List of Sites of Special Scientific Interest by Area of Search

Sites of Special Scientific Interest (SSSIs) in the United Kingdom are areas of conservation, consisting of protected areas, recognised for their biological or geological significance. In Northern Ireland an SSSI is called an area of special scientific interest (ASSI).

An Area of Search (AOS) is a geographical area used in the selection of these sites.NCC 1989, page 17, note 4.11 In England these are largely based on the 1974–1996 administrative counties (with larger counties divided into two or more areas). In Scotland they are largely based around the 1975 - 1996 districts, whereas in Wales they are based on districts (the second-tier administrative divisions which functioned between 1974 and 1996) or counties. The individual AOSs are between 400 km2 and 4,000 km2 in size. There are 59 AOSs in England, 12 in Wales, and 44 in Scotland.NCC 1989, page 18, where all AOS boundaries are mapped Map

Until the 2010s, Natural England, which maintains the database of English SSSIs, kept the listing of counties as it was in 1974, but by 2015 they had updated their lists to reflect some later changes. However, two counties abolished in 1996 are still used as areas of search by Natural England: Avon (which is now divided between Somerset, Gloucestershire and Bristol) and Cleveland (which is now divided into County Durham and North Yorkshire).

England Area of Search Number of sites Sites list Biological Geological Both Total Avon3839986List of SSSIs in Avon Bedfordshire355040List of SSSIs in Bedfordshire Berkshire638071List of SSSIs in Berkshire Buckinghamshire5510065List of SSSIs in Buckinghamshire Cambridgeshire90101101List of SSSIs in Cambridgeshire Cheshire517563List of SSSIs in Cheshire Cleveland124218List of SSSIs in Cleveland Cornwall815432167List of SSSIs in Cornwall County Durham6716588List of SSSIs in County Durham Cumbria1707038278List of SSSIs in Cumbria Derbyshire54281799List of SSSIs in Derbyshire Devon1097131211List of SSSIs in Devon Dorset1032016139List of SSSIs in Dorset East Riding of Yorkshire3914350List of SSSIs in East Riding of Yorkshire East Sussex4614464List of SSSIs in East Sussex Essex6419386List of SSSIs in Essex Gloucestershire693220121List of SSSIs in Gloucestershire Greater London307037List of SSSIs in Greater London Greater Manchester145221List of SSSIs in Greater Manchester Hampshire10846118List of SSSIs in Hampshire Herefordshire6221483List of SSSIs in Herefordshire Hertfordshire367043List of SSSIs in Hertfordshire Isle of Wight2641141List of SSSIs on the Isle of Wight Kent67211098List of SSSIs in Kent Lancashire4914669List of SSSIs in Lancashire Leicestershire5812676List of SSSIs in Leicestershire Lincolnshire98233121List of SSSIs in Lincolnshire Merseyside101314List of SSSIs in Merseyside Norfolk1232515163List of SSSIs in Norfolk North Yorkshire1625623241List of SSSIs in North Yorkshire Northamptonshire489057List of SSSIs in Northamptonshire NorthumberlandTBCTBCTBC114List of SSSIs in Northumberland Nottinghamshire631266List of SSSIs in Nottinghamshire Oxfordshire76277110List of SSSIs in Oxfordshire Rutland161219List of SSSIs in Rutland ShropshireTBCTBCTBC110List of SSSIs in Shropshire Somerset83359127List of SSSIs in Somerset South Yorkshire1814335List of SSSIs in South Yorkshire StaffordshireTBCTBCTBC65List of SSSIs in Staffordshire Suffolk109285142List of SSSIs in Suffolk Surrey528262List of SSSIs in Surrey Tyne and Wear256637List of SSSIs in Tyne and Wear WarwickshireTBCTBCTBC62List of SSSIs in Warwickshire West Midlands119323List of SSSIs in the West Midlands West Sussex5419578List of SSSIs in West Sussex West Yorkshire219232List of SSSIs in West Yorkshire Wiltshire108215134List of SSSIs in Wiltshire Worcestershire106155121List of SSSIs in Worcestershire

A number of sites are split between more than one county and will be included in this table more than once.

Northern Ireland County Areas Sites list Biological Geological Both Total County AntrimTBCTBCTBCTBCList of ASSIs in Antrim County ArmaghTBCTBCTBCTBCList of ASSIs in Armagh County DownTBCTBCTBCTBCList of ASSIs in Down County FermanaghTBCTBCTBCTBCList of ASSIs in Fermanagh County LondonderryTBCTBCTBCTBCList of ASSIs in Londonderry County TyroneTBCTBCTBCTBCList of ASSIs in Tyrone

