There is no separate "magical land" in the Harry Potter universe; the wizarding world not only coexists alongside the world of Muggles, but also is embedded within it. Only one settlement in Britain, the village of Hogsmeade, is home to an entirely magical population. The vast majority of witches' and wizards' locations are integrated within the wider non-magical area. Wizards will often live in small communities of several families within Muggle villages such as Godric's Hollow in the West Country (home of the Dumbledores and the Potters) or Tinworth in Cornwall. The all-wizard Weasley, Diggory, Lovegood, and Fawcett families live near the Muggle village of Ottery St Catchpole, in Devon. Many wizarding houses in the Harry Potter books are depicted as being on the outskirts of towns, usually isolated from most of the town.

Similarly, the wizarding high street Diagon Alley lies in central London, just off Charing Cross Road. A train called the Hogwarts Express departs from the real King's Cross station, albeit from Platform 9¾. These locations are hidden by a combination of Muggle-repelling charms, illusions, and other magical protections. Many magical locations, such as the Isle of Drear off the coast of Scotland, or the Quidditch World Cup Stadium, and the wizarding prison, Azkaban, are rendered "unplottable", or impossible to locate on a map. This is further banked by the natural tendency of non-magical people to ignore anything they cannot explain or understand. Hogwarts Castle appears as abandoned ruins to any Muggles close enough to see. Although wizarding society lives for the most part directly alongside Muggles, the interaction between the two communities is virtually non-existent since the International Statute of Wizarding Secrecy was introduced in 1692. Few wizards are aware of basic Muggle culture (for instance, most wizards do not understand Muggle clothing customs). On the odd occasions when it may be necessary for a wizard or witch to dress in Muggle clothing, the result is usually comical. While the series is set in Great Britain, there is evidence that the wizarding world has locations throughout the globe. This is shown in Harry Potter and the Goblet of Fire, when it describes many people at the Quidditch World Cup speaking foreign languages. The number of Irish wizards working for the Ministry and attending Hogwarts, as well as the various nationalities attending Beauxbatons and Durmstrang, suggest the wizarding world's borders differ from the geopolitical divisions of the Muggle world. However, countries such as Bulgaria and Ireland have national teams representing them at the Quidditch World Cup - even though the muggles of these countries have no idea that the competition is taking place.

It is also suggested in Harry Potter and the Prisoner of Azkaban that wizards played a part in ancient Egyptian history, and possibly are behind many historical wonders in the modern world such as the Egyptian pyramids and tombs.