Blog · October 14, 2026 · Minnesota
Mower County Flood Zone Map in Minnesota
Look up any Mower County address on FEMA's flood map, read the zone, and match it to the parcel record for land around Elkton.
Main page: Mower County, MN GIS & Parcel Viewer (official map link, Mower County facts and neighboring maps).
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A Mower County flood zone map check belongs in the due diligence for any Mower County property, from a house lot in Brownsdale to farm ground near Austin. For any tract in Mower County, Minnesota, the answer affects insurance, permits and resale.
The sections below go from the FEMA search to the Mower County parcel record, then cover insurance, permits and map changes near Austin.
Look up the Mower County flood zone map step by step
Start at the FEMA Flood Map Service Center and enter the property address in Le Roy or anywhere else in the county. Download the FIRM panel FEMA lists as effective for that part of Mower County. If the PDF panel for Mower County is hard to read, the National Flood Hazard Layer viewer is easier to use, which displays how much of a Mower County parcel sits inside the zone. Then open the Mower County ArcGIS parcel map for Mower County to confirm the parcel near Le Roy. If the Mower County viewer has a floodplain layer, treat it as a convenience copy and confirm on FEMA's map.
Finding the tract on the Mower County map
For land around Adams, open the Mower County ArcGIS parcel map (an Esri ArcGIS web map); it's the map Mower County itself publishes. Click any Mower County parcel near Brownsdale to open its record: owner, parcel ID and assessed acreage are generally listed. If the official address for the Mower County, MN map ever changes, our directory page carries the current link for Brownsdale and the rest of the county.
Reading the zones on a Mower County flood map
Any Mower County parcel shaded as Zone A, AE, AH or AO sits in what FEMA calls a Special Flood Hazard Area, meaning FEMA estimates a 1-percent annual chance of flooding. Zone AE near Adams means FEMA published a base flood elevation; plain Zone A means no detailed elevation was studied. If a Mower County parcel displays shaded Zone X, it sits in the moderate band between the 100-year and 500-year floods. Unshaded Zone X near Adams is minimal risk.
Creeks, rivers and low ground in Mower County
In Mower County, look closest at tracts along Cedar River and Upper Iowa River. Don't assume a piece of ground near Adams is clear because its road frontage sits high. A low spot on a Mower County tract outside any mapped zone, so treat an unmapped channel as a reason to ask questions, not proof the ground stays dry.
Seller questions about flood history
For a house near Elkton, 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 Austin and get a quote using the zone and the county parcel address.
Flood insurance and building rules in Mower County
Insurance is the practical stake for a Mower County buyer. If a barn or house outside Le Roy sits in a Special Flood Hazard Area and carries a federally backed mortgage, flood insurance is mandatory, as long as Mower County or the town participates in the NFIP. Outside the A zones around Adams, coverage is optional, though a lender in Minnesota can still ask for it. When a Mower County homesite is on a rise inside a mapped zone, the landowner can ask FEMA for a Letter of Map Amendment (LOMA), generally backed by an elevation certificate from a surveyor who works in Mower County. Building or filling inside a mapped zone near Le Roy has to meet local floodplain rules, so call the county or the town office in Le Roy before work starts.
Mower County, MN: common questions
What if FEMA's map is wrong about my house near Grand Meadow?
An owner near Grand Meadow can request a Letter of Map Amendment from FEMA with elevation data, generally from a licensed land surveyor.
Who prepares an elevation certificate for a house in Dexter?
A licensed land surveyor or engineer prepares it, and the building office serving Dexter may already have one on file for newer construction.
Can I build in a flood zone in Mower County?
Often, but local floodplain rules apply; ask the county or town building office in Dexter before you buy.
How can I check a Mower County, MN flood zone?
Look it up at FEMA's Flood Map Service Center, then match the parcel lines in the Mower County ArcGIS parcel map; for land near Grand Meadow, a zone starting with A or V is high risk.
What does 100-year flood mean for Mower County land?
No, ground around Dexter mapped that way has a 1-percent chance of flooding every year, not a once-a-century schedule.
What does Zone AE mean on a Mower County flood map?
Yes, a piece of ground near Grand Meadow in Zone AE is high risk: a 1-percent-annual-chance floodplain where FEMA lists a base flood elevation.
Open the official Mower County, MN parcel map Mower 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.