A best-fit lookup between postcodes, frozen 2011 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and current local authority districts (LAD) as at May 2022 in the UK. Postcodes are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 24 MB).Field Names - PCD7, PCD8, PCDS, DOINTR, DOTERM, USERTYPE, OA11CD, LSOA11CD, MSOA11CD, LADCD, LSOA11NM, MSOA11NM, LADNM, LADNMWField Types - All TextField Lengths - 7, 8, 8, 8, 8, 1, 9, 9, 9, 9, 55, 65, 45, 45

A best-fit lookup between postcodes, 2021 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and local authority districts (LAD). Postcodes are as at November 2023 in the UK and are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 22 MB).Field Names - PCD7, PCD8, PCDS, DOINTR, DOTERM, USERTYPE, OA21CD, LSOA21CD, MSOA21CD, LADCD, LSOA21NM, MSOA21NM, LADNM, LADNMWField Types - All TextField Lengths - 7, 8, 8, 8, 8, 1, 9, 9, 9, 9, 55, 65, 45, 45

A best-fit lookup between enumeration postcodes, Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and local authority districts (LAD) as at 31 December 2011 in England and Wales. Postcodes are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. Enumeration postcodes are a sub-OA geography used only for the publication of estimates of males, females and households in the 2011 Census. The 2011 Census enumeration postcodes consist only of valid unit postcodes as at May 2011.

The LSOA atlas provides a summary of demographic and related data for each Lower Super Output Area in Greater London. The average population of an LSOA in London in 2010 was 1,722 compared with 8,346 for an MSOA and 13,078 for a ward. The profiles are designed to provide an overview of the population in these small areas by combining a range of data on the population, diversity, households, health, housing, crime, benefits, land use, deprivation, schools, and employment. Due to significant population change in some areas, not all 2011 LSOA boundaries are the same as previous LSOA boundaries that had been used from 2001. A lot of data is still only available using the 2001 boundaries therefore two Atlases have been created - one using the current LSOA boundaries (2011) and one using the previous boundaries (2001). If you need to find an LSOA and you know the postcode of the area, the ONS NESS search page has a tool for this. The LSOA Atlas is available as an XLS as well as being presented using InstantAtlas mapping software. This is a useful tool for displaying a large amount of data for numerous geographies, in one place (requires HTML 5). CURRENT LSOA BOUNDARIES (2011) NOTE: There is comparatively less data for the new boundaries compared with the old boundaries PREVIOUS LSOA BOUNDARIES (2001) For 2011 Census data used in the 2001 Boundaries Atlas: For simplicity, where two or more areas have been merged, the figures for these areas have been divided by the number of LSOAs that used to make that area up. Therefore, these data are not official ONS statisitcs, but presented here as indicative to display trends. NB. It is currently not possible to export the map as a picture due to a software issue with the Google Maps background. We advise you to print screen to copy an image to the clipboard. IMPORTANT: Due to the large amount of data and areas, the LSOA Atlas may take up to a minute to fully load. Once loaded, the report will work more efficiently by using the filter tool and selecting one borough at a time. Displaying every LSOA in London will slow down the data reload. Tips: - Select a new indicator from the Data box on the left. Select the theme, then indicator and then year to show the data. - To view data just for one borough, use the filter tool. - The legend settings can be altered by clicking on the pencil icon next to the LSOA tick box within the map legend. - The areas can be ranked in order by clicking at the top of the indicator column of the data table. Beware of large file size for 2001 Boundary Atlas (58MB) alternatively download Zip file (21MB). Themes included in the atlases are Census 2011 population, Mid-year Estimates by age, Population Density, Households, Household Composition, Ethnic Group, Language, Religion, Country of Birth, Tenure, Number of dwellings, Vacant Dwellings, Dwellings by Council Tax Band, Crime (numbers), Crime (rates), Economic Activity, Qualifications, House Prices, Workplace employment numbers, Claimant Count, Employment and Support Allowance, Benefits claimants, State Pension, Pension Credit, Incapacity Benefit/ SDA, Disability Living Allowance, Income Support, Financial vulnerability, Health and Disability, Land use, Air Emissions, Energy consumption, Car or Van access, Accessibility by Public Transport/walk, Road Casualties, Child Benefit, Child Poverty, Lone Parent Families, Out-of-Work families, Fuel Poverty, Free School Meals, Pupil Absence, Early Years Foundation Stage, Key Stage 1, Key Stage 2, GCSE, Level 3 (e.g A/AS level), The Indices of Deprivation 2010, Economic Deprivation Index, and The IMD 2010 Underlying Indicators. The London boroughs are: City of London, Barking and Dagenham, Barnet, Bexley, Brent, Bromley, Camden, Croydon, Ealing, Enfield, Greenwich, Hackney, Hammersmith and Fulham, Haringey, Harrow, Havering, Hillingdon, Hounslow, Islington, Kensington and Chelsea, Kingston upon Thames, Lambeth, Lewisham, Merton, Newham, Redbridge, Richmond upon Thames, Southwark, Sutton, Tower Hamlets, Waltham Forest, Wandsworth, Westminster. These profiles were created using the most up to date information available at the time of collection (Spring 2014). You may also be interested in MSOA Atlas and Ward Atlas.

