The town in The Truman Show was a full-scale set with a giant dome and about 5,000 cameras watching Truman’s life, so it was “town-sized” rather than a normal street set. The fictional town was called Seahaven , and the movie’s real-world filming location was Seaside, Florida.

What that means

  • It was designed to function like an entire small town, not just a single block.
  • The film describes it as a manufactured world built to keep Truman inside it.
  • So if you’re asking for a square-footage number, the film sources I found don’t give a precise size.

Quick context

The best concrete detail available is that the set was a massive dome-backed production environment with thousands of cameras, which is why Seahaven feels so convincing on screen. In plain terms, it was big enough to contain homes, streets, shops, and public spaces as a complete fake town.

If you want, I can also give you a scene-by-scene breakdown of Seahaven’s layout.