SG

22.2%

Highest — North Hertfordshire 009D

80.4%

Median

22.2%

Lowest — Stevenage 003B

0.4%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

10.2%

Highest — Stevenage 008E

85.0%

Median

10.2%

Lowest — Central Bedfordshire 011E

0.0%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

30.2%

Highest — Central Bedfordshire 006A

73.9%

Median

30.2%

Lowest — Stevenage 008E

1.1%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

23.2%

Highest — Stevenage 007A

82.2%

Median

23.2%

Lowest — North Hertfordshire 009D

1.0%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

41.5%

Highest — Stevenage 001E

62.6%

Median

41.5%

Lowest — Central Bedfordshire 004D

26.5%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

51.1%

Highest — East Hertfordshire 012C

54.9%

Median

51.1%

Lowest — Central Bedfordshire 011E

46.1%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

48.9%

Highest — Central Bedfordshire 011E

53.9%

Median

48.9%

Lowest — East Hertfordshire 012C

45.1%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

5.0%

Highest — East Hertfordshire 018D

22.8%

Median

5.0%

Lowest — East Hertfordshire 017G

2.0%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

1,667

Latest annual mid-year population estimate

Highest — South Cambridgeshire 010A

3,392

Median

1,667

Lowest — North Hertfordshire 004A

1,031

Source period

mid-2024

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

1,629

People counted in this neighbourhood on census day

Highest — Central Bedfordshire 014F

2,893

Median

1,629

Lowest — North Hertfordshire 004A

1,039

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

2,272.75 per km²

Residents per square kilometre

Highest — Stevenage 001B

9,208.7 per km²

Median

2,272.75 per km²

Lowest — North Hertfordshire 016E

33.3 per km²

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

16

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

Highest — Central Bedfordshire 011D

46

Median

16

Lowest — Central Bedfordshire 004A

3

Source period

2025

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

13

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

Highest — East Hertfordshire 012C

57

Median

13

Lowest — North Hertfordshire 017D

0

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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 — North Hertfordshire 012F

1,305

Median

673

Lowest — South Cambridgeshire 019A

419

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

18.6%

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

Highest — East Hertfordshire 018D

40.8%

Median

18.6%

Lowest — East Hertfordshire 017G

9.0%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

£42,947

Mean disposable income, adjusted for household size

Highest — East Hertfordshire 016

£50,249

Median

£42,947

Lowest — Stevenage 006

£37,367

Source period

FYE 2023

How calculated

Range across complete intersecting source areas

Source areas

64 / 64

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.

£67,422

Mean total annual income before tax

Highest — Welwyn Hatfield 001

£82,666

Median

£67,422

Lowest — Stevenage 006

£50,747

Source period

FYE 2023

How calculated

Range across complete intersecting source areas

Source areas

64 / 64

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.

£48,109

Mean disposable annual income after tax

Highest — Welwyn Hatfield 015

£58,319

Median

£48,109

Lowest — Stevenage 006

£38,903

Source period

FYE 2023

How calculated

Range across complete intersecting source areas

Source areas

64 / 64

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.

£39,677

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

Highest — Welwyn Hatfield 015

£49,543

Median

£39,677

Lowest — Stevenage 008

£31,213

Source period

FYE 2023

How calculated

Range across complete intersecting source areas

Source areas

64 / 64

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.

31,897

Active companies whose registered office is this postcode

Source period

2026-10

How calculated

Sum of complete unique source areas

Source areas

12172 / 12172

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.

3,420

Registered at this postcode and incorporated within the year

Source period

2026-10

How calculated

Sum of complete unique source areas

Source areas

12172 / 12172

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.

65.2%

Highest — Central Bedfordshire 006I

85.2%

Median

65.2%

Lowest — North Hertfordshire 012E

49.1%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

62.5%

Highest — Central Bedfordshire 006I

83.9%

Median

62.5%

Lowest — North Hertfordshire 012E

48.1%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

21.8%

Highest — North Hertfordshire 012E

37.9%

Median

21.8%

Lowest — Stevenage 001E

3.3%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

10.4%

Highest — Welwyn Hatfield 015C

18.3%

Median

10.4%

Lowest — Stevenage 008E

5.0%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

2.5%

Highest — South Cambridgeshire 013D

5.4%

Median

2.5%

Lowest — South Cambridgeshire 018A

0.8%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

37.9%

Highest — East Hertfordshire 014E

60.5%

Median

37.9%

Lowest — Central Bedfordshire 001A

16.6%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

61

Modelled number of fuel-poor households in this neighbourhood, 2024

Highest — North Hertfordshire 010A

144

Median

61

Lowest — Central Bedfordshire 006I

13

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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

A modelled count, not a list of households. A neighbourhood with more homes will show a bigger number without being worse off, which is why the proportion beside it is the figure to read. A MODELLED estimate for the neighbourhood (LSOA) around this postcode for 2024, not a measurement and not a statement about any household here. England measures fuel poverty with the Low Income Low Energy Efficiency (LILEE) definition: a home rated D or worse for energy efficiency whose residual income after modelled energy costs falls below the poverty line. It is not a count of households unable to afford heating, and it is not a bill. The publisher states that small-area estimates "should only be used to look at general trends and identify areas of particularly high or low fuel poverty. They should not be used to identify trends over time within an LSOA, or to compare LSOAs with similar fuel poverty levels due to very small sample sizes and consequent instability". Scotland and Wales define fuel poverty differently and their figures are not on this scale.

