Blog · October 14, 2026 · Mississippi
Lamar County Flood Zone Map: checking a property's flood zone
The zone on FEMA's map affects insurance, building and resale near Arnold Line.
Main page: Lamar County, MS GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Hattiesburg, look at the Lamar County flood zone map: FEMA's zone label affects insurance, permits and resale. Covered here for Lamar County: locating a parcel on FEMA's map, decoding A, AE and X, and confirming the outline on the county map.
Checking the Lamar County flood zone map step by step
If you'd rather pan and zoom, use the National Flood Hazard Layer viewer, which lets you click a spot and read its zone, which applies near Sumrall as much as anywhere. A tract near West Hattiesburg without an address is still easy to locate: zoom in from the nearest road and click inside the land.
Opening the official parcel viewer
Begin with the Lamar County parcel viewer; it maps every tax parcel around Purvis and Oak Grove. Without an address in hand, follow the nearest road on the aerial until the lines appear, then click inside the one you want, whether the land is near West Hattiesburg or elsewhere in the county. With a lot near West Hattiesburg, write down the parcel ID while you have it open; each clerk in the county will want it.
Field tips
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Oak Grove, so load it before you lose signal. A printout of the tract near Lumberton is a good backup.
Lamar County in a few facts
Purvis holds the county offices, home to the main records offices. Smaller places on the map include Hattiesburg, Lumberton, Sumrall, and Arnold Line. About 66,217 people call Lamar County home (Census Bureau estimate, 2023) spread over roughly 497 square miles. Lamar County was organized in 1904, and some chains of title near West Hattiesburg are long.
The paper trail behind a parcel
For acreage around West Hattiesburg, the map is an index, not the title: recorded deeds, plats and easements for parcels in the county are filed with the Chancery Clerk. In and around Lumberton, bring the book and page listed on the parcel record so staff can find the deed fast.
Sections, lots and bearings
Mississippi uses the Public Land Survey System, so rural legal descriptions near Sumrall cite section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though real sections near Arnold Line vary in size. Copy the legal description from the record for the parcel near Purvis before you request a deed or survey.
What the zone letters mean
Closer to Bellevue, A and V zones mark the Special Flood Hazard Area, which FEMA defines as a 1% annual chance of flooding. In and around Hattiesburg, a shaded X area is moderate risk, roughly the 100- to 500-year range; plain X, or C on older maps, is minimal risk.
Beyond the mapped zones
Creeks and ditches near Lumberton aren't always studied in detail, so look for water marks and debris lines. Marshy spots near Lumberton can limit building too; the National Wetlands Inventory mapper shows mapped wetlands.
A word on accuracy
For property near West Hattiesburg, the acreage figure is a tax-roll number; just a licensed surveyor can set the real corners on the ground. If you're looking near Oak Grove, owner names and values update on a schedule, so a deed recorded last month can take weeks to appear.
Use the county map alongside FEMA
FEMA doesn't draw property lines, so check the Lamar County parcel viewer too for the outline of the tract near Baxterville.
What to request from a seller
On ground around Sumrall, ask the seller for any Elevation Certificate before closing; an insurance quote early keeps the budget honest.
Money questions tied to the zone
For a structure inside an A or V zone and a federally regulated lender is involved, mandatory purchase rules apply in communities in the NFIP, whether the land is near Sumrall or elsewhere in the county. New construction in a floodplain near Baxterville usually means extra permit review; ask the local floodplain administrator before you plan.
Getting answers from the right desk
Deeds, mortgages and recorded plats for land near Baxterville sit in the index kept by the Chancery Clerk, often with an online index. Building or septic questions for a lot near Lumberton go to planning, building or health offices, and the answer depends on jurisdiction.
Lamar County: common questions
Is my property near Hattiesburg in a flood zone?
Good question; look up the spot near Lumberton in FEMA's National Flood Hazard Layer viewer; no account is needed.
When is flood insurance required near Lumberton?
Short answer: lenders generally require it for buildings near West Hattiesburg in a Special Flood Hazard Area when the loan is federally regulated or insured; outside those zones it's your call.
What is a base flood elevation for land near Arnold Line?
Short answer: a BFE near Sumrall tells builders how high the lowest floor should be, and an Elevation Certificate compares the building to it.
How do I get a property removed from a flood zone for land near Arnold Line?
Generally, you can ask FEMA for a LOMA if surveyed elevations show the building near West Hattiesburg is above the BFE; it starts with an elevation survey.
Is there a way to export the map for land near Arnold Line?
Out toward Arnold Line, use the print button or a screenshot; downloads of raw data vary by county.
Open the official Lamar County, MS 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.