The PA postcode area, also known as the Paisley postcode area, is a group of postcode districts covering the post towns of Appin, Bishopton, Bridge of Orchy, Bridge of Weir, Cairndow, Campbeltown, Colintraive, Dalmally, Dunoon, Erskine, Gourock, Greenock, Inveraray, Isle of Bute, Isle of Coll, Isle of Colonsay, Isle of Gigha, Isle of Iona, Isle of Islay, Isle of Jura, Isle of Mull, Isle of Tiree, Johnstone, Kilmacolm, Lochgilphead, Lochwinnoch, Oban, Paisley, Port Glasgow, Renfrew, Skelmorlie, Tarbert, Taynuilt, Tighnabruaich and Wemyss Bay in Scotland.