LL66

59.6%

Highest — Isle of Anglesey 002C

70.6%

Median

59.6%

Lowest — Isle of Anglesey 001D

54.3%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

0.7%

Highest — Isle of Anglesey 001D

2.5%

Median

0.7%

Lowest — Isle of Anglesey 001B

0.2%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

18.8%

Highest — Isle of Anglesey 001B

29.9%

Median

18.8%

Lowest — Isle of Anglesey 001D

16.5%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

11.3%

Highest — Isle of Anglesey 001D

25.0%

Median

11.3%

Lowest — Isle of Anglesey 001B

9.5%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

29.7%

Highest — Isle of Anglesey 001D

37.2%

Median

29.7%

Lowest — Isle of Anglesey 001B

27.5%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

50.2%

Highest — Isle of Anglesey 001B

52.1%

Median

50.2%

Lowest — Isle of Anglesey 002C

49.8%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

49.8%

Highest — Isle of Anglesey 001D

50.2%

Median

49.8%

Lowest — Isle of Anglesey 001B

47.9%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

4.8%

Highest — Isle of Anglesey 001B

5.4%

Median

4.8%

Lowest — Isle of Anglesey 002C

4.2%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

1,621

Latest annual mid-year population estimate

Highest — Isle of Anglesey 002C

2,240

Median

1,621

Lowest — Isle of Anglesey 001C

1,144

Source period

mid-2024

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Unrounded estimates are published to support aggregation; that does not make them exact observations. This is an ONS mid-year estimate for the surrounding LSOA, not a count at this postcode and not a Census-day observation. Students are estimated at their term-time address. England and Wales only.

1,551

People counted in this neighbourhood on census day

Highest — Isle of Anglesey 002C

2,312

Median

1,551

Lowest — Isle of Anglesey 001C

1,177

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

The number of people usually resident in this neighbourhood. Census day was 21 March 2021, during coronavirus restrictions: students were largely counted at a parental address rather than a term-time one, and workplace populations were displaced. The census is taken once a decade, so this is now several years old. It describes the LSOA around this postcode — a neighbourhood of roughly 1,500 people — and not this address. Small counts are deliberately adjusted to protect confidentiality, so categories need not sum exactly to their totals and a difference of a person or two is noise. England and Wales only: Scotland ran its own census in 2022, published separately by National Records of Scotland.

50.2 per km²

Residents per square kilometre

Highest — Isle of Anglesey 001C

85.8 per km²

Median

50.2 per km²

Lowest — Isle of Anglesey 001D

31 per km²

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Residents per square kilometre across the whole neighbourhood, including any parks, water or farmland inside it, so it is not the density of the built-up part. Census day was 21 March 2021, during coronavirus restrictions: students were largely counted at a parental address rather than a term-time one, and workplace populations were displaced. The census is taken once a decade, so this is now several years old. It describes the LSOA around this postcode — a neighbourhood of roughly 1,500 people — and not this address. Small counts are deliberately adjusted to protect confidentiality, so categories need not sum exactly to their totals and a difference of a person or two is noise. England and Wales only: Scotland ran its own census in 2022, published separately by National Records of Scotland.

10

Live births registered for the surrounding LSOA in the latest calendar year

Highest — Isle of Anglesey 001D

13

Median

10

Lowest — Isle of Anglesey 001B

5

Source period

2025

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

This is an annual count for the whole LSOA, not births at this postcode. It includes a very small number of late registrations from the previous year and is not a fertility rate.

19

Deaths registered for residents of the surrounding LSOA in the latest calendar year

Highest — Isle of Anglesey 002C

34

Median

19

Lowest — Isle of Anglesey 001E

17

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

This is an annual count for the whole LSOA, not deaths at this postcode. ONS rounds small sub-regional counts for disclosure control, so it must not be treated as an exact event count or summed to reproduce a national total.

673

Households counted in the surrounding LSOA

Highest — Isle of Anglesey 002C

1,014

Median

673

Lowest — Isle of Anglesey 001B

581

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

A household is one person living alone or a group sharing accommodation and facilities. It is not the number of dwellings. Census day was 21 March 2021, during coronavirus restrictions. This describes the LSOA around the postcode, not a household or address. ONS applies statistical disclosure control, so small category counts are perturbed and components may differ slightly from the published total. England and Wales only; Scotland's Census was held separately in 2022.

