The TD postcode area, also known as the Galashiels postcode area, is a group of postcode districts in Scotland and England around the River Tweed (from which the postcode letters derive) including Berwick-upon-Tweed, Cockburnspath, Coldstream, Cornhill-on-Tweed, Duns, Earlston, Eyemouth, Galashiels, Gordon, Hawick, Jedburgh, Kelso, Lauder, Melrose, Mindrum, Newcastleton, Selkirk.