In what U.S. state is the fictional hospital in House M.D. located?

The fictional hospital in House M.D. is located in New Jersey.

Princeton-Plainsboro Teaching Hospital is presented as a teaching hospital in the fictional town of Princeton-Plainsboro, New Jersey. The setting reflects the show’s connection to the real Princeton area, while the hospital itself is not a real institution. Many exterior shots used Princeton University buildings or other locations to establish the setting.

The New Jersey location also helps distinguish the series from medical dramas set in New York, Chicago, or Seattle. Characters travel within the region, but the hospital remains the principal setting for House’s diagnostic work.

The fictional hospital name is sometimes mistaken for a real New Jersey medical center. Princeton-Plainsboro is invented for the series, even though Princeton is a real municipality and the production used recognizable local architecture.