Where is Welsh spoken?
Wales Mainly in North and West Wales (for details see the sources quoted just above). Mid-Wales is also part of the Welsh-speaking zone, known as y Fro Gymraeg, but so depopulated that it s very vulnerable: it might not take much English-speaking immigration for the zone to split into two. There are a few historically Welsh-speaking areas just over the border into England. Whether anyone still speaks Welsh there nowadays I couldn t say, but they did until recently. It s been claimed that as many as 20,000 people in London can speak Welsh. Then there s Patagonia (see below). And of course there are Welsh speakers, whether ex-pats or learners, scattered all over the globe. See Pamela Petro s book about the ex-pat Welsh communities of the world, Travels in an Old Tongue.
