England

Lock Cylinders in Bedfordshire (Bedford, Luton, Dunstable, Leighton Buzzard, Biggleswade, Sandy, Ampthill, Arlesey, Flitwick, Houghton Regis, Kempston, Linslade, Potton, Shefford, Stotfold, Wixams, Woburn Sands, )
Lock Cylinders in Berkshire (Reading, Bracknell, Maidenhead, Newbury, Windsor, Wokingham, Abingdon, Ascot, Crowthorne, Earley, Eton, Hungerford, Sandhurst, Thatcham)
Lock Cylinders in Buckinghamshire (Aylesbury, Milton Keynes, Slough, Buckingham, High Wycombe, Beaconsfield, Burnham, Chesham, Fenny Stratford, Marlow, Newport, Olney, Princes Risborough, Stony Stratford, Wendover, Winslow, Woburn Sands, Wolverton)
Lock Cylinders in Cambridgeshire (Cambridge, Wisbech, Ely, March, Whittlesey, Chatteris, Linton, Fulbourn, Godmanchester, Hanley Grange, Huntingdon, Littleport, March, Northstowe, Ramsey, St Ives, St Neots, Soham, Wisbech)
Lock Cylinders in Cheshire (Chester, Stockport, Ellesmere Port, Birkenhead, Wallasey, Runcorn, Macclesfield, Crewe, Warrington, Sandbach, Northwich, Nantwich, Middlewich, Malpas, Knutsford, Frodsham, Congleton, Bollington, Alsager,)
Lock Cylinders in Cornwall (Bodmin, Truro, Camborne, Redruth, St. Austell, Falmouth, Penzance, Newquay)
Lock Cylinders in Cumberland / Cumbria (Carlisle, Whitehaven, Workington, Penrith, Keswick, Brampton, Windermere, Wigton, Ulverston, Silloth, Sedbergh, Milnthorpe, Millom, Longtown, Kirkby Stephen, Kirkby Lonsdale, Harrington, Egremont, Cockermouth, Cleator Moor)
Lock Cylinders in Derbyshire (Derby, Chesterfield, Ilkeston, Swadlincote, Buxton, Matlock, Ashbourne, Alfreton, Bakewell, Bolsover, Darley Dale, Dronfield, Dronfield Woodhouse, Eckington, Glossop, Glossopdale, Hadfield, Heanor, Ilkeston, Killamarsh, Langley Mill, Long Eaton, Matlock, Melbourne, Netherthorpe, New Mills, Newhaven, Renishaw, Ripley, Sandiacre, Shirebrook, Staveley, Swadlincote, Tansley, Whaley Bridge, Wirksworth)
Lock Cylinders in Devon (Exeter, Plymouth, Torquay, Paignton, Barnstaple, Tiverton, Newton Abbot, Tavistock, Axminster, Bideford, Chagford, Chudleigh, Colyford, Dartmouth, Exmouth, Great Torrington, Hartland, Ilfracombe, Kingsbridge, Okehampton, Salcombe, Sidmouth, Tavistock, Topsham, )
Lock Cylinders in Dorset (Dorchester, Poole, Weymouth, Sherborne, Wimborne Minster, Shaftesbury, Beaminster, Blandford Forum, Bournemouth, Bridport, Ferndown, Gillingham, Highcliffe, Lyme Regis, Mudeford, Sherborne, Stalbridge, Swanage, Verwood, Wareham, )
Lock Cylinders in Durham (Durham, Sunderland, Stockton-on-Tees, Darlington, Hartlepool, Gateshead, Washington)
