Which is England's Postal Code?
British postal codes are in two parts. The first part is either
one or two letters followed by one or two numbers. The letters of
the first part indicate the area, whilst the numbers narrow it down
to single towns or districts.
The second part of the postcode is a single number and two
letters, which is the 'route' number - larger premises (commercial
offices) will have a unique code, whereas residential addresses in
the same street often share one code. Long streets can have
multiple codes.
For example;
L4 9AH - The Liverpool district of Anfield.
PO12 3AA - Portsmouth Area, Gosport.
GU35 9RE - Guildford Area, Bordon.
London is different as the area code indicates broad compass
points; N, NW, SW, SE, W and E. Central London is split into WC and
EC (West Central and East Central). The numeric part indicates the
borough;
E17 - Walthamstow
SW19 - Wimbledon
N5 - Highbury