THE LAFAYETTE PARISH LAND BRIEF
Land in the
Lafayette Loess Plains setting.
Lafayette Parish has 268.8 square miles of land in Louisiana. 3 mapped landscape regions meet across Lafayette Parish: Lafayette Loess Plains, Southern Holocene Meander Belts, Southern Backswamps.
Low coastal plains extend along the western Gulf, contrasting with more irregular inland country. Grassland was the principal natural cover, with river corridors and coastal features adding local variation.
Regional context: Western Gulf Coastal Plain ↗ · Regional mapping across the county footprint
Where the landscape changes
Lafayette Parish intersects 3 mapped regional units. The largest mapped shares are:
- Lafayette Loess Plains90.5%
- Southern Holocene Meander Belts8.5%
- Southern Backswamps1%
Mississippi Alluvial Plain in Lafayette Parish
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.
Read the regional source ↗Finding your parcel within Lafayette Parish
The atlas lists 8 cities, towns, townships, and Census communities associated with Lafayette Parish, including Lafayette, Broussard, Youngsville. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Lafayette Parish by land and water
The Census records 0.44 square miles of water within Lafayette Parish, or 0.2% of its total area. That share is close to Lafayette Parish’s 0.2%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Lafayette Parish has 4.8 times the land area of nearby Lafayette city (56.4 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Acadia Parish, Iberia Parish, St. Landry Parish, St. Martin Parish, Vermilion Parish within Louisiana. A tract near one of these lines should be matched to the county identifier on its own records.

