| Greater London | Greater London | 8866180 | E, EC, N, NW, SE, SW, W, WC |
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| Middlesex | Middlesex | 2234543 | EN, HA, TW, UB |
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| Birmingham | Birmingham | 1137100 | B |
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| Roman Catholic Archdiocese of Glasgow | Roman Catholic Archdiocese of Glasgow | 815000 | G1 4JY |
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| Glasgow | Glasgow | 635640 | G1-G80 |
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| Sheffield | Sheffield | 577800 | S0114 |
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| Manchester | Manchester | 547627 | M |
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| County Down | County Down | 531665 | BT |
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| Liverpool | Liverpool | 513441 | L |
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| Edinburgh | Edinburgh | 488050 | EH1-EH13 |
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| Brighton/Worthing/Littlehampton | Brighton/Worthing/Littlehampton | 474485 | BN |
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| Bristol | Bristol | 472465 | BS |
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| Leicester | Leicester | 464395 | LE1-LE67 |
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| London Borough of Croydon | London Borough of Croydon | 392224 | BR, CR, SE, SW |
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| London Borough of Barnet | London Borough of Barnet | 389101 | EN, HA, N, NW |
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| London Borough of Ealing | London Borough of Ealing | 369937 | HA, NW, UB, W, W5 2HL |
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| Coventry | Coventry | 366785 | CV |
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| Cardiff | Cardiff | 361469 | CF |
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| London Borough of Newham | London Borough of Newham | 358645 | E, IG |
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| London Borough of Brent | London Borough of Brent | 341221 | HA, NW, W |
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| London Borough of Bromley | London Borough of Bromley | 329578 | BR, CR, DA, SE, TN |
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| London Borough of Wandsworth | London Borough of Wandsworth | 329035 | SW |
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| London Borough of Enfield | London Borough of Enfield | 327224 | EN, N, E |
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| London Borough of Tower Hamlets | London Borough of Tower Hamlets | 325789 | E |
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| London Borough of Lambeth | London Borough of Lambeth | 316812 | SE, SW |
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| London Borough of Southwark | London Borough of Southwark | 311913 | SE, SE1P 5LX |
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| London Borough of Redbridge | London Borough of Redbridge | 310911 | E, IG, RM |
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| London Borough of Hillingdon | London Borough of Hillingdon | 310681 | HA, TW, UB, WD |
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| Newcastle upon Tyne | Newcastle upon Tyne | 300196 | NE |
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| London Borough of Lewisham | London Borough of Lewisham | 298653 | SE, BR |
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| Bradford | Bradford | 293277 | BD1-BD99 |
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| City of Milton Keynes | City of Milton Keynes | 292180 | MK |
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| Royal Borough of Greenwich | Royal Borough of Greenwich | 291080 | SE, DA, BR |
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| London Borough of Hounslow | London Borough of Hounslow | 290488 | TW, W, UB, SW |
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| Nottingham | Nottingham | 289301 | NG |
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| Bolton | Bolton | 285372 | BL1 - BL7 |
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| Brighton and Hove | Brighton and Hove | 277965 | BN1, BN2, BN3, BN41 |
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| Sunderland | Sunderland | 277417 | SR1, SR2, SR3, SR4, SR5, SR6, SR9 |
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| London Borough of Waltham Forest | London Borough of Waltham Forest | 275887 | E, IG |
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| Southampton | Southampton | 271173 | SO |
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| London Borough of Havering | London Borough of Havering | 264703 | RM, CM |
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| London Borough of Haringey | London Borough of Haringey | 261811 | N |
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| London Borough of Hackney | London Borough of Hackney | 261491 | E, EC, N, E8 1EA |
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| London Borough of Harrow | London Borough of Harrow | 261185 | HA, NW, UB |
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| Derby | Derby | 255394 | DE1, DE3, DE21-24, DE73 |
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| Stoke-on-Trent | Stoke-on-Trent | 249008 | ST |
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| London Borough of Bexley | London Borough of Bexley | 247835 | DA, SE |
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| Swansea | Swansea | 245508 | SA1-SA7 |
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| London Borough of Islington | London Borough of Islington | 220373 | EC, N, WC, NW |
