Blog · October 14, 2026 · Florida
Martin County Flood Zone Map: checking a property's flood zone
Flood zones are set by FEMA, and checking one near Jupiter Island takes a few minutes.
Main page: Martin County, FL GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before an offer near North River Shores, look at the Martin County flood zone map: the zone on that map shapes insurance, permits and resale. In this Martin County guide: the free FEMA tools, what each zone label means, lender insurance rules and what a LOMA is.
Checking the Martin County flood zone map step by step
For parcel-by-parcel detail, open the National Flood Hazard Layer viewer, where zone shading sits over a photo base, which applies near Ocean Breeze as much as anywhere. A tract near Hobe Sound National Wildlife Refuge without an address is still easy to locate: zoom in from US Route 98 then click the parcel area.
Pulling up a parcel
Begin with the Martin County parcel viewer; it maps each tax parcel around Sewall's Point and Hobe Sound National Wildlife Refuge. When a rural tract has no street number, follow US Route 98 on the aerial and click the parcel itself, and that holds around Jensen Beach too. On ground around North River Shores, copy the parcel ID before closing the panel; every clerk in the county will want it.
Beyond the mapped zones
Creeks and ditches near Indiantown aren't always studied in detail, so walk the land after rain. Marshy spots near Hobe Sound can limit building too; check the National Wetlands Inventory mapper for a first look.
Decoding the flood zone labels
An AE label comes with a base flood elevation, while plain Zone A does not; surveyors near Jupiter Island use that number. Out toward Port Salerno, shaded Zone X is moderate risk, roughly the 100- to 500-year range; unshaded X is minimal risk.
Places you'll see on the map
Stuart serves as the county seat, home to the main records offices. Smaller places on the map include Jupiter Island, Ocean Breeze, Sewall's Point, and Indiantown, where town lots give way to larger tracts. About 163,315 people call Martin County home (Census Bureau estimate, 2023) on some 544 square miles. Martin County dates to 1925, which matters when you trace an old farm's title. Features like Hobe Sound National Wildlife Refuge help you orient on the aerial around Port Salerno.
Sections, lots and bearings
Florida uses the Public Land Survey System, so deeds around Jupiter Island reference sections and townships. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though sections near Sewall's Point can be irregular. Write down the legal description for the tract near Ocean Breeze for any title or survey request.
Deeds, plats and who keeps them
The map is an index, not the title: recorded deeds, plats and easements for land near Palm City are filed with the Clerk of the Circuit Court (official records). Near Hobe Sound, bring the document number from the tax record so staff can find the deed fast.
Offices that can help
Anything recorded against property around Ocean Breeze sit in the index kept by the Clerk of the Circuit Court (official records), often with an online index. Zoning, permits and septic questions near Indiantown need the planning or permitting office, and the answer depends on jurisdiction.
Use the county map alongside FEMA
Where a floodplain cuts across acreage near Sewall's Point, the structure's footprint is the key question.
A word on accuracy
In and around Ocean Breeze, the acreage figure is a tax-roll number; just a licensed surveyor establishes the real boundary on the ground. If you're looking near Sewall's Point, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Questions to ask before you buy
If you're looking near Jensen Beach, ask the listing agent about past flood claims before closing; an insurance quote early keeps the budget honest.
Insurance, lenders and building
If a building sits in a Special Flood Hazard Area and the loan is federally backed or regulated, mandatory purchase rules apply in communities in the NFIP, whether the land is near North River Shores or elsewhere in the county. Building or adding on near Jensen Beach in a mapped zone usually means extra permit review; call the permitting office early.
Land on the county line
Martin County touches Glades County, Hendry County, Okeechobee County, Palm Beach County, and St. Lucie County; every one of them runs a separate parcel map. Acreage along the edge near North River Shores may show up in two county records, so open the adjacent map too. In and around Indiantown, our state page links every bordering county map across Florida.
Questions about the Martin County flood zone map
What does Zone X mean near Hobe Sound?
Usually, shaded X is moderate risk and unshaded X is minimal risk; many owners near Hobe Sound National Wildlife Refuge buy coverage anyway.
What is a base flood elevation in Martin County?
Generally, the BFE is printed in AE zones on FEMA's map; surveyors near Jensen Beach use it often.
What is the difference between Zone A and AE near Hobe Sound National Wildlife Refuge?
In and around Hobe Sound, an AE zone has a 1% annual chance of flooding and a base flood elevation; unnumbered A zones don't list one.
How often are flood maps updated around North River Shores?
A new study can move a zone line near Palm City; your community is notified before changes take effect.
How is land described in Florida deeds around Ocean Breeze?
If you're looking near Hobe Sound, it's the formal description of the land in the deed, and the parcel record often summarizes it.
Open the official Martin County, FL 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.