A best-fit lookup between postcodes, frozen 2011 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and current local authority districts (LAD) as at February 2019 in the UK. Postcodes are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 392 MB).Field Names - PCD7, PCD8, PCDS, DOINTR, DOTERM, USERTYPE, OA11CD, LSOA11CD, MSOA11CD, LADCD, LSOA11NM, MSOA11NM, LADNM, LADNMWField Types - Text, Text, Text, Text, Text, Text, Text, Text, Text, Text, Text, Text, Text, TextField Lengths - 7, 8, 8, 8, 8, 1, 9, 9, 9, 9, 55, 65, 45, 45

Data History Data Origin These samples were taken from customer taps. They were then analysed for water quality, and the results were uploaded to a database. This dataset is an extract from this database. Data Triage ConsiderationsGranularity We decided to share as individual results as the lowest level of granularity.Anonymisation It is a requirement that this data cannot be used to identify a singular person or household. We discussed many options for aggregating the data to a specific geography to ensure this requirement is met. The following geographical aggregations were discussed:Water Supply Zone (WSZ) - Limits interoperability with other datasets.Postcode – Some postcodes contain very few households and may not offer necessary anonymisation.Postal Sector – Deemed not granular enough in highly populated areas.Rounded Co-ordinates – Not a recognised standard and may cause overlapping areas.MSOA – Deemed not granular enough.LSOA – Agreed as a recognised standard appropriate for England and Wales.Data Zones – Agreed as a recognised standard appropriate for Scotland.Preferred: Geospatial to LSOA.Why is Geospatial to LSOA preferred? It is more accurate since the postcode mapping is best fitted by plotting the location of the postcode's mean address rather than sample point’s specific location.Data Specifications Each dataset will cover a calendar year of samples:This dataset will be published monthly.Historical datasets will be published as far back as 2022 following the introduction of the Water Supply Regulations. https://www.legislation.gov.uk/uksi/2016/614/contents/made The Determinands included in the dataset are as per the list that is required to be reported to the Drinking Water Inspectorate.ContextMany UK water companies provide a search tool on their websites where you can search for water quality in your area by postcode. The results of the search may identify the water supply zone that supplies the postcode searched. Water supply zones are not linked to LSOAs which means the results may differ to this dataset.Some sample results are influenced by internal plumbing and may not be representative of drinking water quality in the wider area. In this case these test results are omitted from the dataset.Some samples are tested on site and others are sent to scientific laboratories.Data Publish FrequencyMonthly.Data Triage Review FrequencyAnnually unless otherwise requestedSupplementary information Below is a curated selection of links for additional reading, which provide a deeper understanding of this dataset.Drinking Water Inspectorate Standards and Regulations: https://www.dwi.gov.uk/drinking-water-standards-and-regulations/ LSOA (England and Wales) and Data Zone (Scotland): https://www.nrscotland.gov.uk/files/geography/2011-census/geography-bckground-info-comparison-of-thresholds.pdf  Description for LSOA boundaries by the ONS: Census 2021 geographies - Office for National Statistics (ons.gov.uk) Postcode to LSOA lookup tables:  Postcode to 2021 Census Output Area to Lower Layer Super Output Area to Middle Layer Super Output Area to Local Authority District (August 2023) Lookup in the UK (statistics.gov.uk) Legislation history: Legislation - Drinking Water Inspectorate (dwi.gov.uk) Dataset SchemaSAMPLE_ID: Identity of the sampleSAMPLE_DATE: The date the sample was takenDETERMINAND: The determinand being measured DWI_CODE: The corresponding DWI code for the determinand UNITS: The expression of resultsOPERATOR: The measurement operator for limit of detection RESULT: The test resultsLSOA or DATA ZONE: Lower Super Output Area or Data Zone (population weighted centroids used by the ONS (Office for National Statistics) for geo-anonymisation)

