Blog · October 14, 2026 · North Dakota
The Mountrail County Flood Zone Map: a North Dakota guide
Look up any Mountrail County address on FEMA's flood map, read the zone, and match it to the parcel record for land around Plaza.
Main page: Mountrail County, ND GIS & Parcel Viewer (official map link, Mountrail County facts and neighboring maps).
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A Mountrail County flood zone map check belongs in the due diligence for any Mountrail County property, from a house lot in White Earth to farm ground near Plaza. Here's how to read FEMA's map for a Mountrail County, ND property and match it to the parcel record.
The sections below go from the FEMA search to the Mountrail County parcel record, then cover insurance, permits and map changes near Plaza.
Where to see the official Mountrail County flood zone map
The authoritative source for a Mountrail County flood zone map is FEMA, so begin at the FEMA Flood Map Service Center. Download the FIRM panel FEMA lists as effective for that part of Mountrail County. For an interactive view of the county, the National Flood Hazard Layer viewer is easier to use and reports the zone wherever you click near Ross. Next, the Mountrail County Portico map confirms which Mountrail County parcel you're looking at. Laying the county parcel outline beside the FEMA shading shows whether a homesite near Parshall sits above or inside the zone.
The county map you'll pair it with
For land around Palermo, open the Mountrail County Portico map (Sidwell's Portico platform); it's the map Mountrail County itself publishes. The Mountrail County site shows a disclaimer before the map; click through to reach parcels near Ross. Click any Mountrail County parcel near Ross to open its record: owner, parcel ID and assessed acreage are most commonly listed. For a backup route to the map covering Palermo, our Mountrail County directory entry keeps the link current.
Tracts that cross the Mountrail County line
A farm near the county line can carry separate records in Burke County, Dunn County, and McKenzie County as well. Our North Dakota page links each map neighboring Mountrail County.
Reading the zones on a Mountrail County flood map
On the FIRM covering Mountrail 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 Ross uses the base flood elevation printed for AE zones; unnumbered A zones don't have one. Land near Parshall in shaded X (Zone B on older maps) is moderate risk, between the 1-percent and 0.2-percent annual chance lines. Unshaded X (or C) on the Mountrail County panel means minimal risk.
Low ground and small streams around Ross
Small streams and ditches near Ross may not be studied in detail, which is why it's worth walking the ground after a heavy rain.
Questions to ask before buying in Mountrail County
Request any past flood claims history for a Mountrail County property before closing; it tells you more than the map alone. Quotes for land near Van Hook depend on the zone and the building's elevation, so bring both to the agent.
What a flood zone means for a Mountrail County buyer
Insurance is the practical stake for a Mountrail County buyer. When a Mountrail County home is mapped in a high-risk zone and secures a loan from a federally regulated or insured lender, the lender must require flood coverage, as long as Mountrail County or the town participates in the NFIP. For a Mountrail County home in shaded or unshaded X, federal rules don't require a policy, although a lender in North Dakota can still ask for it. When a Mountrail County homesite is on a rise inside a mapped zone, FEMA's LOMA process allows a review, supported by elevation data from a professional surveyor. Building or filling inside a mapped zone near Ross most commonly needs a floodplain permit, and the building office serving Parshall explains the steps.
Quick answers for Mountrail County
Is my Plaza address in a flood zone?
Look it up at FEMA's Flood Map Service Center, then match the parcel lines in the Mountrail County Portico map; for land near Palermo, a zone starting with A or V is high risk.
Who prepares an elevation certificate for a house in Plaza?
Hire a professional surveyor or engineer who works in Mountrail County; ask the local floodplain office first in case one exists.
What does BFE mean on the flood map for Plaza?
On the map covering Plaza, the base flood elevation marks how high the 100-year flood is expected to rise; elevation certificates in Mountrail County are measured against it.
How do I challenge a flood zone for a lot in Plaza?
FEMA reviews requests such as a LOMA for Mountrail County properties; start with an elevation certificate.
Can I build in a flood zone in Mountrail County?
Often, but local floodplain rules apply; ask the county or town building office in Plaza well before you buy.
Is there a floodplain layer in the Mountrail County Portico map?
Check the layer list in the Mountrail County Portico map; if Mountrail County includes a floodplain layer, confirm the zone on FEMA's map anyway.
Open the official Mountrail County, ND parcel map Mountrail 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.