THE NEW ORLEANS LAND BRIEF
Land in the
Deltaic Coastal Marshes and Barrier Islands setting.
New Orleans city has 169.6 square miles of land in Orleans Parish. Its Census reference point is in Deltaic Coastal Marshes and Barrier Islands, within Mississippi Alluvial Plain.
The Mississippi's broad alluvial plain includes river terraces, swales and natural levees. Small changes in elevation distinguish local settings within this generally flat river landscape.
Regional context: Mississippi Alluvial Plain ↗ · Classification at the Census reference point
New Orleans and Orleans Parish
New Orleans is associated with Orleans Parish in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
New Orleans by land and water
The Census records 180.3 square miles of water within New Orleans, or 51.5% of its total area. That share is close to Orleans Parish’s 51.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, New Orleans city has 23.6 times the land area of nearby Chalmette CDP (7.17 square miles). These areas describe boundaries, not comparable property prices.