Understanding Society (the UK Household Longitudinal Study), which began in 2009, is conducted by the Institute for Social and Economic Research (ISER) at the University of Essex, and the survey research organisations Verian Group (formerly Kantar Public) and NatCen. It builds on and incorporates, the British Household Panel Survey (BHPS), which began in 1991.

This dataset contains Lower Layer Super Output Areas (LSOA) Census 2021-defined geographic variables for each wave of Understanding Society to date, and a household identification serial number for file matching to the main data. LSOA’s are provided for England and Wales households and Super Data Zones (SDZ) are provided for Northern Ireland. Data Zones (DZ), when available, will be provided for Scotland.

These data have more restrictive access conditions than those available under the standard End User Licence (see 'Access data' tab for more information).

These data are consistent with the ONS Postcode Directory (ONSPD). Please see the Geographical Lookup Tables document for further details.

Census 2001, 2011 and 2021 LSOA access restrictions

Census 2001 and 2011 - defined LSOA geographic variables are also available under Special Licence access conditions to match to Understanding Society data - see SN 6670 and SN 7248 respectively. When placing an order for these data, users should note that, to minimise the risk of disclosure, users may access only one of SN 6670, SN 7248 or SN 9169 (this study).

Latest Edition Information

For the 2nd edition (November 2024), Wave 14 data have been added, and the documentation has been updated. In addition, Wave 13 data has been re-deposited with superfluous entries removed. It should be noted that LSOA’s have been provided for England and Wales, and Super Data Zones have been provided for Northern Ireland, however, data is not yet available for Scotland and those entries are set to missing (-9).

A best-fit lookup between postcodes, frozen 2011 Census Output Areas (OA), Workplace Zones (WZ), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and current local authority districts (LAD) along with OA, WZ, and LAD classifications as at February 2020 in the UK. Postcodes are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 46MB).

Field Lengths - 7, 8, 8, 6, 6, 1, 6, 7, 9, 3, 48, 9, 2, 60, 9, 63, 9, 35, 9, 36, 35, 3, 48

A best-fit lookup between postcodes, 2021 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and local authority districts (LAD). Postcodes are as at November 2024 in the UK and are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 24 MB). Field Names - PCD7, PCD8, PCDS, DOINTR, DOTERM, USERTYPE, OA21CD, LSOA21CD, MSOA21CD, LADCD, LSOA21NM, MSOA21NM, LADNM, LADNMW Field Types - All Text Field Lengths - 7, 8, 8, 8, 8, 1, 9, 9, 9, 9, 55, 65, 45, 45

Data OriginSamples were taken from customer taps. They were then analysed, and the results were uploaded to a sampling system. This dataset is an extract from this database.Data TriageWe discussed:Whether to use individual samples or averagesWhat date range would be appropriate for MVPHow best to anonymise the data geographicallyPreferred: Geospatial to LSOADo geospatial join to find the LSOA that each customer sample location (within whatever coordinate system you have them as) is found withinAcceptable for MVP: Postcode to LSOAJoin ONS dataset on postcode, keep LSOA code fieldWhy is Geospatial to LSOA preferred? Because it is more accurate since the postcode mapping is best fitted by plotting the location of the postcode's mean address rather than sample point’s specific location.