14.7%

Share of residents aged 5 and over who are schoolchildren or full-time students

Highest — Isle of Anglesey 001D

18.7%

Median

14.7%

Lowest — Isle of Anglesey 001C

14.1%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

The denominator is all usual residents aged 5 and over. It is not the same definition as economic-activity student status. Census day was 21 March 2021, during coronavirus restrictions. This describes the LSOA around the postcode, not a household or address. ONS applies statistical disclosure control, so small category counts are perturbed and components may differ slightly from the published total. England and Wales only; Scotland's Census was held separately in 2022.

£32,217

Mean disposable income, adjusted for household size

Highest — Isle of Anglesey 002

£33,893

Median

£32,217

Lowest — Isle of Anglesey 001

£30,541

Source period

FYE 2023

How calculated

Range across complete intersecting source areas

Source areas

2 / 2

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Equivalised means adjusted for household size and composition on the modified-OECD scale, so a couple and a family of five can be compared. Do not read it as the cash a household receives. A modelled estimate for the financial year ending March 2023, not a measurement: ONS combine the Family Resources Survey with census and administrative data, and the method tends to pull estimates towards the average. Every figure carries a wide confidence interval — the true value could plausibly sit anywhere in it, so a difference between neighbouring areas may not be real. It is a mean, and income is skewed, so it sits above the typical household. The area is an MSOA of 2,000 to 6,000 households, several neighbourhoods rather than one street. England and Wales only: ONS publish no Scottish equivalent.

£45,280

Mean total annual income before tax

Highest — Isle of Anglesey 002

£47,425

Median

£45,280

Lowest — Isle of Anglesey 001

£43,135

Source period

FYE 2023

How calculated

Range across complete intersecting source areas

Source areas

2 / 2

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Total income of every household member before tax, including benefits and tax credits, and not adjusted for household size. A modelled estimate for the financial year ending March 2023, not a measurement: ONS combine the Family Resources Survey with census and administrative data, and the method tends to pull estimates towards the average. Every figure carries a wide confidence interval — the true value could plausibly sit anywhere in it, so a difference between neighbouring areas may not be real. It is a mean, and income is skewed, so it sits above the typical household. The area is an MSOA of 2,000 to 6,000 households, several neighbourhoods rather than one street. England and Wales only: ONS publish no Scottish equivalent.

£35,137

Mean disposable annual income after tax

Highest — Isle of Anglesey 002

£37,090

Median

£35,137

Lowest — Isle of Anglesey 001

£33,184

Source period

FYE 2023

How calculated

Range across complete intersecting source areas

Source areas

2 / 2

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

After income tax, national insurance, council tax and pension contributions, and not adjusted for household size. A modelled estimate for the financial year ending March 2023, not a measurement: ONS combine the Family Resources Survey with census and administrative data, and the method tends to pull estimates towards the average. Every figure carries a wide confidence interval — the true value could plausibly sit anywhere in it, so a difference between neighbouring areas may not be real. It is a mean, and income is skewed, so it sits above the typical household. The area is an MSOA of 2,000 to 6,000 households, several neighbourhoods rather than one street. England and Wales only: ONS publish no Scottish equivalent.

£33,242

Mean disposable income after rent or mortgage, adjusted for household size

Highest — Isle of Anglesey 002

£36,114

Median

£33,242

Lowest — Isle of Anglesey 001

£30,369

Source period

FYE 2023

How calculated

Range across complete intersecting source areas

Source areas

2 / 2

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

What is left after housing costs, adjusted for household size. In expensive areas this can be far below the before-housing-costs figure, which is the point of showing both. A modelled estimate for the financial year ending March 2023, not a measurement: ONS combine the Family Resources Survey with census and administrative data, and the method tends to pull estimates towards the average. Every figure carries a wide confidence interval — the true value could plausibly sit anywhere in it, so a difference between neighbouring areas may not be real. It is a mean, and income is skewed, so it sits above the typical household. The area is an MSOA of 2,000 to 6,000 households, several neighbourhoods rather than one street. England and Wales only: ONS publish no Scottish equivalent.

5

Active companies whose registered office is this postcode

Source period

2026-10

How calculated

Sum of complete unique source areas

Source areas

22 / 22

Counts companies whose REGISTERED OFFICE is this postcode. A registered office is not a place of business: accountants and company-formation agents register thousands of companies at a single address, so a large number here usually means one agent rather than a business district. Sole traders and ordinary partnerships are not on the register at all, so this undercounts businesses as most people use the word. Only companies with an active status on the monthly snapshot are counted; dissolved and liquidating companies are excluded. No address, company name or officer detail is stored or shown.

