One of the six communes (in addition to Listrac-Médoc, Moulis, Pauillac, Saint-Estèphe and Saint-Julien) within the French Haut-Médoc area which are independent appellations and are allowed to bear the place name on the label. Of these, Margaux is the most famous and largest municipality in the centre of the Médoc. The vineyards cover around 1,300 hectares of vines. The appellation also includes the municipalities of Arsac, Cantenac, Labarde and Soussans. The red wines produced there are among the best in the Médoc. The soils consist of a flat layer of coarse gravel over fine gravel mixed with limestone.
There are also well over 20 wineries classified as Cru-Bourgeois, such as Château Labégorce-Zédé and Château Siran, as well as a number of establishments classified as Cru Artisan. The dominant variety, Cabernet Sauvignon, generally has the largest share in the red wines that can often be stored for decades, but Merlot usually has a higher share compared to other large municipalities in the Médoc. This gives the tannin-rich Margaux wines a typical, slightly softer, softer note.