ONS coding system
The
Office for National Statistics coding system is a hierarchical code used in the
United Kingdom for tabulating
census and other statistical data.
Authorities, wards, and census areas
\nThe code is constructed top down from a 4 character code representing a unitary authority or administrative county & district, eg:
{| border=1 cellpadding=2\n|-\n|00EC||Middlesbrough (unitary)\n|-\n!colspan=2|or\n|-\n|12||Cambridgeshire county\n|-\n|12UB||Cambridge district\n|-\n|}
Local Government wards have a two-letter code within their local authority, and census Output Areas an additional 4 digits within a ward. Output Areas are the smallest unit for which census data is published - they contain at least 40 households (preferably 100), and are built up from postcode blocks AFTER the census data is available with a view to being socially as homogeneous as possible. A new set of Output Areas will be created for each decennial census. Census 2001 was the first to use this system - previously census data was published for larger Enumeration Districts which were delineated before the census was conducted. Enumeration Districts are still used for the collection of data but not for publication.
{| border=1 cellpadding=2\n|-\n|12UB||Cambridge district\n|-\n|12UBGA||Petersfield Ward\n|-\n|12UBGA0001||Output Area: Gwydir Street (north of junction with Hooper St)\n|-\n|}
The authority and ward codes are recognised by Eurostat as Local administrative unit code levels 1 & 2 within the NUTS system.
Civil parishes
\nAn overlapping system encodes Civil Parish areas. Parishes are represented by an additional 3 digits within their local authority:
{| border=1 cellpadding=2\n|-\n|12UD||Fenland district\n|-\n|12UD010||Tydd St. Giles parish\n|-\n|}
ONS codes for counties & districts
\nAlso showing NUTS(3) codes thus: (UKH12)
Single-tier districts
\n*Special area\n**00AA (UKI11) City of London\n*London boroughs\n**00AB (UKI21) Barking and Dagenham\n**00AC (UKI23) Barnet\n**00AD (UKI21) Bexley\n**00AE (UKI23) Brent\n**00AF (UKI22) Bromley\n**00AG (UKI11) Camden\n**00AH (UKI22) Croydon\n**00AJ (UKI23) Ealing\n**00AK (UKI21) Enfield\n**00AL (UKI21) Greenwich\n**00AM (UKI12) Hackney\n**00AN (UKI11) Hammersmith and Fulham\n**00AP (UKI12) Haringey\n**00AQ (UKI23) Harrow\n**00AR (UKI21) Havering\n**00AS (UKI23) Hillingdon\n**00AT (UKI23) Hounslow\n**00AU (UKI12) Islington\n**00AW (UKI11) Kensington and Chelsea\n**00AX (UKI22) Kingston upon Thames\n**00AY (UKI12) Lambeth\n**00AZ (UKI12) Lewisham\n**00BA (UKI22) Merton\n**00BB (UKI12) Newham\n**00BC (UKI21) Redbridge\n**00BD (UKI23) Richmond upon Thames\n**00BE (UKI12) Southwark\n**00BF (UKI22) Sutton\n**00BG (UKI12) Tower Hamlets\n**00BH (UKI21) Waltham Forest\n**00BJ (UKI11) Wandsworth\n**00BK (UKI11) Westminster\n*Greater Manchester districts\n**00BL (UKD32) Bolton\n**00BM (UKD32) Bury\n**00BN (UKD31) Manchester\n**00BP (UKD32) Oldham\n**00BQ (UKD32) Rochdale\n**00BR (UKD31) Salford\n**00BS (UKD31) Stockport\n**00BT (UKD31) Tameside\n**00BU (UKD31) Trafford\n**00BW (UKD32) Wigan\n*Merseyside districts\n**00BX (UKD51) Knowsley\n**00BY (UKD52) Liverpool\n**00BZ (UKD51) St Helens\n**00CA (UKD53) Sefton\n**00CB (UKD54) Wirral\n*South Yorkshire districts\n**00CC (UKE31) Barnsley\n**00CE (UKE31) Doncaster\n**00CF (UKE31) Rotherham\n**00CG (UKE32) Sheffield\n*Tyne and Wear districts\n**00CH (UKC22) Gateshead\n**00CJ (UKC22) Newcastle-upon-Tyne\n**00CK (UKC22) North Tyneside\n**00CL (UKC22) South Tyneside\n**00CM (UKC23) Sunderland\n*West Midlands districts\n**00CN (UKG31) Birmingham\n**00CQ (UKG33) Coventry\n**00CR (UKG34) Dudley\n**00CS (UKG34) Sandwell\n**00CT (UKG32) Solihull\n**00CU (UKG35) Walsall\n**00CW (UKG35) Wolverhampton\n*West Yorkshire districts\n**00CX (UKE41) Bradford\n**00CY (UKE43) Calderdale\n**00CZ (UKE43) Kirklees\n**00DA (UKE42) Leeds\n**00DB (UKE43) Wakefield\n*Unitary authorities - North East England region\n**00EB (UKC11) Hartlepool\n**00EC (UKC12) Middlesbrough\n**00EE (UKC12) Redcar and Cleveland\n**00EF (UKC11) Stockton-on-Tees\n**00EH (UKC13) Darlington\n*Unitary authorities - North West England region\n**00ET (UKD21) Halton\n**00EU (UKD21) Warrington\n**00EX (UKD41) Blackburn with Darwen\n**00EY (UKD42) Blackpool\n*Unitary authorities - Yorkshire and the Humber region\n**00FA (UKE11) Kingston upon Hull\n**00FB (UKE12) East Riding of Yorkshire\n**00FC (UKE13) North East Lincolnshire\n**00FD (UKE13) North Lincolnshire\n**00FF (UKE21) York\n*Unitary authorities - East Midlands region\n**00FK (UKF11) Derby\n**00FN (UKF21) Leicester\n**00FP (UKF22) Rutland\n**00FY (UKF14) Nottingham\n*Unitary authorities - West Midlands region\n**00GA (UKG12) Herefordshire\n**00GF (UKG21) Telford and Wrekin\n**00GL (UKG23) Stoke-on-Trent\n*Unitary authorities - South West England region\n**00HA (UKK12) Bath and North East Somerset\n**00HB (UKK11) Bristol\n**00HC (UKK12) North Somerset\n**00HD (UKK12) South Gloucestershire\n**00HG (UKK41) Plymouth\n**00HH (UKK42) Torbay\n**00HN (UKK21) Bournemouth\n**00HP (UKK21) Poole\n**00HX (UKK14) Swindon\n*Unitary authorities - East of England region\n**00JA (UKH11) Peterborough\n**00KA (UKH21) Luton\n**00KF (UKH31) Southend-on-Sea\n**00KG (UKH32) Thurrock\n*Unitary authorities - South East England region\n**00LC (UKJ41) Medway\n**00MA (UKJ11) Bracknell Forest\n**00MB (UKJ11) West Berkshire\n**00MC (UKJ11) Reading\n**00MD (UKJ11) Slough\n**00ME (UKJ11) Windsor and Maidenhead\n**00MF (UKJ11) Wokingham\n**00MG (UKJ12) Milton Keynes\n**00ML (UKJ21) Brighton and Hove\n**00MR (UKJ31) Portsmouth\n**00MS (UKJ32) Southampton\n**00MW (UKJ34) Isle of Wight\n*Welsh authorities\n**00NA (UKL11) Isle of Anglesey\n**00NC (UKL12) Gwynedd\n**00NE (UKL13) Conwy\n**00NG (UKL13) Denbighshire\n**00NJ (UKL23) Flintshire\n**00NL (UKL23) Wrexham\n**00NN (UKL24) Powys\n**00NQ (UKL14) Ceredigion\n**00NS (UKL14) Pembrokeshire\n**00NU (UKL14) Carmarthenshire\n**00NX (UKL18) Swansea\n**00NZ (UKL17) Neath Port Talbot\n**00PB (UKL17) Bridgend\n**00PD (UKL22) Vale of Glamorgan\n**00PF (UKL15) Rhondda Cynon Taff\n**00PH (UKL15) Merthyr Tydfil\n**00PK (UKL16) Caerphilly\n**00PL (UKL16) Blaenau Gwent\n**00PM (UKL16) Torfaen\n**00PP (UKL21) Monmouthshire\n**00PR (UKL21) Newport\n**00PT (UKL22) Cardiff\n*Scottish districts\n**00QA (UKM10) Aberdeen\n**00QB (UKM10) Aberdeenshire\n**00QC (UKM21) Angus\n**00QD (UKM31/43) Argyll and Bute\n**00QE (UKM24) Scottish Borders\n**00QF (UKM22) Clackmannanshire\n**00QG (UKM31) West Dunbartonshire\n**00QH (UKM32) Dumfries and Galloway\n**00QJ (UKM21) Dundee\n**00QK (UKM33) East Ayrshire\n**00QL (UKM31) East Dunbartonshire\n**00QM (UKM23) East Lothian\n**00QN (UKM35) East Renfrewshire\n**00QP (UKM25) Edinburgh\n**00QQ (UKM26) Falkirk\n**00QR (UKM22) Fife\n**00QS (UKM34) Glasgow\n**00QT (UKM41/42/43) Highland\n**00QU (UKM35) Inverclyde\n**00QW (UKM23) Midlothian\n**00QX (UKM10/42) Moray\n**00QY (UKM33/43) North Ayrshire\n**00QZ (UKM36) North Lanarkshire\n**00RA (UKM45) Orkney Islands\n**00RB (UKM27) Perth and Kinross\n**00RC (UKM35) Renfrewshire\n**00RD (UKM46) Shetland Islands\n**00RE (UKM37) South Ayrshire\n**00RF (UKM38) South Lanarkshire\n**00RG (UKM27) Stirling\n**00RH (UKM28) West Lothian\n**00RJ (UKM44) Eilean Siar (Western Isles)
Two-tier counties & districts
\n*01-07 obsolete, were London & the Metropolitan Counties\n*08 obsolete, was Avon\n*09 (UKH22) Bedfordshire\n**09UC Mid Bedfordshire\n**09UD Bedford\n**09UE South Bedfordshire\n*10 obsolete, was Berkshire\n*11 (UKJ13) Buckinghamshire\n**11UB Aylesbury Vale\n**11UC Chiltern\n**11UE South Bucks\n**11UF Wycombe\n*12 (UKH12) Cambridgeshire\n**12UB Cambridge\n**12UC East Cambridgeshire\n**12UD Fenland\n**12UE Huntingdonshire\n**12UG South Cambridgeshire\n*13 (UKD22) Cheshire\n**13UB Chester\n**13UC Congleton\n**13UD Crewe and Nantwich\n**13UE Ellesmere Port and Neston\n**13UG Macclesfield\n**13UH Vale Royal\n*14 obsolete, was Cleveland\n*15 (UKK30) Cornwall and Scilly\n**15UB Caradon\n**15UC Carrick\n**15UD Kerrier\n**15UE North Cornwall\n**15UF Penwith\n**15UG Restormel\n**15UH Isles of Scilly\n*16 Cumbria\n**16UB (UKD11) Allerdale\n**16UC (UKD11) Barrow-in-Furness\n**16UD (UKD12) Carlisle\n**16UE (UKD11) Copeland\n**16UF (UKD12) Eden\n**16UG (UKD12) South Lakeland\n*17 Derbyshire\n**17UB (UKF13) Amber Valley\n**17UC (UKF12) Bolsover\n**17UD (UKF12) Chesterfield\n**17UF (UKF13) Derbyshire Dales\n**17UG (UKF13) Erewash\n**17UH (UKF13) High Peak\n**17UJ (UKF12) North East Derbyshire\n**17UK (UKF13) South Derbyshire\n*18 (UKK43) Devon\n**18UB