Lock Cylinders in Essex (Chelmsford, Basildon, Romford, Southend, Colchester, Harlow, Brentwood, West Ham, Abridge, Billericay, Braintree, Brightlingsea, Buckhurst Hill, Burnham-on-Crouch, Canvey Island, Chafford Hundred, Chipping Ongar, Clacton-on-Sea, Coggeshall, Corringham, Dovercourt, Epping, Flitch Green, Frinton and Walton, Frinton-on-Sea, Grays, Great Clacton, Great Dunmow, Hadleigh, Halstead, Harwich, Heybridge, Hockley, Holland-on-Sea, Jaywick, Laindon, Langdon Hills, Loughton, Maldon, Manningtree, Parkeston, Rayleigh, Rochford, Saffron Walden, South Benfleet, South Woodham Ferrers, Southminster, Stanford-le-Hope, Thaxted, Waltham Abbey, Walton-on-the-Naze, West Mersea, West Thurrock, Wickford, Witham, Wivenhoe, )
Lock Cylinders in Gloucestershire (Gloucester, Bristol, Cheltenham, Stroud, Cirencester, Tewkesbury, Berkeley, Cinderford, Coleford, Cowley, Dursley, Fairford, Innsworth, Lechlade, Longborough, Mitcheldean, Nailsworth, Newent, Northleach, Painswick, Ruardean, Stonehouse, Stow-on-the-Wold, Tetbury, Winchcombe, )
Lock Cylinders in Hampshire (Winchester, Southampton, Portsmouth, Bournemouth, Basingstoke, Newport, Aldershot, Alton, Andover, Bordon, Eastleigh, Emsworth, Fareham, Farnborough, Fleet, Fordingbridge, Gosport, Havant, Hedge End, Lymington, New Alresford, New Milton, Odiham, Petersfield, Portchester, Ringwood, Southsea, Tadley, Waterlooville, Whitchurch, Wickham, Woolston, Yateley, )
Lock Cylinders in Herefordshire (Hereford, Ross-on-Wye, Leominster, Ledbury, Bromyard, Kington)
Lock Cylinders in Hertfordshire (Hertford, Watford, St. Albans, Hemel Hempstead, Stevenage, Hatfield, Apsley, Baldock, Berkhamsted, Bishop's Stortford, Borehamwood, Broxbourne, Buntingford, Bushey, Carpenders Park, Cheshunt, Chorleywood, Eastbury, Grovehill, Harpenden, Hatfield, Hemel Hempstead, Hitchin, Hoddesdon, Hunsdon, Letchworth, Moor Park, Potters Bar, Rickmansworth, Royston, Sawbridgeworth, South Oxhey, Spellbrook, Tring, Waltham Cross, Ware, Welwyn Garden City)
Lock Cylinders in Huntingdonshire (Huntingdon, St. Ives, St. Neots, Ramsey, Yaxley)
Lock Cylinders in Kent (Maidstone, Canterbury, Bromley, Rochester, Margate, Folkestone, Dover, Greenwich, Ashford, Broadstairs, Cranbrook, Dartford, Deal, Edenbridge, Faversham, Fordwich, Gillingham, Gravesend, Herne Bay, Lydd, Margate, Paddock Wood, Queenborough, Rainham, Ramsgate, Royal Tunbridge Wells, Sandwich, Sevenoaks, Sheerness, Sittingbourne, Snodland, Southborough, Strood, Swanley, Tenterden, Tonbridge, West Malling, Whitstable)
Lock Cylinders in Lancashire (Lancaster, Liverpool, Manchester, Preston, Bolton, Warrington, Barrow-in-Furness, Accrington, Adlington, Bacup, Blackpool, Burnley, Carnforth, Chorley, Cleveleys, Clitheroe, Darwen, Fleetwood, Garstang, Great Harwood, Haslingden, Kirkham, Leyland, Longridge, Lytham St Annes, Morecambe, Ormskirk, Oswaldtwistle, Padiham, Penwortham, Ramsbottom, Rawtenstall, Skelmersdale, Thornton, Wesham, Whitworth, )
Lock Cylinders in Leicestershire (Leicester, Loughborough, Hinckley, Melton Mowbray, Coalville, Lutterworth, Braunstone Town, Market Bosworth, Oadby, Shepshed, Syston, Wigston Magna)