0

Registered at this postcode and incorporated within the year

Source period

2026-10

How calculated

Sum of complete unique source areas

Source areas

22 / 22

Of the active companies registered at this postcode, how many were incorporated in the twelve months before the snapshot. Company formation is cheap and common, and a new company is not a new business or a new job -- many never trade. Where a formation agent uses this postcode, this number counts the agent's throughput rather than local activity. No company or address detail is stored or shown.

5

Active companies across the whole postcode district

Source period

2026-10

Active companies registered anywhere in this postcode district, which covers a much wider area than the postcode itself. Registered offices are not trading premises, and a single formation agent in the district can dominate the total. Sole traders are not on the register.

51.5%

Highest — Isle of Anglesey 001D

58.9%

Median

51.5%

Lowest — Isle of Anglesey 001C

44.9%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

48.6%

Highest — Isle of Anglesey 001D

56.3%

Median

48.6%

Lowest — Isle of Anglesey 001C

41.3%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

34.5%

Highest — Isle of Anglesey 001B

41.3%

Median

34.5%

Lowest — Isle of Anglesey 001D

25.5%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

12.5%

Highest — Isle of Anglesey 001E

13.2%

Median

12.5%

Lowest — Isle of Anglesey 001B

9.0%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

2.6%

Highest — Isle of Anglesey 001C

3.5%

Median

2.6%

Lowest — Isle of Anglesey 001E

2.2%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

22.0%

Highest — Isle of Anglesey 001E

27.6%

Median

22.0%

Lowest — Isle of Anglesey 001C

18.1%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

1,270 kWh/m²

Energy falling on a square metre of optimally angled panel

Highest — LL66 0

1,275 kWh/m²

Median

1,270 kWh/m²

Lowest — LL66 9

1,265 kWh/m²

Source period

2005-2023

How calculated

Range across complete intersecting source areas

Source areas

2 / 2

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Modelled from satellite observations averaged over 2005-2023 for an unshaded surface at the best angle, at a point in this postcode sector. It is a property of the location and the weather, not of any building: roof pitch, direction, and shading from trees and neighbouring buildings all change what reaches an actual panel, and none of them is known here. Source: PVGIS © European Communities, 2001-2026.

4,020 kWh

A standard domestic array at the best angle, over a year

Highest — LL66 0

4,039 kWh

Median

4,020 kWh

Lowest — LL66 9

4,000 kWh

Source period

2005-2023

How calculated

Range across complete intersecting source areas

Source areas

2 / 2

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

A modelled figure for a 4 kWp roof-mounted array facing the best direction at the best angle with nothing shading it, assuming 14% system losses. It is what this LOCATION could support, not a prediction for any particular house. A north-facing roof yields around 40% of a south-facing one at the same address, and shading from a single tree can cost more than moving hundreds of miles north. Source: PVGIS © European Communities, 2001-2026.

40°

The slope that captures most energy over a year here

Highest — LL66 9

40°

Median

40°

Lowest — LL66 0

40°

Source period

2005-2023

How calculated

Range across complete intersecting source areas

Source areas

2 / 2

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

The tilt that would collect the most energy over a year at this latitude. A real installation follows the roof it is fixed to, and a fixed angle a few degrees away from optimum costs very little. Source: PVGIS © European Communities, 2001-2026.

4.06 µg/m³

Annual average fine particulate matter

Highest — SH4190

4.15 µg/m³

Median

4.06 µg/m³

Lowest — SH3892

3.97 µg/m³

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

16 / 16

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Modelled annual average for the 1 km grid square containing this postcode — an estimate from Defra's national air-quality model, not a measurement taken here. It is a BACKGROUND concentration: the roadside increment is deliberately excluded, so streets beside busy roads inside this square are worse than this figure. Model methodology changes between years, so year-on-year comparisons are indicative.

6.72 µg/m³

Annual average coarse particulate matter

Highest — SH3988

7.34 µg/m³

Median

6.72 µg/m³

Lowest — SH3892

6.39 µg/m³

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

16 / 16

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Modelled annual average for the 1 km grid square containing this postcode — an estimate from Defra's national air-quality model, not a measurement taken here. It is a BACKGROUND concentration: the roadside increment is deliberately excluded, so streets beside busy roads inside this square are worse than this figure. Model methodology changes between years, so year-on-year comparisons are indicative.

