Blog · October 14, 2026 · Arkansas
The Prairie County Flood Zone Map: an Arkansas guide
FEMA's free flood maps and the Prairie County parcel viewer, used together for property near Des Arc.
Main page: Prairie County, AR GIS & Parcel Viewer (official map link, Prairie County facts and neighboring maps).
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The Prairie County flood zone map question tends to arrive at a bad moment: a lender's letter, an insurance quote, or a permit counter in DeValls Bluff. FEMA's free Flood Map Service Center and the Prairie County parcel viewer answer it together.
Next: FEMA's search tool, the zone labels you'll see for Prairie County, and how the parcel record confirms which tract you're on.
Where to see the official Prairie County flood zone map
FEMA's official flood maps for Prairie County are free at the FEMA Flood Map Service Center. If a tract around Ulm has no street number yet, search the nearest road and pan to it. For an irregular lot near Ulm, FEMA's National Flood Hazard Layer viewer draws the zones over aerial imagery, which displays how much of a county parcel sits inside the zone. Switch to the Prairie County ArcGIS parcel map and locate the same tract around Ulm. The Prairie County record gives the parcel number and legal description that an insurer or lender near Fredonia may ask for.
Opening the Prairie County parcel viewer
Prairie County publishes its parcels on the Prairie County ArcGIS parcel map, which runs on an Esri ArcGIS web map, free to use for a lot in Des Arc or a tract around Fredonia. Use the search box for an address in Des Arc or a parcel number, or simply zoom in and click a tract around Fredonia. If the official address for the Prairie County, AR map ever changes, our directory page carries the current link for Des Arc and the rest of the county.
What the flood zone letters mean
On the FIRM covering Prairie County, zones that start with A or V are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any given year (the base or 100-year flood). A surveyor working near Fredonia uses the base flood elevation printed for AE zones; unnumbered A zones don't have one. If a Prairie County parcel displays shaded Zone X, it sits in the moderate band between the 100-year and 500-year floods. Unshaded X (or C) on the Prairie County panel means minimal risk.
Creeks, rivers and low ground in Prairie County
Parcels touching Mississippi River deserve a FEMA check before anything else in Prairie County. Don't assume a tract around Ulm is clear since its road frontage sits high. Small streams and ditches near Fredonia may not be studied in detail can still flood; FEMA says moderate- and low-risk areas still carry risk.
Questions to ask before buying in Prairie County
For a house near DeValls Bluff, ask the seller for any elevation certificate on file and the current flood insurance declarations page. Then call an insurance agent who writes policies around Hazen and get a quote using the zone and the county parcel address.
When the map affects a deal
Lenders watch the zone closely on Prairie County properties. When a structure near Ulm falls inside an A or V zone and carries a federally backed mortgage, the lender must require flood coverage under the Flood Disaster Protection Act, wherever the community joins the NFIP. For a Prairie County home in shaded or unshaded X, coverage is optional, although a lender in Arkansas can still ask for it. When a Prairie County homesite is on a rise inside a mapped zone, FEMA's LOMA process allows a review, typically backed by an elevation certificate from a surveyor who works in Prairie County. New construction in a Prairie County Special Flood Hazard Area frequently requires a permit and an elevation check, and the building office serving Ulm explains the steps.
Quick answers for Prairie County
What is a base flood elevation for a Prairie County property?
For a Prairie County property in Zone AE, the BFE is the height floodwater is expected to reach in the 1-percent-annual-chance flood; elevation certificates in Prairie County are measured against it.
Is there a floodplain layer in the Prairie County ArcGIS parcel map?
Check the layer list in the Prairie County ArcGIS parcel map; if Prairie County includes a floodplain layer, confirm the zone on FEMA's map anyway.
What if FEMA's map is wrong about my house near Fredonia?
An owner near Fredonia can request a Letter of Map Amendment from FEMA with elevation data, typically from a licensed land surveyor.
Where can I see flood zones for land near Fredonia?
Search the Des Arc address on FEMA's Flood Map Service Center; the effective panel displays the zone, and the county parcel map confirms the tract.
Can I build in a flood zone in Prairie County?
Building in a Special Flood Hazard Area near Des Arc typically needs a floodplain permit and may require elevating the structure, so check with the county floodplain administrator.
What does 100-year flood mean for Prairie County land?
No; land near Fredonia in the 100-year floodplain has a 1-percent chance of flooding every year, and two floods in one decade near Des Arc are possible.
Open the official Prairie County, AR parcel map Prairie County 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.