| Postcode area | Area covered | Population | Households |
|---|---|---|---|
| AB | Aberdeen | 499,692 | 218,798 |
| AL | St Albans | 249,911 | 99,209 |
| B | Birmingham | 1,904,293 | 750,842 |
| BA | Bath | 434,539 | 183,530 |
| BB | Blackburn | 488,564 | 202,015 |
| BD | Bradford | 578,374 | 223,952 |
| BF | British Forces | ||
| BH | Bournemouth | 552,110 | 242,907 |
| BL | Bolton | 379,929 | 159,979 |
| BN | Brighton | 802,838 | 356,367 |
| BR | Bromley | 299,157 | 124,954 |
| BS | Bristol | 940,076 | 398,197 |
| BT | Northern Ireland | 1,787,720 | 693,967 |
| CA | Carlisle | 318,114 | 140,587 |
| CB | Cambridge | 421,151 | 167,640 |
| CF | Cardiff | 1,005,305 | 419,896 |
| CH | Chester | 659,880 | 285,880 |
| CM | Chelmsford | 653,626 | 270,044 |
| CO | Colchester | 411,411 | 176,939 |
| CR | Croydon | 405,236 | 158,695 |
| CT | Canterbury | 482,627 | 206,290 |
| CV | Coventry | 821,033 | 341,504 |
| CW | Crewe | 309,487 | 130,803 |
| DA | Dartford | 430,139 | 173,329 |
| DD | Dundee | 280,568 | 128,312 |
| DE | Derby | 730,125 | 306,586 |
| DG | Dumfries and Galloway | 151,139 | 67,885 |
| DH | Durham | 309,030 | 132,814 |
| DL | Darlington | 360,734 | 156,814 |
| DN | Doncaster | 756,058 | 320,303 |
| DT | Dorchester | 212,796 | 93,053 |
| DY | Dudley | 410,847 | 171,692 |
| E | East London | 989,043 | 370,613 |
| EC | Central London | 33,956 | 17,102 |
| EH | Edinburgh | 868,113 | 389,353 |
| EN | Enfield | 344,780 | 137,907 |
| EX | Exeter | 547,401 | 235,895 |
| FK | Falkirk and Stirling | 276,371 | 119,790 |
| FY | Blackpool | 276,593 | 125,986 |
| G | Glasgow | 1,183,614 | 540,601 |
| GL | Gloucester | 605,458 | 257,602 |
| GU | Guildford | 726,120 | 288,537 |
| HA | Harrow | 480,678 | 169,132 |
| HD | Huddersfield | 262,843 | 111,694 |
| HG | Harrogate | 138,214 | 59,455 |
| HP | Hemel Hempstead | 488,592 | 195,951 |
| HR | Hereford | 176,308 | 75,400 |
| HS | Outer Hebrides | 27,663 | 12,565 |
| HU | Hull | 443,219 | 191,836 |
| HX | Halifax | 160,137 | 68,980 |
| IG | Ilford | 335,693 | 119,754 |
| IP | Ipswich | 595,883 | 252,895 |
| IV | Inverness | 228,056 | 98,990 |
| KA | Kilmarnock | 370,877 | 166,467 |
| KT | Kingston upon Thames | 529,633 | 214,274 |
| KW | Kirkwall | 53,132 | 24,290 |
| KY | Kirkcaldy | 363,956 | 160,089 |
| L | Liverpool | 856,675 | 370,680 |
| LA | Lancaster | 328,926 | 143,213 |
| LD | Llandrindod Wells | 50,225 | 22,291 |
| LE | Leicester | 985,352 | 391,460 |
| LL | Llandudno | 537,252 | 232,655 |
| LN | Lincoln | 293,141 | 126,372 |
| LS | Leeds | 774,677 | 330,676 |
| LU | Luton | 336,095 | 129,149 |
| M | Manchester | 1,167,414 | 492,884 |
| ME | Rochester | 606,891 | 245,786 |
| MK | Milton Keynes | 508,035 | 202,926 |
| ML | Motherwell | 382,997 | 168,005 |
| N | North London | 847,197 | 344,938 |
| NE | Newcastle upon Tyne | 1,162,976 | 510,229 |
| NG | Nottingham | 1,163,617 | 493,228 |
| NN | Northampton | 653,055 | 272,356 |
| NP | Newport | 488,569 | 206,539 |
| NR | Norwich | 722,618 | 315,784 |
| NW | North West London | 553,732 | 222,208 |
| OL | Oldham | 462,590 | 188,194 |
| OX | Oxford | 613,492 | 242,551 |
| PA | Paisley | 321,350 | 148,778 |
| PE | Peterborough | 890,470 | 373,108 |
| PH | Perth | 165,118 | 73,021 |
| PL | Plymouth | 543,016 | 232,152 |
| PO | Portsmouth | 822,540 | 352,453 |
| PR | Preston | 520,366 | 219,388 |
| RG | Reading | 778,419 | 314,408 |
| RH | Redhill | 531,923 | 217,143 |
| RM | Romford | 517,305 | 205,322 |
| S | Sheffield | 1,358,186 | 578,058 |
| SA | Swansea | 730,075 | 315,791 |
| SE | South East London | 988,126 | 412,444 |
| SG | Stevenage | 402,479 | 167,182 |
| SK | Stockport | 603,540 | 260,549 |
| SL | Slough | 373,407 | 144,554 |
| SM | Sutton | 217,171 | 87,907 |
| SN | Swindon | 458,798 | 191,252 |
| SO | Southampton | 665,472 | 276,330 |
| SP | Salisbury | 232,282 | 94,658 |
| SR | Sunderland | 250,843 | 109,612 |
| SS | Southend-on-Sea | 518,631 | 216,682 |
| ST | Stoke-on-Trent | 644,416 | 275,646 |
| SW | South West London | 877,183 | 382,790 |
| SY | Shrewsbury | 341,952 | 144,660 |
| TA | Taunton | 322,408 | 139,414 |
| TD | Galashiels | 112,644 | 52,111 |
| TF | Telford | 212,536 | 85,637 |
| TN | Tonbridge | 681,747 | 286,228 |
| TQ | Torquay | 281,112 | 125,365 |
| TR | Truro | 294,061 | 127,803 |
| TS | Cleveland | 602,320 | 256,341 |
| TW | Twickenham | 491,918 | 193,508 |
| UB | Southall | 371,413 | 126,879 |
| W | West London | 531,690 | 236,493 |
| WA | Warrington | 616,482 | 261,804 |
| WC | Central London | 35,745 | 15,757 |
| WD | Watford | 256,476 | 103,336 |
| WF | Wakefield | 512,784 | 214,107 |
| WN | Wigan | 309,156 | 131,514 |
| WR | Worcester | 287,838 | 122,730 |
| WS | Walsall | 449,728 | 181,669 |
| WV | Wolverhampton | 396,187 | 162,933 |
| YO | York | 562,761 | 242,140 |
| ZE | Lerwick | 23,086 | 9,915 |