Abstract copyright UK Data Service and data collection copyright owner.

Understanding Society (the UK Household Longitudinal Study), which began in 2009, is conducted by the Institute for Social and Economic Research (ISER) at the University of Essex, and the survey research organisations Verian Group (formerly Kantar Public) and NatCen. It builds on and incorporates, the British Household Panel Survey (BHPS), which began in 1991.

This dataset contains Census 2001-defined geographic variables for each wave of Understanding Society and harmonised BHPS to date, and a household identification serial number for file matching to the main data. LSOA’s are provided for England and Wales households, Super Output Areas (SOA) are provided for Northern Ireland and Data Zones (DZ) are provided for Scotland.

These data have more restrictive access conditions than those available under the standard End User Licence (see 'Access data' tab for more information).

These data are consistent with the ONS Postcode Directory (ONSPD). Please see the Geographical Lookup Tables document for further details.

Census 2001, 2011 and 2021 LSOA access restrictions

Census 2011 and 2021 - defined LSOA geographic variables are also available under Special Licence access conditions to match to Understanding Society data - see SN 7248 and SN 9169 respectively. When placing an order for these data, users should note that, to minimise the risk of disclosure, users may access only one of SN 7248, SN 9169 or SN 6670 (this study).

Latest Edition Information

For the 16th edition (November 2024), Wave 14 data have been added, and the documentation has been updated. In addition, Wave 13 data has been re-deposited with superfluous entries removed.

A best-fit lookup between postcodes, frozen 2011 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and current local authority districts (LAD) as at August 2021 in the UK. Postcodes are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 24 MB).

Най-добра справка между пощенските кодове, замразените зони за изход от преброяването през 2011 г. (OA), зоните за свръхизход на долните слоеве (LSOA), средните слоеве супер изходни зони (MSOA) и настоящите райони на местните власти (LAD), както при ноември 2019 г. в Обединеното кралство. Пощенските кодове са най-добре пригодени чрез начертаване на местоположението на средния адрес на пощенския код в областите на изходните географски райони. (Размер на файла 23 MB).

A best-fit lookup between postcodes, 2021 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and local authority districts (LAD). Postcodes are as at February 2025 in the UK and are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 24 MB). Field Names - PCD7, PCD8, PCDS, DOINTR, DOTERM, USERTYPE, OA21CD, LSOA21CD, MSOA21CD, LADCD, LSOA21NM, MSOA21NM, LADNM, LADNMW Field Types - All Text Field Lengths - 7, 8, 8, 8, 8, 1, 9, 9, 9, 9, 55, 65, 45, 45

A best-fit lookup between postcodes, frozen 2011 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and current local authority districts (LAD) as at noiembrie 2022 în Regatul Unit. Codurile poștale sunt cel mai bine adaptate prin trasarea locației adresei medii a codului poștal în zonele geografice de ieșire. (Dimensiunea fișierului 22 MB).

div style='font-size:17px; font-familie:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", Helvetica, Arial, sans-serif !important;'>Field Lengths - 7, 8, 8, 8, 1, 9, 9, 9, 9, 55, 65, 45, 45

A best-fit lookup between postcodes, frozen 2011 Census Output Areas (OA), Lower Layer Super Output Areas (LSOA), Middle Layer Super Output Areas (MSOA) and current local authority districts (LAD) as at August 2020 in the UK. Postcodes are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 23 MB).Field Names - PCD7, PCD8, PCDS, DOINTR, DOTERM, USERTYPE, OA11CD, LSOA11CD, MSOA11CD, LADCD, LSOA11NM, MSOA11NM, LADNM, LADNMWField Types - All TextField Lengths - 7, 8, 8, 8, 8, 1, 9, 9, 9, 9, 55, 65, 45, 45

