Blog · October 14, 2026 · Mississippi
Gulfport Flood Zone Map, Mississippi: a practical guide
The zone on FEMA's map affects insurance, building and resale near Pass Christian.
Main page: Harrison County, MS GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before you buy or build near D'Iberville, check the Gulfport flood zone map: FEMA's zone label affects insurance, building rules and resale. What this Gulfport guide covers: locating a parcel on FEMA's map, reading the zone codes, and confirming the outline on the county map.
The Gulfport flood zone map: start here
The official source is FEMA's Flood Map Service Center: type an address near Pass Christian, and pick the FIRMette or map view. Rural land near Long Beach with no street number is still easy to locate: zoom in from US Route 90 then click the parcel area.
Getting to the right map
Begin with the Harrison County parcel viewer; it covers every assessed parcel around Long Beach and Pass Christian. If you're looking near D'Iberville, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. If the land is near Pass Christian, save the parcel ID from that panel; every clerk in the county asks for it first.
Where Gulfport fits in
Gulfport sits in Harrison County, Mississippi, so its parcels are on the county's map. Gulfport is also the county seat, so deeds and plats are filed in town. For acreage around Biloxi, the municipality handles things like zoning, permits and utilities within town limits, but the county runs assessment and recording. Land beyond the city limits out by Biloxi usually answers to county rules, not municipal ones.
When a parcel crosses a boundary
Harrison County meets St. Bernard Parish, LA, Hancock County, Jackson County, Pearl River County, and Stone County; every one of them runs a separate parcel map. Acreage along the edge near D'Iberville can show up in two county records, so look at the adjacent map before you assume the acreage. The Platbookmapper state page links every neighboring county map across Mississippi.
Reading A, AE and X
In and around D'Iberville, any A or V zone are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any year. With a lot near Long Beach, shaded Zone X is moderate risk, between the 1% and 0.2% annual chance floods; plain X, or C on older maps, is minimal risk.
Using it on a phone
Most viewers work in a phone browser, which helps when you're standing on land near Pass Christian, so load it before you lose signal. A printout of the tract near D'Iberville keeps working without signal.
Which office to call
Deeds, mortgages and recorded plats for land near Biloxi are with the Chancery Clerk, often with an online index. Questions about what you can build around Long Beach go to planning, building or health offices, depending on whether the land is inside town limits.
Low spots and local drainage
Small streams around Pass Christian may not have detailed mapping, so look for water marks and debris lines. Wet ground around Biloxi is a separate issue from flood zones; check the National Wetlands Inventory mapper for a first look.
How land is described here
Mississippi uses the Public Land Survey System, which means a tract near Long Beach 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 Long Beach odd-sized. Keep the legal description for land near Biloxi before you request a deed or survey.
Lining it up with the parcel map
If only part of a parcel near Biloxi is shaded, the location of the house or building pad decides a lot.
What a flood zone means for a buyer
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, which applies near D'Iberville as much as anywhere. Remodeling a house in a zone near D'Iberville can trigger elevation rules; call the permitting office early.
What to request from a seller
Request for any Elevation Certificate for the house near Biloxi; getting a quote early keeps the budget honest.
What the map can't tell you
Parcel lines are drawn for taxes, not surveyed, so the edge of a yard near Long Beach can sit some distance off the line on screen. In and around Long Beach, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Gulfport: common questions
Is AE a high-risk flood zone near Biloxi?
Both are high-risk zones, but only AE has a base flood elevation, so builders near Pass Christian design to that elevation.
Do I need to worry about flooding in Zone X for land near Long Beach?
X zones around Pass Christian are lower risk, not no risk; many owners buy coverage anyway.
Does the county parcel map show flood zones around Pass Christian?
In most cases, some county viewers include a FEMA flood layer; confirm a lot near Biloxi on FEMA's map either way.
What is a LOMA in Gulfport?
Short answer: you can ask FEMA for a LOMA if surveyed elevations show the building near Pass Christian is above the BFE; it starts with an elevation survey.
What's a legal description for land near D'Iberville?
Out toward Long Beach, deeds use lot and block, metes and bounds or survey descriptions; copy it for any survey or title request.
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.