All 121 UK postcode areas England: AL B BA BB BD BH BL BN BR BS CA CB CH CM CO CR CT CV CW DA DE DH DL DN DT DY E EC EN EX FY GL GU HA HD HG HP HR HU HX IG IP KT L LA LE LN LS LU M ME MK N NE NG NN NR NW OL OX PE PL PO PR RG RH RM S SE SG SK SL SM SN SO SP SR SS ST SW SY TA TF TN TQ TR TS TW UB W WA WC WD WF WN WR WS WV YO Scotland: AB DD DG EH FK G HS IV KA KW KY ML PA PH TD ZE Wales: CF LD LL NP SA Northern Ireland: BT
Technically Scotland and England: DG (Dumfries & Galloway), TD (Tweeddale) Technically Wales and England: CH (Chester), GL (Gloucester), HR (Hereford), LD (Llandrindod Wells), LL (Llandudno), NP (Newport), SY (Shrewsbury)
Not included: GY (Guernsey), IM (Isle of Man), JE (Jersey) Non-geographic: BF BX GIR XM
Postcode areas named after something that isn't obvious Places: FY (the Fylde), SP (Salisbury Plain), TD (Tweeddale), ZE (Zetland) Composites: IG (Ilford and Barking?), KA (Kilmarnock and Ayr?), SM (Sutton and Morden?)
1-letter postcode areas
B (Birmingham), E (East London), G (Glasgow), L (Liverpool), M (Manchester), N (North London), S (Sheffield), W (West London)
Double letter postcode areas
BB (Blackburn), DD (Dundee), LL (Llandudno), NN (Northampton), SS (Southend-on-Sea)
Postcode areas that are also words in Scrabble
AB AL BA CH DA DE EH EN EX FY GU HA KA KY LA ME NE OX PA PE PO SO ST TA YO ZE
Most common first letter: 15 Ss; 10 Bs and Cs; 9 Ds and Ws Least common first letter: 0 Js, Vs or Xs; 1 U, Y and Z
Compass points Most northerly: ZE (Lerwick) Most westerly: BT (Belfast) Most southerly: TR (Truro) Most easterly: NR (Norwich)
Postcode areas in Greater London(definitive list)
EC WC / N E W / SE SW NW / BR CM CR DA EN HA IG KT RM SL SM TN TW UB WD
The postcode area with the most neighbours
PE (Peterborough) with 9... LN NG LE NN MK SG CB IP NR
Postcode areas with the most postcode districts
81 BT (Belfast, i.e. the whole of Northern Ireland)
79 B (Birmingham)
67 LL (Llandudno), PA (Paisley)
61 NE (Newcastle-upon-Tyne)
Postcode areas with the fewest postcode districts
3 ZE (Lerwick)
5 HG (Harrogate)
7 HX (Halifax), LU (Luton), SM (Sutton)
WC either has 2 or 14, depending on whether you count WC1A, WC1B, WC1E, WC1H, WC1N, WC1R, WC1V, WC1X, WC2A, WC2B, WC2E, WC2H, WC2N and WC2R as separate districts.
EC either has 4 or 23, depending on whether you count EC1A, EC1M, EC1N, EC1R, EC1V, EC1Y, EC2A, EC2M, EC2N, EC2R, EC2V, EC2Y, EC3A, EC3M, EC3N, EC3R, EC3V, EC4A, EC4M, EC4N, EC4R, EC4V and EC4Y as separate districts.
Postcode areas with the highest numbered postcode districts
B98 (Birmingham)
BT94 (Belfast)
M90 (Manchester)
G84 (Glasgow)
CF83 (Cardiff
Postcode areas with the lowest numbered postcode districts
BL0, BS0, CM0, CR0, FY0, HA0, PR0, SL0, SS0
Postcode areas with only single-digit districts: BR EC FY HA HD HG HR HS HX JE LD SL SM SR WC WN ZE Postcode areas with only double-digit districts: AB LL SO
Postcode areas with the highest population(2011 census)
1,904,658 B (Birmingham)
1,876,695 BT (Belfast)
1,358,507 S (Sheffield)
1,183,614 G (Glasgow)
1,167,402 M (Manchester)
1,163,185 NG (Nottingham)
1,162,698 NE (Newcastle upon Tyne)
1,005,334 CF (Cardiff)
990,035 E (East London)
988,702 SE (South East London)
Postcode areas with the lowest population(England and Wales, 2011 census)
33,205 EC (East Central London)
35,995 WC (Western Central London)
49,792 LD (Llandrindod Wells)
138,343 HG (Harrogate)
160,378 HX (Halifax)
176,493 HR (Hereford)
212,061 TF (Telford)
213,203 DT (Dorchester)
217,048 SM (Sutton)
232,524 SP (Salisbury)
The average population is 551,750, which is almost exactly BH (Bournemouth)
The smallest populations in Scotland are ZE (Lerwick, 23086), HS (Hebrides 27663) and KW (Kirkwall, 53132)
Postcode areas by area Smallest: 1 square mile - WC (West Central London) Largest: 6243 square miles - IV (Inverness) Average: 774 square miles (which is roughly RG, Reading)
Postcode areas I have never been to
AB BB BT DD DG (I know, right?) FK IV KA KW ML PH ZE