Scotland Area of Search Number of sites Sites list Biological Geological Both Total Angus and DundeeTBCTBCTBC45List of SSSIs in Angus and Dundee Annandale and EskdaleTBCTBCTBC15List of SSSIs in Annandale and Eskdale Badenoch and StrathspeyTBCTBCTBC23List of SSSIs in Badenoch and Strathspey Banff and BuchanTBCTBCTBC20List of SSSIs in Banff and Buchan Berwickshire and RoxburghTBCTBCTBC54List of SSSIs in Berwickshire and Roxburgh CaithnessTBCTBCTBC65List of SSSIs in Caithness Clydesdale and South East GlasgowTBCTBCTBC53List of SSSIs in Clydesdale and South East Glasgow Cumnock and KyleTBCTBCTBC50List of SSSIs in Cumnock and Kyle Dumbarton and North GlasgowTBCTBCTBC46List of SSSIs in Dumbarton and North Glasgow Dunfermline and KirkcaldyTBCTBCTBC25List of SSSIs in Dunfermline and Kirkcaldy East PerthTBCTBCTBC47List of SSSIs in East Perth East Ross and CromartyTBCTBCTBC35List of SSSIs in East Ross and Cromarty Edinburgh and West LothianTBCTBCTBC23List of SSSIs in Edinburgh and West Lothian Falkirk and ClackmannanTBCTBCTBC20List of SSSIs in Falkirk and Clackmannan Gordon and AberdeenTBCTBCTBC35List of SSSIs in Gordon and Aberdeen InvernessTBCTBCTBC32List of SSSIs in Inverness Islay and JuraTBCTBCTBC20List of SSSIs in Islay and Jura Kincardine and DeesideTBCTBCTBC42List of SSSIs in Kincardine and Deeside KintyreTBCTBCTBC12List of SSSIs in Kintyre LorneTBCTBCTBC24List of SSSIs in Lorne Mid and East LothianTBCTBCTBCTBCList of SSSIs in Mid and East Lothian Mid Argyll and CowalTBCTBCTBCTBCList of SSSIs in Mid Argyll and Cowal Moray and NairnTBCTBCTBCTBCList of SSSIs in Moray and Nairn Mull, Coll and TireeTBCTBCTBCTBCList of SSSIs in Mull, Coll and Tiree NithsdaleTBCTBCTBCTBCList of SSSIs in Nithsdale North East FifeTBCTBCTBCTBCList of SSSIs in North East Fife North LochaberTBCTBCTBCTBCList of SSSIs in North Lochaber North West SutherlandTBCTBCTBCTBCList of SSSIs in North West Sutherland North Wester Ross and CromartyTBCTBCTBCTBCList of SSSIs in North Wester Ross and Cromarty OrkneyTBCTBCTBCTBCList of SSSIs in Orkney Renfrew and CunninghameTBCTBCTBCTBCList of SSSIs in Renfrew and Cunninghame Rùm and the Small IslesTBCTBCTBCTBCList of SSSIs in Rum and the Small Isles ShetlandTBCTBCTBCTBCList of SSSIs in Shetland Skye and LochalshTBCTBCTBCTBCList of SSSIs in Skye and Lochalsh South East SutherlandTBCTBCTBCTBCList of SSSIs in South East Sutherland South LochaberTBCTBCTBCTBCList of SSSIs in South Lochaber South PerthTBCTBCTBCTBCList of SSSIs in South Perth South Wester Ross and CromartyTBCTBCTBCTBCList of SSSIs in South Wester Ross and Cromarty StirlingTBCTBCTBCTBCList of SSSIs in Stirling Tweeddale, Ettrick and LauderdaleTBCTBCTBCTBCList of SSSIs in Tweeddale and Ettrick and Lauderdale West PerthTBCTBCTBCTBCList of SSSIs in West Perth Western Isles NorthTBCTBCTBCTBCList of SSSIs in Western Isles North Western Isles SouthTBCTBCTBCTBCList of SSSIs in Western Isles South Wigtown and StewartryTBCTBCTBCTBCList of SSSIs in Wigtown and Stewartry

Wales Area of Search Number of sites Sites list Biological Geological Both Total BrecknockshireTBCTBCTBC84List of SSSIs in Brecknock Carmarthen & DinefwrTBCTBCTBC79List of SSSIs in Carmarthen & Dinefwr CeredigionTBCTBCTBC100List of SSSIs in Ceredigion ClwydTBCTBCTBC81List of SSSIs in Clwyd East GwyneddTBCTBCTBC103List of SSSIs in East Gwynedd GwentTBCTBCTBC78List of SSSIs in Gwent Mid & South GlamorganTBCTBCTBC69List of SSSIs in Mid & South Glamorgan MontgomeryshireTBCTBCTBC76List of SSSIs in Montgomery Preseli & South PembrokeshireTBCTBCTBC75List of SSSIs in Preseli & South Pembrokeshire RadnorshireTBCTBCTBC87List of SSSIs in Radnor West GlamorganTBCTBCTBC56List of SSSIs in West Glamorgan West GwyneddTBCTBCTBC135List of SSSIs in West Gwynedd

References

Search for Designated Site Details by County - Natural England website

External links Natural England: English SSSIs Natural Resources Wales: Welsh SSSIs NatureScot: Scottish SSSIs Environment & Heritage Service for Northern Ireland: Northern Irish ASSIs