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| London Borough of Barking and Dagenham | London Borough of Barking and Dagenham | 219992 | E, IG, RM |
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| London Borough of Camden | London Borough of Camden | 218049 | EC, N, NW, W, WC |
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| London Borough of Merton | London Borough of Merton | 214709 | CR, KT, SM, SW |
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| Luton | Luton | 213052 | LU |
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| City of Westminster | City of Westminster | 211365 | NW, SW, WC, W |
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| London Borough of Sutton | London Borough of Sutton | 210053 | SM, KT, CR, SM1 1EA |
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| York | York | 208400 | YO1, YO10, YO19, YO23, YO24, YO26, YO30, YO31, YO32 |
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| Milton Keynes | Milton Keynes | 207057 | MK1 - 15 |
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| Islington | Islington | 206125 | N1 |
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| Aberdeen | Aberdeen | 200680 | AB10-AB13 (parte), AB15, AB16, AB22-AB25 |
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| Morden | Morden | 199693 | SM4 |
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| Norwich | Norwich | 195971 | NR1–NR16 |
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| London Borough of Richmond upon Thames | London Borough of Richmond upon Thames | 194894 | TW, SW, KT |
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| Peterborough | Peterborough | 194000 | PE |
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| Swindon | Swindon | 192408 | SN1, SN2, SN3, SN4, SN5, SN6, SN25, SN26 |
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| Basildon | Basildon | 188848 | SS13 – SS16 |
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| Basildon | Basildon | 185900 | SS13 – SS16 |
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| London Borough of Hammersmith and Fulham | London Borough of Hammersmith and Fulham | 185238 | NW, W, SW, W6 9JU |
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| City of Peterborough | City of Peterborough | 183631 | PE |
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| Chelmsford | Chelmsford | 183326 | CM1, CM3, CM2 |
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| Royal Borough of Kingston upon Thames | Royal Borough of Kingston upon Thames | 168302 | KT, SW, TW |
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| South Somerset | South Somerset | 167861 | BA7-10, BA20-22 |
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| Huddersfield | Huddersfield | 162949 | HD1-5, HD7-8 |
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| Reading | Reading | 162666 | RG |
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| Southend-on-Sea | Southend-on-Sea | 160257 | SS1, SS2, SS22, SS3, SS99 |
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| Newport | Newport | 159600 | NP |
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| Knowsley | Knowsley | 157103 | L36 9YU |
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| Dacorum | Dacorum | 156123 | HP |
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| Oxford | Oxford | 152000 | OX1, OX2, OX3, OX4, OX33, OX44, OX postcode area |
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| Dundee | Dundee | 148280 | DD1, DD2, DD3, DD4, DD5 |
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| West Bromwich | West Bromwich | 146386 | B70, B71 |
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| Royal Borough of Kensington and Chelsea | Royal Borough of Kensington and Chelsea | 146154 | NW, SW, W |
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| Poole | Poole | 144800 | BH |
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| Birkenhead | Birkenhead | 142968 | CH41 |
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| Telford | Telford | 142723 | TF1, TF2, TF3, TF4, TF5, TF7 |
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| Preston | Preston | 141801 | PR1-PR2 |
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| Blackpool | Blackpool | 139305 | FY0-4 |
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| Stafford | Stafford | 138670 | ST16 |
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| Brighton | Brighton | 134293 | BN1, BN2, BN50, BN88 |
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| Sale | Sale | 134022 | M33 |
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| Newcastle-under-Lyme | Newcastle-under-Lyme | 125297 | ST5 |
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| Exeter | Exeter | 124180 | EX1-EX6 |
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| Cambridge | Cambridge | 123867 | CB |
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| Colchester | Colchester | 121859 | CO1 – CO7 |
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| High Wycombe | High Wycombe | 120256 | HP10, HP11, HP12, HP13, HP14, HP15 |
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| Gateshead | Gateshead | 120046 | NE8-NE11 |
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| Slough | Slough | 119070 | SL |
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| Chelmsford | Chelmsford | 115369 | CM1, CM2, CM3 |
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| Mendip | Mendip | 114881 | BA4 |
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| Rochdale | Rochdale | 110194 | OL16 |
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| Basingstoke | Basingstoke | 107355 | RG21, RG22, RG23, RG24, RG25 |
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