Another good source of UK Postcode data is doogal.co.uk. The author (Chris Bell) combines the Codepoint Open dataset with other ones from the ONS; that gives a more comprehensive list of postcodes (including ones that are no-longer in use and codes in Northern Ireland and the Isle of Man).<p>In his datasets he&#x27;s already done the conversion to regular lat&#x2F;lon.<p><a href="http:&#x2F;&#x2F;www.doogal.co.uk&#x2F;UKPostcodes.php" rel="nofollow">http:&#x2F;&#x2F;www.doogal.co.uk&#x2F;UKPostcodes.php</a>