East Devon\n**18UC Exeter\n**18UD Mid Devon\n**18UE North Devon\n**18UG South Hams\n**18UH Teignbridge\n**18UK Torridge\n**18UL West Devon\n*19 (UKK22) Dorset\n**19UC Christchurch\n**19UD East Dorset\n**19UE North Dorset\n**19UG Purbeck\n**19UH West Dorset\n**19UJ Weymouth and Portland\n*20 (UKC14) County Durham\n**20UB Chester-le-Street\n**20UD Derwentside\n**20UE Durham\n**20UF Easington\n**20UG Sedgefield\n**20UH Teesdale\n**20UJ Wear Valley\n*21 (UKJ22) East Sussex\n**21UC Eastbourne\n**21UD Hastings\n**21UF Lewes\n**21UG Rother\n**21UH Wealden\n*22 (UKH33) Essex\n**22UB Basildon\n**22UC Braintree\n**22UD Brentwood\n**22UE Castle Point\n**22UF Chelmsford\n**22UG Colchester\n**22UH Epping Forest\n**22UJ Harlow\n**22UK Maldon\n**22UL Rochford\n**22UN Tendring\n**22UQ Uttlesford\n*23 (UKK13) Gloucestershire\n**23UB Cheltenham\n**23UC Cotswold\n**23UD Forest of Dean\n**23UE Gloucester\n**23UF Stroud\n**23UG Tewkesbury\n*24 (UKJ33) Hampshire\n**24UB Basingstoke and Deane\n**24UC East Hampshire\n**24UD Eastleigh\n**24UE Fareham\n**24UF Gosport\n**24UG Hart\n**24UH Havant\n**24UJ New Forest\n**24UL Rushmoor\n**24UN Test Valley\n**24UP Winchester\n*25 obsolete, was Hereford and Worcester\n*26 (UKH23) Hertfordshire\n**26UB Broxbourne\n**26UC Dacorum\n**26UD East Hertfordshire\n**26UE Hertsmere\n**26UF North Hertfordshire\n**26UG St Albans\n**26UH Stevenage\n**26UJ Three Rivers\n**26UK Watford\n**26UL Welwyn Hatfield\n*27 obsolete, was Humberside\n*28 obsolete, was Isle of Wight county\n*29 (UKJ42) Kent\n**29UB Ashford\n**29UC Canterbury\n**29UD Dartford\n**29UE Dover\n**29UG Gravesham\n**29UH Maidstone\n**29UK Sevenoaks\n**29UL Shepway\n**29UM Swale\n**29UN Thanet\n**29UP Tonbridge and Malling\n**29UQ Tunbridge Wells\n*30 (UKD43) Lancashire\n**30UD Burnley\n**30UE Chorley\n**30UF Fylde\n**30UG Hyndburn\n**30UH Lancaster\n**30UJ Pendle\n**30UK Preston\n**30UL Ribble Valley\n**30UM Rossendale\n**30UN South Ribble\n**30UP West Lancashire\n**30UQ Wyre\n*31 (UKF22) Leicestershire\n**31UB Blaby\n**31UC Charnwood\n**31UD Harborough\n**31UE Hinckley and Bosworth\n**31UG Melton\n**31UH North West Leicestershire\n**31UJ Oadby and Wigston\n*32 (UKF30) Lincolnshire\n**32UB Boston\n**32UC East Lindsey\n**32UD Lincoln\n**32UE North Kesteven\n**32UF South Holland\n**32UG South Kesteven\n**32UH West Lindsey\n*33 (UKH13) Norfolk\n**33UB Breckland\n**33UC Broadland\n**33UD Great Yarmouth\n**33UE King's Lynn and West Norfolk\n**33UF North Norfolk\n**33UG Norwich\n**33UH South Norfolk\n*34 (UKF23) Northamptonshire\n**34UB Corby\n**34UC Daventry\n**34UD East Northamptonshire\n**34UE Kettering\n**34UF Northampton\n**34UG South Northamptonshire\n**34UH Wellingborough\n*35 (UKC21) Northumberland\n**35UB Alnwick\n**35UC Berwick-upon-Tweed\n**35UD Blyth Valley\n**35UE Castle Morpeth\n**35UF Tynedale\n**35UG