Lock Cylinders in Lincolnshire (Lincoln, Grimsby, Scunthorpe, Boston, Grantham, Stamford, Skegness, Louth, Alford, Bourne, Brigg, Broughton, Burgh Le Marsh, Caistor, Coningsby, Crowle, Epworth, Gainsborough, Grantham, Holbeach, Horncastle, Immingham, Long Sutton, Mablethorpe, Market Deeping, Market Rasen, North Hykeham, Spalding, Stamford, Wainfleet, Winterton)
Lock Cylinders in Middlesex (City of London, Harrow, Enfield, Staines, Ealing, Potters Bar, Westminster )
Lock Cylinders in Norfolk (Norwich, Great Yarmouth, King's Lynn, Dereham, Cromer, Hunstanton, Thetford, Aylsham, Cromer, Fakenham, Hunstanton, North Walsham, Sheringham, Watton, Wroxham, Wymondham)
Lock Cylinders in Northamptonshire (Northampton, Peterborough, Corby, Kettering, Wellingborough, Corby, Daventry, Dingley, Farthingstone, Guilsborough, Hardingstone, Harpole, Kingsthorpe, Kislingbury, Maidford, Pitsford, Rushden, Silverstone, Stanwick, Upper Boddington, Yardley Hastings)
Lock Cylinders in Northumberland (Alnwick, Newcastle-upon-Tyne, Morpeth, Hexham, Berwick-upon-Tweed, Allendale, Amble, Ashington, Bassington, Bedlington, Berwick-upon-Tweed, Blyth, Bullers Green, Corbridge, Cramlington, Haltwhistle, Morpeth, Ponteland, Rothbury, Tarset, Wooler)
Lock Cylinders in Nottinghamshire (Nottingham, Mansfield, Worksop, Newark, Retford, Southwell, Arnold, Attenborough, Beeston, Bingham, Bracebridge, Bulwell, Carlton, Cotgrave, Eastwood, Hucknall, Kilton, Kimberley, Kirkby-in-Ashfield, Market Warsop, Netherfield, Ollerton, Southwell, Stapleford, Sutton-in-Ashfield, Toton, West Bridgford)
Lock Cylinders in Oxfordshire (Oxford, Banbury, Witney, Bicester, Henley-on-Thames, Carterton, Thame, Abingdon-on-Thames, Burford, Carterton, Charlbury, Chipping Norton, Didcot, Faringdon, Wallingford, Wantage, Watlington, Woodstock)
Lock Cylinders in Rutland (Oakham, Uppingham. Cottesmore)
Lock Cylinders in Shropshire (Shrewsbury, Telford, Oswestry, Bridgnorth, Whitchurch, Market Drayton, Ludlow, Bishop's Castle, Broseley, Church Stretton, Cleobury Mortimer, Craven Arms, Dawley, Ellesmere, Madeley, Much Wenlock, Newport, Oakengates, Shifnal, Wellington, Wem, )
Lock Cylinders in Somerset (Taunton, Bath, Weston-super-Mare, Yeovil, Bridgwater, Wells, Glastonbury, Axbridge, Clevedon, Crewkerne, Frome, Highbridge, Ilminster, Keynsham, Minehead, Nailsea, North Petherton, Norton Radstock, Portishead, Radstock, Shepton Mallet, South Petherton, Watchet, Wellington, Wincanton, )
Lock Cylinders in Staffordshire (Stafford, Stoke-on-Trent, Wolverhampton, Walsall, Cannock, Lichfield, Biddulph, Burntwood, Cheadle, Colwich, Eccleshall, Fazeley, Fenton, Hanley, Kidsgrove, Leek, Longton, Newcastle-under-Lyme, Penkridge, Rugeley, Stone, Tamworth, Uttoxeter, )
Lock Cylinders in Suffolk (Ipswich, Bury St. Edmunds, Lowestoft, Felixstowe, Sudbury, Haverhill, Bungay, Aldeburgh, Beccles, Brandon, Clare, Eye, Hadleigh, Halesworth, Kesgrave, Leiston, Mildenhall, Needham Market, Newmarket, Orford, Saxmundham, Southwold, Walton, Woodbridge)
