Blog · October 14, 2026 · Arkansas
The Union County Flood Zone Map: an Arkansas guide
FEMA's free flood maps and the Union County parcel viewer, used together for property near Strong.
Main page: Union County, AR GIS & Parcel Viewer (official map link, Union County facts and neighboring maps).
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Before you buy a house in Smackover, add on to a barn near Junction City, or price a lot along Ouachita River, check the Union County flood zone map. Here's how to read FEMA's map for a Union County, AR property and match it to the parcel record.
Below are the FEMA links, a plain reading of the zone labels, notes on where water shapes land around Smackover, and short answers to common questions.
How to check the Union County flood zone map
Start at the FEMA Flood Map Service Center and enter the property address in Norphlet or anywhere else in the county. Download the FIRM panel FEMA lists as effective for that part of Union County. If the PDF panel for Union County is hard to read, try FEMA's National Flood Hazard Layer viewer, which shows how much of a Union County parcel sits inside the zone. Next, the Union County ArcGIS parcel map confirms which Union County parcel you're looking at. The Union County record gives the parcel identifier and legal description that an insurer or lender near Norphlet may ask for.
Finding the tract on the Union County map
Union County publishes its parcels on the Union County ArcGIS parcel map, which runs on an Esri ArcGIS web map, free to use for a lot in Calion or a tract near Strong. Click any Union County parcel near Calion to open its record: owner, parcel ID and assessed acreage are typically listed. Bookmark our Union County page too; it tracks the official Arkansas link if it moves and lists the maps around Calion.
Reading the zones on a Union County flood map
For a lot in Norphlet, the label matters more than the color: A and V zones are Special Flood Hazard Areas, meaning FEMA estimates a 1-percent annual chance of flooding. Where a Union County tract shows Zone AE, there's a base flood elevation to compare a building against; in Zone A there isn't one. If a Union County parcel shows shaded Zone X, it is moderate risk, between the 1-percent and 0.2-percent annual chance lines. Unshaded Zone X near El Dorado is minimal risk.
Waterfront parcels near El Dorado
The Union County landscape includes Ouachita River, and that's where flood questions cluster. Lines on those Union County parcels commonly follow the water, so part of the tract can be mapped as high risk. A low spot on a Union County tract outside any mapped zone, which is why it is worth walking the ground after a heavy rain.
Seller questions about flood history
Buying near Smackover? Ask the seller if the house has flood insurance now and if it has ever had a claim; an agent in Arkansas can also request the flood disclosure if the state requires one. Then call an insurance agent who writes policies around Smackover and get a quote using the zone and the county parcel address.
When the map affects a deal
Lenders watch the zone closely on Union County properties. Where a building in Norphlet is mapped in a high-risk zone and is financed by a regulated or federally insured lender, a flood policy becomes a loan condition; that applies where the local government around El Dorado is in the National Flood Insurance Program. In Zone X near Norphlet, insurance is a choice, not a mandate; pricing a policy for land near El Dorado is still worth a call. When a Union County homesite is on a rise inside a mapped zone, the landowner can ask FEMA for a Letter of Map Amendment (LOMA), typically backed by an elevation certificate from a surveyor who works in Union County. Placing fill on low ground near Norphlet commonly requires a permit and an elevation check, so call the county or the town office in Norphlet before work starts.
Quick answers for Union County
Who prepares an elevation certificate for a house in Huttig?
A licensed surveyor or engineer prepares it, and the building office serving Huttig may already have one on file for newer construction.
How can I check a Union County, AR flood zone?
FEMA's free map service covers Union County: enter the address or pan to the tract near El Dorado, then note the zone label.
Is Zone AE near El Dorado high risk?
Zone AE on a lot in Huttig is a mapped 100-year floodplain with a base flood elevation, so mandatory insurance rules apply to federally backed mortgages.
What does BFE mean on the flood map for Huttig?
Near El Dorado, it is the projected water surface in the base flood, and it is printed in AE zones.
How do I challenge a flood zone for a lot in Huttig?
An owner near El Dorado can request a Letter of Map Amendment from FEMA with elevation data, typically from a licensed surveyor.
Open the official Union County, AR parcel map Union 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.