Blog · October 14, 2026 · North Dakota
Reading the Mercer County Flood Zone Map for a parcel
Flood zones are set by FEMA, and checking one near Golden Valley takes a few minutes.
Main page: Mercer County, ND GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before an offer near Knife River Indian Villages National Historic Site, check the Mercer County flood zone map: the zone on that map shapes insurance, building rules and resale. This Mercer County guide covers: the free FEMA tools, what each zone label means, when insurance is required and what a LOMA is.
The Mercer County flood zone map: start here
Out toward Knife River Indian Villages National Historic Site, start with FEMA's Flood Map Service Center: enter the street address, and choose the dynamic map. A tract near Lake Sakakawea without an address can still be found: zoom in from the nearest road and click inside the land.
Getting to the right map
Go first to the Mercer County parcel viewer; it includes every tax parcel around Pick City and Lake Sakakawea. When a rural tract has no street number, follow the nearest road on the aerial and click the parcel itself, for land near Pick City included. For a parcel near Lake Sakakawea, copy the parcel ID while you have it open; every records desk in the county will want it.
What to request from a seller
With a lot near Lake Sakakawea, ask the seller for any Elevation Certificate before closing; an insurance quote early avoids surprises.
Decoding the flood zone labels
Zone AE comes with a base flood elevation, and an unnumbered A zone has none; surveyors near Zap use that number. Closer to Hazen, shaded Zone X marks moderate flood hazard, roughly the 100- to 500-year range; unshaded X is minimal risk.
Getting answers from the right desk
If the acreage or value on a parcel near Hazen looks off belong with the Director of Tax Equalization, the office behind the parcel record. Building or septic questions for a lot near Golden Valley are for the local planning and health departments, town or county, depending on location.
Recorded documents worth pulling
If the land is near Golden Valley, the map is an index, not the title: recorded deeds, plats and easements for parcels in the county are kept by the County Recorder. Inherited tracts around Pick City can trace back through a long string of deeds, so a title company earns its fee before a purchase.
Using it on a phone
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Knife River Indian Villages National Historic Site, so load it before you lose signal. A screenshot of the parcel near Knife River Indian Villages National Historic Site with its ID helps when you meet an owner or agent.
Lining it up with the parcel map
If only part of a parcel near Lake Sakakawea is shaded, the location of the house or building pad decides a lot.
Money questions tied to the zone
For a structure inside an A or V zone and a federally regulated lender is involved, flood insurance is generally required where the community participates in the National Flood Insurance Program, which applies near Zap as much as anywhere. Building or adding on near Hazen in a mapped zone often needs a floodplain permit; ask the local floodplain administrator early.
Water near Missouri River
Creeks and ditches near Stanton aren't always studied in detail, so look for water marks and debris lines. Wet ground around Hazen is a separate issue from flood zones; check the National Wetlands Inventory mapper for a first look.
When a parcel crosses a boundary
Mercer County borders Dunn County, McLean County, Morton County, Oliver County, and Stark County; every one of them runs a separate parcel map. Acreage along the edge near Knife River Indian Villages National Historic Site can show up across two assessors' files, so open the adjacent map before you assume the acreage. For acreage around Zap, our state page lists each bordering county map across North Dakota.
Before you lean on the lines
On ground around Missouri River, acreage on the record is an estimate; only a licensed surveyor can set the real lines on the ground. Near Knife River Indian Villages National Historic Site, owner names and values update on a schedule, so a deed recorded last month can take weeks to appear.
Questions about the Mercer County flood zone map
When is flood insurance required around Lake Sakakawea?
Good question; lenders generally require it for buildings near Stanton in a Special Flood Hazard Area when the loan is federally regulated or insured; elsewhere it's optional.
How do I get a property removed from a flood zone in Mercer County?
It depends, but you can ask FEMA for a LOMA if surveyed elevations show the building near Missouri River is above the BFE; a surveyor's elevation data supports it.
Can a flood zone near Zap change?
Short answer: a new study can move a zone line near Pick City; check the effective date on the panel.
Do I need to worry about flooding in Zone X around Pick City?
Short answer: X zones around Pick City are lower risk, not no risk; FEMA notes that a large share of claims come from these areas.
Can I use the viewer in the field near Beulah?
If you're looking near Pick City, most viewers run in a mobile browser, though rural signal can drop.
Open the official Mercer County, ND parcel map See it 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.