Lock Cylinders in Surrey (Guildford, Croydon, Woking, Sutton, Kingston-on-Thames, Wandsworth, Wimbledon, Brixton, Addlestone, )
Lock Cylinders in Sussex (Chichester, Brighton, Worthing, Crawley, Hastings, Eastbourne, Bognor Regis, Horsham, Ashford, Banstead, Bellfields, Brookwood, Camberley, Caterham, Dorking, Earlswood, Egham Hythe, Englefield Green, Esher, Ewell, Farleigh, Farnham, Guildford, Haslemere, Hurst Green, Hythe End, Leatherhead, Oxted, Redhill, Shepperton, Sunbury-on-Thames, Walton-on-Thames, Weybridge, Whyteleafe, Woking)
Lock Cylinders in Warwickshire (Warwick, Birmingham, Coventry, Nuneaton, Rugby, Solihull, Stratford-upon-Avon, Alcester, Atherstone, Bedworth, Coleshill, Henley-in-Arden, Kenilworth, Leamington Spa, Rugby, Shipston-on-Stour, Southam, Whitnash)
Lock Cylinders in Westmorland (Appleby, Kendal, Windermere, Ambleside, Kirkby Lonsdale)
Lock Cylinders in Wiltshire (Trowbridge, Salisbury, Swindon, Chippenham, Devizes, Marlborough, Warminster)
Lock Cylinders in Worcestershire (Worcester, Dudley, Kidderminster, Stourbridge, Halesowen, Malvern, Evesham)
Lock Cylinders in Yorkshire
    North Riding (Northallerton, Middlesbrough, Scarborough, Whitby)
    East Riding (Beverley, Hull, Bridlington, Driffield, Hornsea, Filey)
    West Riding (Wakefield, Leeds, Sheffield, Bradford, Halifax, Harrogate)
    York (within the Walls)

London

Lock Cylinders in East London (Aldersbrook, Aldgate East, All Saints, Beckton, Bethnal Green, Blackhorse Road, Blackwall, Bow, Bow Church, Bow Road, Bromley by Bow, Canary Wharf, Canning Town, Chingford, Chingford Green, Chingford Hatch, Clapton, Clapton Park, Commercial Road, Cubitt Town, Custom House, Cyprus, Dalston, Dalston Junction, Devons Road, East Ham, East India, East India Dock Road , Forest Gate, Gilwell Park, Hackney, Hackney Marshes, Hackney Wick, Haggerston, Hale End, Heron Quays, Higham Hill, Highams Park, Homerton, Island Gardens, Lea Bridge, Leyton, Leyton Marshes, Leytonstone, Limehouse, Little Ilford, London Arena, Lower Clapton, Manor Park, Mile End, Mile End, Road Millwall, Mudchute, Newham, North Woolwich, Old Ford, Plaistow, Plashet, Poplar, Pudding Mill Lane, Sewardstone, Shacklewell, Shadwell, Silvertown, Snaresbrook, South Hackney, South Quay, South Woodford, Spitalfields, Stepney, Stepney Green, Stratford, Stratford Marsh, Temple Mills, Tower Hamlets, Upper Clapton, Upper Walthamstow, Upton, Upton Park, Victoria Docks, Victoria Park, Walthamstow, Walthamstow Central, Wanstead, Wanstead Park, Wapping, West Ham, West India Quay, Westferry, Whitechapel)
