THE ST. HELENA PARISH LAND BRIEF
Land in the
Southern Pine Plains and Hills setting.
St. Helena Parish has 408.5 square miles of land in Louisiana. 4 mapped landscape regions meet across St. Helena Parish: Southern Pine Plains and Hills, Southern Rolling Plains, Baton Rouge Terrace, among others.
Irregular plains of sand, silt and clay support a mix of pine and hardwood landscapes. The region has more relief than the lower coastal plain, with generally gentle stream gradients.
Regional context: Southeastern Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
St. Helena Parish intersects 4 mapped regional units. The largest mapped shares are:
- Southern Pine Plains and Hills83.9%
- Southern Rolling Plains6.8%
- Baton Rouge Terrace5.6%
- Gulf Coast Flatwoods3.7%
Mississippi Valley Loess Plains in St. Helena Parish
Windblown loess blankets irregular plains and rolling hills, with steeper bluffs near the Mississippi River. Flatter eastern areas contrast with the more deeply cut bluff country.
Read the regional source ↗Southern Coastal Plain in St. Helena Parish
Low plains mingle with barrier islands, lagoons, marshes and inland lake districts. Coastal and inland settings vary substantially within this warm southeastern landscape.
Read the regional source ↗Finding your parcel within St. Helena Parish
The atlas lists 2 cities, towns, townships, and Census communities associated with St. Helena Parish, including Greensburg, Montpelier. The list includes overlapping geography types and does not divide the county into exclusive service areas.
St. Helena Parish by land and water
The Census records 1.08 square miles of water within St. Helena Parish, or 0.3% of its total area. That share is close to St. Helena Parish’s 0.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, St. Helena Parish has 162.2 times the land area of nearby Greensburg town (2.52 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets East Baton Rouge Parish, East Feliciana Parish, Livingston Parish, Tangipahoa Parish within Louisiana. A tract near one of these lines should be matched to the county identifier on its own records.

