Blog · October 14, 2026 · Louisiana
St. Landry Parish Flood Zone Map: checking a property's flood zone
Flood zones are set by FEMA, and checking one near Le Moyen takes a few minutes.
Main page: St. Landry Parish, LA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Le Moyen, check the St. Landry Parish flood zone map: the zone on that map shapes insurance, building rules and resale. What this St. Landry Parish guide covers: locating a parcel on FEMA's map, reading the zone codes, and pairing it with the St. Landry Parish parcel viewer.
The St. Landry Parish flood zone map: start here
For a more interactive look, open the National Flood Hazard Layer viewer, which draws the zones over aerial imagery, whether the land is near Jean Lafitte National Historical Park and Preserve or elsewhere in the parish. A tract near Grand Prairie without an address can still be found: zoom in from Interstate 49 then click the parcel area.
Pulling up a parcel
Lots and tracts near Le Moyen are published on the St. Landry Parish parcel viewer, free to use and open without a login. If you're looking near Opelousas, type a street address, an owner's name or a parcel number, then pick the result to center the map on it. With a lot near Lawtell, save the parcel ID before closing the panel; every office in the parish uses it to find the file.
What the zone letters mean
Closer to Grand Coteau, A and V zones are Special Flood Hazard Areas, meaning a 1% or greater chance of flooding each year. For a tract near Eunice, a shaded X area marks moderate flood hazard, roughly the 100- to 500-year range; plain X, or C on older maps, is minimal risk.
Neighboring parcel maps
St. Landry Parish meets Acadia Parish, Avoyelles Parish, Evangeline Parish, Lafayette Parish, and Pointe Coupee Parish, all with their own assessor records. Acreage along the edge near Lebeau can show up in two parish records, so look at the adjacent map too. In and around Jean Lafitte National Historical Park and Preserve, our state page lists every bordering parish map across Louisiana.
Low spots and local drainage
Small streams around Grand Coteau may not have detailed mapping, so walk the land after rain. Wetlands near Krotz Springs can limit building even outside a flood zone; check the National Wetlands Inventory mapper for a first look.
St. Landry Parish in a few facts
Opelousas serves as the county seat, home to the main records offices. Smaller places on the map include Eunice, Arnaudville, Grand Coteau, and Krotz Springs. Around 81,464 people live in St. Landry Parish (Census Bureau estimate, 2023) across about 924 square miles. The parish was organized in 1807, which matters when you trace an old farm's title around Morrow. Features like Atchafalaya National Wildlife Refuge are easy to spot when you zoom out.
Limits of the parcel data
The acreage figure is an estimate; just a licensed surveyor establishes the real boundary on land around Jean Lafitte National Historical Park and Preserve. For a tract near Lebeau, records update in batches, so a deed recorded last month might lag behind.
Matching the zone to the lot lines
Where a floodplain cuts across acreage near Lawtell, the location of the house or building pad decides a lot.
Lenders and permits
If a building sits in a Special Flood Hazard Area and a federally regulated lender is involved, flood insurance is generally required where the community participates in the National Flood Insurance Program, and that holds around Grand Prairie too. Remodeling a house in a zone near Morrow can trigger elevation rules; check with the parish or town building office early.
How land is described here
Louisiana is laid out under the Public Land Survey System, which means a tract near Leonville is described by section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though real sections near Le Moyen vary in size. Keep the legal description for land near Grand Prairie for any title or survey request.
A short flood checklist
Around Krotz Springs, request about past flood claims before closing; getting a quote early keeps the budget honest.
Recorded documents worth pulling
Before you sign anything, get the recorded deed through the Clerk of Court; the parcel line is a drawing of it, whether the land is near Lebeau or elsewhere in the parish. Older tracts near Lebeau can go back through several deeds, so a title company can sort it out before a purchase.
St. Landry Parish: common questions
Do I need to worry about flooding in Zone X for land near Grand Coteau?
Usually, X zones around Grand Coteau are lower risk, not no risk; FEMA notes that a large share of claims come from these areas.
How do I get a property removed from a flood zone near Opelousas?
For most people, you can ask FEMA for a LOMA if surveyed elevations show the building near Grand Coteau is above the BFE; a surveyor's elevation data supports it.
Is my property near Melville in a flood zone?
Generally, search the address near Grand Coteau on FEMA's Flood Map Service Center, which takes a couple of minutes.
How often are flood maps updated for land near Leonville?
It depends, but a new study can move a zone line near Grand Prairie; your community is notified before changes take effect.
How do I save a parcel from the viewer near Lebeau?
Near Le Moyen, some viewers offer PDF export; downloads of raw data vary by parish.
Open the official St. Landry Parish, LA parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.