Lock Cylinders in North London (Alexandra Palace, Alexandra Park, Archway, Arsenal , Balls Pond, Road Barnsbury, Bounds Green, Bowes Park, Caledonian Road, Canonbury, Colney Hatch, Cranley Gardens, Crouch End, Dartmouth Park, Drayton Park, East Barnet, East Finchley, Edmonton, Essex Road, Finchley, Finchley Central, Finsbury Park, Fortis Green, Friern Barnet, Grange Park, Haringey, Harringay, Highbury, Highbury and Islington, Highgate, Highgate Wood, Highwood Hill, Holloway, Holloway Road, Hornsey, Hornsey Lane, Hornsey Rise, Hornsey Vale, Hoxton, Islington, Kenwood House, Kingsland, Lower Edmonton, Lower Holloway, Manor House, Muswell Hill, New Southgate, Newington Green, Noel Park, North Finchley, Oakleigh Park, Oakwood, Osidge, Palmers Green, Pentonville, Seven Sisters, Seven Sisters Road, South Tottenham, Southgate, Stamford Hill, Stoke Newington, Stroud Green, Tottenham, Tottenham Hale, Totteridge, Totteridge & Whetstone, Tufnell Park, Turnpike Lane, Upper Edmonton, Upper Holloway, Waltham Forest, West Finchley, West Green, Whetstone, White Hart Lane, Winchmore Hill, Wood Green, Woodside Park)
Lock Cylinders in South East London (Abbey Wood, Anerley, Avery Hill, Bellingham, Bermondsey, Blackheath, Blackheath Park, Borough, Bostall Woods, Brockley, Camberwell, Catford, Charlton, Crofton Park, Crystal Palace, Denmark Hill, Deptford, Deptford High Street, Docklands, Dulwich, East Dulwich, Elephant and Castle, Elmers, End Eltham, Forest Hill, Gipsy Hill, Greenwich, Grove Park, Herne Hill, Hither Green, Honor Oak, Honor Oak Park, Horniman Museum, Kennington, Kidbrooke, Ladywell, Lambeth, Lambeth North, Lee, Lee Green, Lesnes Abbey, Lewisham, London Bridge, Lower Sydenham, Mottingham, New Cross, New Cross Gate, New Eltham, New Kent Road, Newington, North Dulwich, Norwood, Norwood Junction, Nunhead, Old Kent Road, Oval, Peckham, Peckham Rye, Penge, Plumstead, Ranger's House, Riverside, Rotherhithe, Rye Lane, Shooter's Hill, South Bank, South Norwood, Southwark, Southwark Cathedral, St John's, Surrey Quays, Sydenham, Sydenham Hill, Thamesmead, Tulse Hill, Upper Norwood, Upper Sydenham, Walworth, Waterloo, Well Hall, West Dulwich, West Heath, West Norwood, Westminster Bridge , Woodside, Woolwich)
Lock Cylinders in South West London (Balham, Barnes, Barnes Bridge, Battersea, Belgravia, Brixton, Brompton, Brompton Road, Buckingham Palace, Bushey Mead, Castlenau, Chelsea, Chelsea Embankment, Cheyne Walk, Clapham, Clapham Common, Clapham Junction, Clapham North, Clapham South, Coldharbour Lane, Colliers Wood, Copse Hill, Cottenham Park, Cromwell Road, Earl's Court, Earlsfield, East Putney, East Sheen, Fulham, Fulham Broadway, Fulham Palace Road, Furzedown, Gloucester Road, Green Park, Haydons Road, Horseferry Road, Hyde Park Corner, Kensington Gore, Knightsbridge, Lavender Hill, Loughborough Junction, Merton, Mortlake, Nine Elms, Norbury, Parsons Green, Putney, Putney Bridge, Putney Heath, Putney Vale, Queen's Gate, Queens Road, Raynes Park, Rocks Lane, Roehampton, Sands End, Sloane Square, South Kensington, South Lambeth, South Wimbledon, Southfields, St James's Park, Stockwell, Streatham, Streatham Common, Streatham Hill, Summerstown, Tooting Bec, Tooting Broadway, Tooting Graveney, Upper Tooting, Vauxhall, Vauxhall Bridge, Victoria, Wandsworth, Wandsworth Common, Wandsworth Road, Wandsworth Town, West Brompton, West Hill, Westminster, Westminster Abbey, Wimbledon, Wimbledon Common, Wimbledon Park)