A best-fit lookup between postcodes, 2021 OAs, 2021 LSOAs, 2021 MSOAs, 2022 LTLAs, 2022 UTLAs and 2022 CAUTHs. Postcodes are as at November 2023 in the UK and are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 22 MB).Field Names - PCD7, PCD8, PCDS, DOINTR, DOTERM, USERTYPE, OA21CD, LSOA21CD, LSOA21NM, MSOA21CD, MSOA21NM LTLA22CD, LTLA22NM, LTLA22NMW, UTLA22CD, UTLA22NM, UTLA22NMW, CAUTH22CD, CAUTH22NMField Types - All TextField Lengths - 7, 8, 8, 8, 8, 1, 9, 9, 55, 9, 65, 9, 45, 45, 9, 45, 45, 9, 30

A best-fit lookup between postcodes, 2021 Census Output Areas (OA), LSOAs, MSOAs, LTLAs, UTLAs, regions (RGN), countries (CTRY) and nationalities (NAT) as at May 2021 in England and Wales. Postcodes are best-fitted by plotting the location of the postcode's mean address into the areas of the output geographies. (File size 23 MB).Field Names - PCD, GRIDGB1E, GRIDGB1N, OA21CD, LSOA21CD, LSOA21NM, MSOA21CD, MSOA21NM, LTLA22CD, LTLA22NM, LTLA22NMW, UTLA22CD, UTLA22NM, UTLA22NMW, RGN22CD, RGN22NM, RGN22NMW, CTRY22CD, CTRY22NM, CTRY22NMW, NAT22CD, NAT22NM, NAT22NMWField Types - All TextField Lengths - 7, 6, 7, 9, 9, 60, 9, 60, 9, 60, 60, 9, 60, 60, 9, 30, 30, 9, 10, 10, 9, 20, 20

This is the ONS Postcode Directory (ONSPD) for the United Kingdom as at August 2023 in Comma Separated Variable (CSV) and ASCII text (TXT) formats. This file contains the multi CSVs so that postcode areas can be opened in MS Excel. To download the zip file click the Download button. The ONSPD relates both current and terminated postcodes in the United Kingdom to a range of current statutory administrative, electoral, health and other area geographies. It also links postcodes to pre-2002 health areas, 1991 Census enumeration districts for England and Wales, 2001 Census Output Areas (OA) and Super Output Areas (SOA) for England and Wales, 2001 Census OAs and SOAs for Northern Ireland and 2001 Census OAs and Data Zones (DZ) for Scotland. It now contains 2021 Census OAs and SOAs for England, Wales and Northern Ireland. It helps support the production of area based statistics from postcoded data. The ONSPD is produced by ONS Geography, who provide geographic support to the Office for National Statistics (ONS) and geographic services used by other organisations. The ONSPD is issued quarterly. (File size - 236 MB)Please note that this product contains Royal Mail, Gridlink, LPS (Northern Ireland), Ordnance Survey and ONS Intellectual Property Rights.

A best fit lookup of output areas, local authority districts, lower layer super output areas, middle layer super output areas to local enterprise partnerships (non overlapping parts) in England as at December 2014. (File Size 11.4MB).Field Names – OA11CD, LAD15CD, LAD15NM, LSOA11CD, LSOA11NM, MSOA11CD, MSOA11NM, LEPNOP14CD, LEPNOP14NM

Field Types – Text, Text, Text, Text, Text, Text, Text, Text, Text

Field Lengths – 9, 9, 36, 9, 33, 9, 32, 9, 49REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/OA11_LAD15_LSOA11_MSOA11_LEPNOP14_EN_LU_c25d8a44edb74a488d0a95fbc3987a7e/FeatureServer

For more information and an overview of best-fitting follow this link - https://geoportal.statistics.gov.uk/datasets/f0aac7ccbfd04cda9eb03e353c613faa/about