on year. Over the last decade, overall crime has fallen by about -20.6%.

Households in this area have a lower level of wealth compared to the average household in England and Wales. 73% of analyzed areas in England and Wales have higher average household annual income than this area.

| Address | Sale Price | Sale Date | Price Estimate 2025 |
|---|---|---|---|
| Caerffynnon, Caernarfon, Gwynedd Detached, an established residential building | £232,500 | 2016-12-21 | £311,962 |
| Caerffynnon, Caernarfon, Gwynedd Detached, an established residential building | £170,000 | 2012-04-12 | £257,021 |
| Bod Idris, Caernarfon, Gwynedd Semi-Detached, an established residential building | £34,000 | 1996-06-20 | £185,111 |
LL55 3BT area has a high level of entrepreneurship. Only 20% of streets have higher percent of entrepreneur residents. 13% 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.
LL55 3BT 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 | 65 |
| Retired | 49 |
| Self-Employed | 25 |
| Part-Time Employee | 23 |
| Looking after home or family | 10 |
| Long-Term Sick or disabled | 10 |
| Student (economically inactive) | 8 |
| Unemployed | 6 |
| Full-Time Student (with or without job) | 3 |
| Other | 1 |
| Human health and social work activities | 16 |
| Education | 16 |
| Public administration and defence; compulsory social security | 15 |
| Wholesale and retail trade; repair of motor vehicles and motor cycles | 15 |
| Construction | 13 |
| Manufacturing | 10 |
| Accommodation and food service activities | 7 |
| Other | 6 |
| Professional, scientific and technical activities | 3 |
| Financial and insurance activities | 2 |
| Information and communication | 2 |
| Administrative and support service activities | 2 |
| Transport and storage | 1 |
| Electricity, gas, steam and air conditioning supply | 1 |
| Mining and quarrying | 1 |
| Agriculture, forestry and fishing | 1 |
| Ofsted Overall Effectiveness | Distance | Establishment Type | Has Nursery Classes | Gender | More Info | |
|---|---|---|---|---|---|---|
| Ysgol Gymuned Penisarwaun Penisarwaen , Caernarfon LL55 3BW | - not rated | 337 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Ysgol Brynrefail Llanrug , Caernarfon LL55 4AD | - not rated | 2,178 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Ysgol Llanrug Caernarfon , LL55 4AL | - not rated | 2,316 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Ysgol Gwaun Gynfi Deiniolen , LL55 3LT | - not rated | 2,654 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
| Ysgol Gynradd Rhiwlas Rhiwlas , Bangor LL57 4EH | - not rated | 3,091 yd | Welsh establishment | Not Applicable | Not applicable | More About School |
School statistics for this postcode are based on Ofsted rankings.
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% |
Broadband statistics are based on Ofcom's Communications Market Report (CMR) 2022.