Blog · October 14, 2026 · Mississippi
Olive Branch Flood Zone Map, Mississippi: a practical guide
The zone on FEMA's map affects insurance, building and resale near Horn Lake.
Main page: DeSoto County, MS GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before you buy or build near Walls, check the Olive Branch flood zone map: FEMA's zone label affects insurance, permits and resale. What this Olive Branch guide covers: finding the address on FEMA's map, reading the zone codes, and pairing it with the DeSoto County ArcGIS parcel map.
Getting started with the Olive Branch flood zone map
Start with FEMA's Flood Map Service Center: search an address around Hernando, and pick the FIRMette or map view. A tract near Hernando without an address can still be found: zoom in from Interstate 269 and click the spot.
The free map to start with
Begin with the DeSoto County ArcGIS parcel map; it covers each assessed parcel in the county, Hernando included. Near Hernando, type a street address, an owner's name or a parcel number, and the matching parcel lights up. For a tract near Southaven, the parcel card normally shows the owner of record, assessed acreage, the parcel number and in many cases the last transfer.
Olive Branch and the county around it
Olive Branch sits in DeSoto County, Mississippi, and the county assessor maps its lots. With a lot near Hernando, the municipality handles matters such as zoning, permits and utilities inside its limits, and the county still keeps the parcel and deed records. Acreage past the town limits toward Hernando often falls under county rules, not municipal ones.
Beyond the mapped zones
Low-lying fields near Walls aren't always studied in detail, so ask neighbors about past flooding. Wet ground around Walls is a separate issue from flood zones; check the National Wetlands Inventory mapper for a first look.
Reading the legal description
Mississippi follows the Public Land Survey System, which means a tract near Southaven is described by section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though corrections make some sections near Hernando odd-sized. Write down the legal description for the tract near Southaven before you request a deed or survey.
A short flood checklist
Ask the listing agent about past flood claims on the property near Walls; getting a quote early keeps the budget honest.
The paper trail behind a parcel
Before you sign anything, get the recorded deed through the Chancery Clerk; the parcel map near Hernando only summarizes it. On ground around Southaven, have ready the book and page listed on the parcel record so staff can find the deed fast.
Reading A, AE and X
Zone AE includes a base flood elevation (BFE), while plain Zone A does not; that elevation drives building rules near Southaven. For property near Horn Lake, a low-risk label isn't a guarantee: according to FEMA, floods happen outside mapped zones too.
Getting answers from the right desk
If the acreage or value on a parcel near Hernando looks off are handled by the County Tax Assessor, since that office keeps the assessment data. Questions about what you can build around Horn Lake go to planning, building or health offices, and the answer depends on jurisdiction.
Matching the zone to the lot lines
FEMA's map shows zones but not ownership, so check the DeSoto County ArcGIS parcel map too to confirm you have the right parcel near Hernando.
DeSoto County in a few facts
Hernando is the county seat, where most land records are kept. You'll also find Southaven, Horn Lake, and Walls, each with its own cluster of lots. Around 193,247 people live in DeSoto County (Census estimate, 2023) across some 476 square miles. DeSoto County was formed in 1836, and some chains of title near Hernando are long.
What a flood zone means for a buyer
If the land is near Hernando, an Elevation Certificate from a surveyor helps: it can change the insurance price a lot. Remodeling a house in a zone near Walls can trigger elevation rules; check with the county or town building office before you plan.
Before you lean on the lines
The acreage figure is a tax-roll number; only a licensed surveyor can set the real boundary on land around Walls. For a home near Walls, records update in batches, so a deed recorded last month might lag behind.
Questions about the Olive Branch flood zone map
Is AE a high-risk flood zone for land near Hernando?
Good question; an AE zone has a 1% annual chance of flooding and a base flood elevation, which shapes building rules near Walls.
When is flood insurance required for land near Horn Lake?
Good question; for a building near Horn Lake in an A or V zone with a federally backed or regulated mortgage, it's generally required; elsewhere it's optional.
Do I need to worry about flooding in Zone X for land near Southaven?
For most people, X zones around Horn Lake are lower risk, not no risk, and floods still happen outside high-risk zones.
What is a base flood elevation around Horn Lake?
A BFE near Walls tells builders how high the lowest floor should be, and an Elevation Certificate compares the building to it.
What's a legal description near Southaven?
For property near Horn Lake, deeds use lot and block, metes and bounds or survey descriptions; copy it for any survey or title request.
Open the official DeSoto 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.