Blog · October 14, 2026 · Mississippi
D'Iberville Flood Zone Map, Mississippi: a practical guide
The zone on FEMA's map affects insurance, building and resale near Gulfport.
Main page: Harrison County, MS GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before an offer near Long Beach, check the D'Iberville flood zone map: the zone on that map shapes insurance, permits and resale. What this D'Iberville guide covers: the free FEMA tools, what each zone label means, when insurance is required and how to challenge a map that looks wrong.
Getting started with the D'Iberville flood zone map
Flood zones come from FEMA's Flood Map Service Center: search an address around Gulfport, and pick the FIRMette or map view. Vacant ground around Pass Christian is still easy to locate: search the nearest road and click the spot.
Pulling up a parcel
Property in and around Long Beach appear on the Harrison County parcel viewer, which opens without registering. For a home near Long Beach, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. Out toward Gulfport, write down the parcel ID while you have it open; each clerk in the county will want it.
Sections, lots and bearings
Mississippi is laid out under the Public Land Survey System, so rural legal descriptions near Long Beach cite section, township and range. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though corrections make some sections near Biloxi odd-sized. Keep the legal description for land near Pass Christian for any title or survey request.
Places you'll see on the map
Biloxi is the county seat, which is where the courthouse records live. Smaller places on the map include Gulfport, Long Beach, and Pass Christian, each with its own cluster of lots. Roughly 210,612 people call Harrison County home (Census Bureau estimate, 2023) spread over some 574 square miles. Harrison County was formed in 1841, and some chains of title near Biloxi are long. Features like Tchoutacabouffa River, Biloxi Bay, and De Soto National Forest are easy to spot when you zoom out from Gulfport.
Which office to call
For assessment questions about property around Pass Christian go to the County Tax Assessor, since that office keeps the assessment data. Questions about what you can build around Gulfport are for the local planning and health departments, and the answer depends on jurisdiction.
When a parcel crosses a boundary
Harrison County borders St. Bernard Parish, LA, Hancock County, Jackson County, Pearl River County, and Stone County, and each of those keeps its own parcel map. Ground near Long Beach that runs to the line may be split across two assessors' files, so look at the adjacent map too. On ground around Biloxi, our state page links every bordering county map for Mississippi.
Limits of the parcel data
The acreage figure is an estimate; just a licensed surveyor establishes the real corners on land around Gulfport. Around Long Beach, owner names and values update on a schedule, so a deed recorded last month may not show yet.
Low spots and local drainage
Low-lying fields near Long Beach may not have detailed mapping, so look for water marks and debris lines. Marshy spots near Gulfport can limit building too; check the National Wetlands Inventory mapper for a first look.
Where D'Iberville fits in
D'Iberville lies within Harrison County, Mississippi, which means parcel data comes from the county. For a parcel near Long Beach, the municipality handles things like zoning, permits and utilities within town limits, and the county still keeps the parcel and deed records. Land beyond the city limits out by Long Beach generally answers to county rules rather than the town's.
What to request from a seller
Ask the listing agent about past flood claims on the property near Long Beach; an insurance quote early avoids surprises.
Decoding the flood zone labels
For land near Pass Christian, zones beginning with A or V mark the Special Flood Hazard Area, meaning a 1% or greater chance of flooding each year. Closer to Gulfport, shaded Zone X marks moderate flood hazard, between the 1% and 0.2% annual chance floods; unshaded X is minimal risk.
Use the county map alongside FEMA
FEMA's map shows zones but not ownership, so pair it with the Harrison County parcel viewer to see exactly which lot near Gulfport you're looking at.
On site with the map
The parcel map usually runs in a mobile browser, which helps when you're standing on land near Gulfport, though signal can drop in rural spots. A screenshot of the parcel near Biloxi with its ID keeps working without signal.
Insurance, lenders and building
With a lot near Pass Christian, get the Elevation Certificate if one exists: it compares the building to the BFE. New construction in a floodplain near Long Beach can trigger elevation rules; call the permitting office early.
Frequently asked
What is a base flood elevation near Long Beach?
It depends, but a BFE near Biloxi tells builders how high the lowest floor should be; surveyors near Gulfport use it often.
When is flood insurance required around Pass Christian?
For most people, for a building near Pass Christian in an A or V zone with a federally backed or regulated mortgage, it's generally required; elsewhere it's optional.
What does an AE label mean for a lot near Long Beach?
Short answer: both are high-risk zones, but only AE has a base flood elevation, which shapes building rules near Biloxi.
How often are flood maps updated near Pass Christian?
Generally, a new study can move a zone line near Long Beach; your community is notified before changes take effect.
Who do I call about a parcel near Biloxi?
For land near Gulfport, assessment goes to the County Tax Assessor and deeds to the Chancery Clerk.
Open the official Harrison 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.