MySQL count of Geographical postcode selections, grouped

Here is an example for a query to give you a count of members/customers/recipients within a postcode2 area, listed (group by) the postcode2 area.

What do I mean? I wanted to know how many club members were in different England postcode areas thus:

Quote:   

POSTCODE2 COUNT
CA 34
CB 12
...
HP 22
..
MK 62

use this

Code:   

-- England count grouped by postcode2
SELECT SUBSTRING(postcode,1,2) AS POSTCODE2, COUNT(*) AS COUNT
FROM members
WHERE (SUBSTRING(postcode,1,2) IN
('BR','CR','DA','EC','EN','HA','IG','KT','NW','RM','SE','SM','SW','TW','UB','WC','WD','BN','CM','CT','GU','HP','LU','ME','MK',
'PO','RG','RH','SG','SL','SO','SS','TN','CB','CO','DE','DN','IP','LE','LN','NG','NR','PE','CV','DY','HR','NN','ST','TF','WR','WS',
'WV','DH','DL','HG','HU','LS','NE','SR','TS','WF','YO','BB','BD','BL','CA','CH','CW','FY','HD','HX','LA','OL','PR','SK','WA',
'WN','BA','BH','BS','DT','EX','GL','AL','PL','SN','SP','TA','TQ','TR','OX')
OR postcode REGEXP ('^E[1-9]')
OR postcode REGEXP ('^N[1-9]')
OR postcode REGEXP ('^W[1-9]')
OR postcode REGEXP ('^S[1-9]')
OR postcode REGEXP ('^B[1-9]')
OR postcode REGEXP ('^L[1-9]')
OR postcode REGEXP ('^M[1-9]'))
GROUP BY SUBSTRING(postcode,1,2);