Wansbeck\n*36 (UKE22) North Yorkshire\n**36UB Craven\n**36UC Hambleton\n**36UD Harrogate\n**36UE Richmondshire\n**36UF Ryedale\n**36UG Scarborough\n**36UH Selby\n*37 Nottinghamshire\n**37UB (UKF15) Ashfield\n**37UC (UKF15) Bassetlaw\n**37UD (UKF16) Broxtowe\n**37UE (UKF16) Gedling\n**37UF (UKF15) Mansfield\n**37UG (UKF15) Newark and Sherwood\n**37UJ (UKF16) Rushcliffe\n*38 (UKJ14) Oxfordshire\n**38UB Cherwell\n**38UC Oxford\n**38UD South Oxfordshire\n**38UE Vale of White Horse\n**38UF West Oxfordshire\n*39 (UKG22) Shropshire\n**39UB Bridgnorth\n**39UC North Shropshire\n**39UD Oswestry\n**39UE Shrewsbury and Atcham\n**39UF South Shropshire\n*40 (UKK23) Somerset\n**40UB Mendip\n**40UC Sedgemoor\n**40UD South Somerset\n**40UE Taunton Deane\n**40UF West Somerset\n*41 (UKG24) Staffordshire\n**41UB Cannock Chase\n**41UC East Staffordshire\n**41UD Lichfield\n**41UE Newcastle-under-Lyme\n**41UF South Staffordshire\n**41UG Stafford\n**41UH Staffordshire Moorlands\n**41UK Tamworth\n*42 (UKH14) Suffolk\n**42UB Babergh\n**42UC Forest Heath\n**42UD Ipswich\n**42UE Mid Suffolk\n**42UF St. Edmundsbury\n**42UG Suffolk Coastal\n**42UH Waveney\n*43 (UKJ23) Surrey\n**43UB Elmbridge\n**43UC Epsom and Ewell\n**43UD Guildford\n**43UE Mole Valley\n**43UF Reigate and Banstead\n**43UG Runnymede\n**43UH Spelthorne\n**43UJ Surrey Heath\n**43UK Tandridge\n**43UL Waverley\n**43UM Woking\n*44 (UKG13) Warwickshire\n**44UB North Warwickshire\n**44UC Nuneaton and Bedworth\n**44UD Rugby\n**44UE Stratford-on-Avon\n**44UF Warwick\n*45 (UKJ24) West Sussex\n**45UB Adur\n**45UC Arun\n**45UD Chichester\n**45UE Crawley\n**45UF Horsham\n**45UG Mid Sussex\n**45UH Worthing\n*46 (UKK15) Wiltshire\n**46UB Kennet\n**46UC North Wiltshire\n**46UD Salisbury\n**46UF West Wiltshire\n*47 (UKG12) Worcestershire\n**47UB Bromsgrove\n**47UC Malvern Hills\n**47UD Redditch\n**47UE Worcester\n**47UF Wychavon\n**47UG Wyre Forest
Northern Ireland districts
\n*95A (UKN04) Derry\n*95B (UKN04) Limavady\n*95C (UKN04) Coleraine\n*95D (UKN04) Ballymoney\n*95E (UKN04) Moyle\n*95F (UKN03) Larne\n*95G (UKN03) Ballymena\n*95H (UKN05) Magherafelt\n*95I (UKN05) Cookstown\n*95J (UKN04) Strabane\n*95K (UKN05) Omagh\n*95L (UKN05) Fermanagh\n*95M (UKN05) Dungannon and South Tyrone\n*95N (UKN03) Craigavon\n*95O (UKN05) Armagh\n*95P (UKN05) Newry and Mourne\n*95Q (UKN03) Banbridge\n*95R (UKN03) Down\n*95S (UKN02) Lisburn\n*95T (UKN03) Antrim\n*95U (UKN02) Newtownabbey\n*95V (UKN02) Carrickfergus\n*95W (UKN02) North Down\n*95X (UKN03) Ards\n*95Y (UKN02) Castlereagh\n*95Z (UKN01) Belfast
Non-hierarchical codes for summary data in metropolitan areas
\n*1B Inner London\n*1C Outer London\n*2A Greater Manchester\n*2B Merseyside\n*2C South Yorkshire\n*2D Tyne and Wear\n*2E West Midlands\n*2F West Yorkshire
External link
\nONS Beginners' Guide to UK Geography
Category:Geocodes