8.3%

Modelled share of homes in this neighbourhood that are fuel poor, 2024

Highest — Central Bedfordshire 004A

22.1%

Median

8.3%

Lowest — Central Bedfordshire 006I

2.4%

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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

The headline figure, and the one the publisher intends to be read. A MODELLED estimate for the neighbourhood (LSOA) around this postcode for 2024, not a measurement and not a statement about any household here. England measures fuel poverty with the Low Income Low Energy Efficiency (LILEE) definition: a home rated D or worse for energy efficiency whose residual income after modelled energy costs falls below the poverty line. It is not a count of households unable to afford heating, and it is not a bill. The publisher states that small-area estimates "should only be used to look at general trends and identify areas of particularly high or low fuel poverty. They should not be used to identify trends over time within an LSOA, or to compare LSOAs with similar fuel poverty levels due to very small sample sizes and consequent instability". Scotland and Wales define fuel poverty differently and their figures are not on this scale.

706

Modelled number of homes in the LSOA, 2024

Highest — North Hertfordshire 012F

1,372

Median

706

Lowest — East Hertfordshire 001G

452

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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

The denominator the proportion is worked out from, published as modelled rather than counted. It is close to but not the same as a census household count. A MODELLED estimate for the neighbourhood (LSOA) around this postcode for 2024, not a measurement and not a statement about any household here. England measures fuel poverty with the Low Income Low Energy Efficiency (LILEE) definition: a home rated D or worse for energy efficiency whose residual income after modelled energy costs falls below the poverty line. It is not a count of households unable to afford heating, and it is not a bill. The publisher states that small-area estimates "should only be used to look at general trends and identify areas of particularly high or low fuel poverty. They should not be used to identify trends over time within an LSOA, or to compare LSOAs with similar fuel poverty levels due to very small sample sizes and consequent instability". Scotland and Wales define fuel poverty differently and their figures are not on this scale.

1,272 kWh/m²

Energy falling on a square metre of optimally angled panel

Highest — SG8 7

1,292 kWh/m²

Median

1,272 kWh/m²

Lowest — SG5 1

1,259 kWh/m²

Source period

2005-2023

How calculated

Range across complete intersecting source areas

Source areas

63 / 63

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.

4,009 kWh

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

Highest — SG8 6

4,081 kWh

Median

4,009 kWh

Lowest — SG5 1

3,973 kWh

Source period

2005-2023

How calculated

Range across complete intersecting source areas

Source areas

63 / 63

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 — SG19 3

41°

Median

40°

Lowest — SG1 1

40°

Source period

2005-2023

How calculated

Range across complete intersecting source areas

Source areas

63 / 63

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.

6.87 µg/m³

Annual average fine particulate matter

Highest — TL2333

8.65 µg/m³

Median

6.87 µg/m³

Lowest — TL4142

6.59 µg/m³

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

1014 / 1014

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.

12.07 µg/m³

Annual average coarse particulate matter

Highest — TL2333

14.06 µg/m³

Median

12.07 µg/m³

Lowest — TL4221

11.08 µg/m³

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

1014 / 1014

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.

6.31 µg/m³

Annual average NO₂

Highest — TL2323

15.5 µg/m³

Median

6.31 µg/m³

Lowest — TL4340

4.75 µg/m³

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

1014 / 1014

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.

7.95 µg/m³ as NO₂

Annual average NOx, expressed as NO₂

Highest — TL2323

21.23 µg/m³ as NO₂

Median

7.95 µg/m³ as NO₂

Lowest — TL4340

5.91 µg/m³ as NO₂

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

1014 / 1014

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.

0.87 µg/m³

Annual average SO₂

Highest — TL2333

3.67 µg/m³

Median

0.87 µg/m³

Lowest — TL4233

0.53 µg/m³

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

1014 / 1014

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.

0.32 µg/m³

Annual average benzene

Highest — TL1930

0.51 µg/m³

Median

0.32 µg/m³

Lowest — TL3551

0.26 µg/m³

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

1014 / 1014

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.

3.19 days

Days a year the 8-hour ozone target is exceeded

Highest — TL4540

3.54 days

Median

3.19 days

Lowest — TL2323

2.19 days

Source period

2024

How calculated

Range across complete intersecting source areas

Source areas

1014 / 1014

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

342

10 to 30% of homes above the Action Level

0

3 to 5% of homes above the Action Level

0

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

672

Source period

2021

How calculated

Counts using consistent category definitions

Source areas

1014 / 1014

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

672

Yes — this square is within a radon Affected Area

342

Source period

2021

How calculated

Counts using consistent category definitions

Source areas

1014 / 1014

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.

15.3%

Highest — Stevenage 009A

30.6%

Median

15.3%

Lowest — East Hertfordshire 016A

8.3%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.

8.7%

Highest — Central Bedfordshire 006J

13.0%

Median

8.7%

Lowest — Central Bedfordshire 003E

5.1%

Source period

Census 2021

How calculated

Range across complete intersecting source areas

Source areas

274 / 274

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.