Sainte-Marie is a commune in Réunion, a French overseas department in the Indian Ocean. Located on the north side of the island of Réunion, it sits immediately east of and adjacent to Saint-Denis, the island's capital. The commune is part of the metropolitan area surrounding the main urban center of the island.
As a commune in Réunion, Sainte-Marie falls under French administrative jurisdiction and uses the euro as its currency. Its proximity to Saint-Denis makes it part of the densely populated northern region of Réunion, though specific details about its local economy, landmarks, or population characteristics would require additional sources.