1.4 µg/m³

Annual average NO₂

Highest — SH3786

1.46 µg/m³

Median

1.4 µg/m³

Lowest — SH4191

1.36 µg/m³

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

16 / 16

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Modelled annual average for the 1 km grid square containing this postcode — an estimate from Defra's national air-quality model, not a measurement taken here. It is a BACKGROUND concentration: the roadside increment is deliberately excluded, so streets beside busy roads inside this square are worse than this figure. Model methodology changes between years, so year-on-year comparisons are indicative.

1.69 µg/m³ as NO₂

Annual average NOx, expressed as NO₂

Highest — SH3786

1.77 µg/m³ as NO₂

Median

1.69 µg/m³ as NO₂

Lowest — SH4191

1.64 µg/m³ as NO₂

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

16 / 16

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Modelled annual average for the 1 km grid square containing this postcode — an estimate from Defra's national air-quality model, not a measurement taken here. It is a BACKGROUND concentration: the roadside increment is deliberately excluded, so streets beside busy roads inside this square are worse than this figure. Model methodology changes between years, so year-on-year comparisons are indicative.

0.41 µg/m³

Annual average SO₂

Highest — SH3791

0.42 µg/m³

Median

0.41 µg/m³

Lowest — SH4190

0.4 µg/m³

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

16 / 16

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Modelled annual average for the 1 km grid square containing this postcode — an estimate from Defra's national air-quality model, not a measurement taken here. It is a BACKGROUND concentration: the roadside increment is deliberately excluded, so streets beside busy roads inside this square are worse than this figure. Model methodology changes between years, so year-on-year comparisons are indicative.

0.07 µg/m³

Annual average benzene

Highest — SH3791

0.08 µg/m³

Median

0.07 µg/m³

Lowest — SH4189

0.07 µg/m³

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

16 / 16

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Modelled annual average for the 1 km grid square containing this postcode — an estimate from Defra's national air-quality model, not a measurement taken here. It is a BACKGROUND concentration: the roadside increment is deliberately excluded, so streets beside busy roads inside this square are worse than this figure. Model methodology changes between years, so year-on-year comparisons are indicative.

0.95 days

Days a year the 8-hour ozone target is exceeded

Highest — SH4191

0.98 days

Median

0.95 days

Lowest — SH3786

0.94 days

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

16 / 16

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Defra's published ozone metric: the modelled number of days on which the daily maximum running 8-hour concentration exceeds 120 µg/m³. It is not an annual average concentration, and Defra publish no such figure for ozone. Modelled for the 1 km square containing this postcode, not measured here, and a background estimate that excludes the roadside increment.

Estimated share of homes above the radon Action Level

1 to 3% of homes above the Action Level

5

10 to 30% of homes above the Action Level

0

3 to 5% of homes above the Action Level

6

30% or more of homes above the Action Level

0

5 to 10% of homes above the Action Level

0

Less than 1% of homes above the Action Level

5

Source period

2021

How calculated

Counts using consistent category definitions

Source areas

16 / 16

This is the estimated chance that a home in this 1 km square exceeds the 200 Bq/m³ radon Action Level. It is NOT a measurement of radon at this address, and no map can tell you what any individual property contains — only a test in the property itself can, over three to six months. The mapping is also deliberately precautionary: BGS class each square by the HIGHEST radon potential found anywhere within it, so most homes in a square have a lower potential than the band shown. It does not apply to basements, cellars or underground rooms at all, which should be treated as higher risk wherever they are. For a definitive assessment of a specific address, UKHSA's UKradon service sells an address report.

Whether UKHSA classify this square as radon affected

No — this square is below the Affected Area threshold

5

Yes — this square is within a radon Affected Area

11

Source period

2021

How calculated

Counts using consistent category definitions

Source areas

16 / 16

UKHSA define a radon Affected Area as one where at least one home in a hundred is expected to exceed the Action Level. This applies that definition to the indicative 1 km band, so it inherits the same precaution: the square is classed by its worst point, and most homes inside an Affected Area are not above the Action Level. Being inside one is a reason to test, not a finding about this property.

21.9%

Highest — Isle of Anglesey 001C

24.6%

Median

21.9%

Lowest — Isle of Anglesey 001D

17.5%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.

10.9%

Highest — Isle of Anglesey 001C

13.3%

Median

10.9%

Lowest — Isle of Anglesey 001D

10.4%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

5 / 5

Variation across complete unique intersecting source areas; this is not a recomputed page-level statistic.

Use England/Wales Census 2021, Scotland Census 2022 or NISRA Census 2021 according to country; these are area characteristics, not attributes of an individual postcode household.