Blog · October 14, 2026 · North Dakota
The Renville County Flood Zone Map: a North Dakota guide
FEMA's free flood maps and the Renville County parcel viewer, used together for property near Grano.
Main page: Renville County, ND GIS & Parcel Viewer (official map link, Renville County facts and neighboring maps).
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Land along Souris River and the flats outside Mohall are where a Renville County flood zone map lookup matters most. Here's how to read FEMA's map for a Renville County, ND property and match it to the parcel record.
Next: FEMA's search tool, the zone labels you'll see for Renville County, and how the parcel record confirms which tract you're on.
How to check the Renville County flood zone map
FEMA's official flood maps for Renville County are free at the FEMA Flood Map Service Center. Download the FIRM panel FEMA lists as effective for that part of Renville County. On acreage outside Tolley, FEMA's National Flood Hazard Layer viewer draws the zones over aerial imagery and reports the zone wherever you click near Tolley. Next, the Renville County Portico map confirms which Renville County parcel you're looking at. The Renville County record gives the parcel ID and legal description that an insurer or lender near Tolley may ask for.
Search Renville County parcels by owner, address or ID
The county's own public map is the Renville County Portico map, built on Sidwell's Portico platform, and it opens without an account for parcels in Sherwood and the rest of the county. Expect a disclaimer screen the first time you open the Renville County map; accept it and the parcels load. Use the search box for an address in Sherwood or a parcel number, or simply zoom in and click a tract close to Mohall. For a backup route to the map covering Mohall, our Renville County directory entry keeps the link current.
Getting oriented in Renville County, ND
From Mohall, the seat of the county, the map spreads out to Glenburn, Grano, Loraine, and Sherwood. Unincorporated communities in the county, including Greene, display up as small groups of parcels along the roads. Roughly 877 square miles of land and about 2,279 residents (2023 estimate) make up Renville County. Beyond the town lots in Mohall, expect big rural parcels across the county.
Deeds and plats behind the Renville County map
The parcel layer for Renville County points back to recorded deeds and plats, kept by the county's recording office (its title varies by state). A deed book and page or instrument number on the county record is the quickest route to request the document for a lot in Sherwood.
High, moderate and minimal risk in Renville County
For a lot in Tolley, the label matters more than the color: A and V zones are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any given year (the base or 100-year flood). Zone AE near Mohall means FEMA published a base flood elevation; plain Zone A means no detailed elevation was studied. Shaded Zone X around Tolley is moderate risk, between the 1-percent and 0.2-percent annual chance lines. Clear, unshaded X near Tolley is outside the 500-year floodplain.
Creeks, rivers and low ground in Renville County
Parcels touching Souris River deserve a FEMA check before anything else in Renville County. Don't assume a tract close to Mohall is clear because its road frontage sits high. A low spot on a Renville County tract outside any mapped zone can still flood; FEMA says moderate- and low-risk areas still carry risk.
Near the Renville County line
Renville County borders Bottineau County, Burke County, McHenry County, and Ward County, and each keeps its own parcel map and records. Every map bordering Renville County is listed on our North Dakota directory.
Insurance, permits and map changes
The zone lists up again when a loan on a house near Mohall is underwritten. If a barn or house outside Tolley falls inside an A or V zone and is financed by a regulated or federally insured lender, a flood policy becomes a loan condition, as long as Renville County or the town participates in the NFIP. Outside the A zones around Mohall, coverage is optional; pricing a policy for land near Mohall is still worth a call. When a Renville County homesite is on a rise inside a mapped zone, FEMA's LOMA process allows a review, generally backed by an elevation certificate from a surveyor who works in Renville County. Building or filling inside a mapped zone near Tolley commonly requires a permit and an elevation check, so call the county or the town office in Tolley before work starts.
Quick answers for Renville County
How do I challenge a flood zone for a lot in Loraine?
For a lot in Loraine, hire a surveyor for an elevation certificate, then file a LOMA request with FEMA.
Where can I see flood zones for land near Tolley?
Look it up at FEMA's Flood Map Service Center, then match the parcel lines in the Renville County Portico map; for land near Tolley, a zone starting with A or V is high risk.
My lot in Loraine lists Zone AE. What does that mean?
Yes, a tract close to Tolley in Zone AE is high risk: a 1-percent-annual-chance floodplain where FEMA lists a base flood elevation.
What is a base flood elevation for a Renville County property?
On the map covering Loraine, it's the projected water surface in the base flood, and it's printed in AE zones.
Is flood insurance required for a Zone X lot in Loraine?
FEMA does not require it for a Zone X lot in Loraine, but coverage is available and some lenders ask for it.
Who prepares an elevation certificate for a house in Loraine?
A licensed surveyor or engineer prepares it, and the building office serving Loraine may already have one on file for newer construction.
Open the official Renville County, ND parcel map Renville 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.