Lock Cylinders in West London (Acton, Acton Green, Acton Town, Barons Court, Bayswater, Bayswater Road, Bedford Park, Bond Street, Boston Manor, Brook Green, Chiswick, Chiswick High Road, Chiswick House, Chiswick Park, City of Westminster, Drayton Green, Ealing, Ealing Broadway, Ealing Common, East Acton, Elthorne Park, Goldhawk Road, Goodge Street, Great Portland Street, Great West Road, Gunnersbury, Hammersmith, Hammersmith & Fulham, Hanger Lane, Hanwell, High Street Kensington, Holland Park, Kensal Town, Kensington, Kensington & Chelsea, Ladbroke Grove, Lancaster Gate, Latimer Road, Maida Hill, Maida Vale, Marble Arch, Marylebone, Mayfair, North Ealing, North Kensington, Northfields, Notting Hill, Notting Hill Gate, Olympia, Oxford Circus, Oxford Street, Paddington, Park Lane, Piccadilly Circus, Queensway, Ravenscourt Park, Regent Street, Royal Oak, Shepherds Bush, Soho, South Acton, South Ealing, Stamford Brook, Tottenham Court Road, Turnham Green, Uxbridge Road, Warren Street, Warwick Avenue, Warwick Park, West Acton, West Ealing, West Kensington, West Kilburn, Westbourne Green, Westbourne Grove, Westbourne Park, Western Avenue, Westway, White City)

Wales

Lock Cylinders in Anglesey/Sir Fon (Beaumaris, Holyhead)
Lock Cylinders in Brecknockshire/Sir Frycheiniog (Brecon, Builth Wells, Hay-on-Wye, Talgarth)
Lock Cylinders in Caernarfonshire/Sir Gaernarfon (Bangor, Conwy,)
Lock Cylinders in Carmarthenshire/Sir Gaerfyrddin (Carmarthen)
Lock Cylinders in Cardiganshire/Ceredigion (Cardigan, Aberystwyth, New Quay, Tregaron)
Lock Cylinders in Denbighshire/Sir Ddinbych (Denbigh, Wrexham, Ruthin)
Lock Cylinders in Flintshire/Sir Fflint (Holywell, Buckley)
Lock Cylinders in Glamorgan/Morgannwg (Cardiff, Swansea, Barry, Caerphilly)
Lock Cylinders in Merioneth/Meirionnydd (Barmouth, Harlech)
Lock Cylinders in Monmouthshire/Sir Fynwy (Monmouth, Newport, Blackwood, Chepstow)
Lock Cylinders in Montgomeryshire/Sir Drefaldwyn (Montgomery, Newtown, Welshpool)
Lock Cylinders in Pembrokeshire/Sir Benfro (Pembroke, Milford Haven, Haverfordwest, Tenby,)
Lock Cylinders in Radnorshire/Sir Faesyfed (Knighton, New Radnor)

Scotland

Lock Cylinders in Aberdeenshire (Aberdeen, Peterhead)
Lock Cylinders in Angus/Forfarshire (Forfar, Dundee, Arbroath, Brechin, Montrose)
Lock Cylinders in Fife (Dunfermline, Cowdenbeath)
Lock Cylinders in Lanarkshire (Glasgow, Hamilton, Motherwell)
Lock Cylinders in Midlothian/Edinburghshire (Edinburgh)
Lock Cylinders in Renfrewshire (Johnstone, Port Glasgow, Kilmalcolm)