THE PLAQUEMINES PARISH LAND BRIEF
Land in the
Deltaic Coastal Marshes and Barrier Islands setting.
Plaquemines Parish has 780.6 square miles of land in Louisiana. 2 mapped landscape regions meet across Plaquemines 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
Plaquemines Parish intersects 2 mapped regional units. The largest mapped shares are:
- Deltaic Coastal Marshes and Barrier Islands95.5%
- Southern Holocene Meander Belts4.5%
Finding your parcel within Plaquemines Parish
The atlas lists 9 cities, towns, townships, and Census communities associated with Plaquemines Parish, including Belle Chasse, Port Sulphur, Empire. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Plaquemines Parish by land and water
The Census records 1,786.6 square miles of water within Plaquemines Parish, or 69.6% of its total area. That share is close to Plaquemines Parish’s 69.6%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Plaquemines Parish has 339.7 times the land area of nearby Buras CDP (2.3 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Jefferson Parish, Orleans Parish, St. Bernard Parish within Louisiana. A tract near one of these lines should be matched to the county identifier on its own records.

