THE ST. BERNARD PARISH LAND BRIEF
Land in the
Deltaic Coastal Marshes and Barrier Islands setting.
St. Bernard Parish has 377.5 square miles of land in Louisiana. 2 mapped landscape regions meet across St. Bernard Parish: Deltaic Coastal Marshes and Barrier Islands, Southern Holocene Meander Belts.
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 ↗ · Regional mapping across the county footprint
Where the landscape changes
St. Bernard Parish intersects 2 mapped regional units. The largest mapped shares are:
- Deltaic Coastal Marshes and Barrier Islands90.9%
- Southern Holocene Meander Belts9.1%
Finding your parcel within St. Bernard Parish
The atlas lists 6 cities, towns, townships, and Census communities associated with St. Bernard Parish, including Chalmette, Meraux, Violet. The list includes overlapping geography types and does not divide the county into exclusive service areas.
St. Bernard Parish by land and water
The Census records 1,777.7 square miles of water within St. Bernard Parish, or 82.5% of its total area. That share is close to St. Bernard Parish’s 82.5%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, St. Bernard Parish has 1,708.3 times the land area of nearby Delacroix CDP (0.22 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Orleans Parish, Plaquemines Parish, St. Tammany Parish within Louisiana. A tract near one of these lines should be matched to the county identifier on its own records.

