Blog · October 14, 2026 · Nebraska
Using the Dawson County Flood Zone Map
The zone on FEMA's map affects insurance, building and resale near Farnam.
Main page: Dawson County, NE GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Buffalo, check the Dawson County flood zone map: the zone on that map shapes insurance, permits and resale. Covered here for Dawson County: locating a parcel on FEMA's map, decoding A, AE and X, and confirming the outline on the county map.
Checking the Dawson County flood zone map step by step
For a more interactive look, use the National Flood Hazard Layer viewer, which lets you click a spot and read its zone, for land near Willow Island included. A tract near Darr without an address can still be found: zoom in from the nearest road and click the spot.
The free map to start with
Go first to the Dawson County gWorks map; it maps each assessed parcel from Farnam to Overton. When a rural tract has no street number, pan along the nearest road until the lines appear, then click inside the one you want, whether the land is near Gothenburg or elsewhere in the county. If the land is near Lexington, a pop-up or side panel normally shows the owner of record, assessed acreage, the parcel number and sometimes recent sales.
Next door to the county for land near Sumner.
The county borders Buffalo County, Custer County, Frontier County, Gosper County, and Lincoln County; every one of them runs a separate parcel map. Acreage along the edge near Gothenburg may be split across two assessors' files, so look at the adjacent map before you assume the acreage. If you're looking near Sumner, the Platbookmapper state page lists each bordering county map across Nebraska.
Zones on the Dawson County flood zone map
Closer to Farnam, A and V zones are Special Flood Hazard Areas, which FEMA defines as a 1% annual chance of flooding. If you're looking near Buffalo, a shaded X area marks moderate flood hazard, between the 1% and 0.2% annual chance floods; plain X, or C on older maps, means minimal mapped risk.
Water near Josselyn
Low-lying fields near Farnam may not have detailed mapping, so look for water marks and debris lines. Wet ground around Cozad is a separate issue from flood zones; check the National Wetlands Inventory mapper for a first look.
Parcel lines plus flood zones
FEMA's map shows zones but not ownership, so open the Dawson County gWorks map next to see exactly which lot near Darr you're looking at.
Recorded documents worth pulling
For anything that matters, request the recorded deed through the Register of Deeds; the parcel line is a drawing of it, which applies near Eddyville as much as anywhere. Inherited tracts around Overton may go back through many deeds, so a title company earns its fee before a purchase.
A quick look at the area
Lexington holds the county offices, which is where the courthouse records live. You'll also find Cozad, Gothenburg, Eddyville, and Farnam, each with its own cluster of lots. About 24,085 people live in the county (Census estimate, 2023) spread over roughly 1,013 square miles around Gothenburg.
Insurance, lenders and building
For a structure inside an A or V zone and the loan is federally backed or regulated, flood insurance is generally required where the community participates in the National Flood Insurance Program, whether the land is near Willow Island or elsewhere in the county. Remodeling a house in a zone near Josselyn can trigger elevation rules; call the permitting office early.
A word on accuracy
Acreage on the record is an estimate; only a licensed surveyor sets the real boundary on land around Eddyville. For a tract near Buffalo, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Offices that can help
Questions about value or the owner field for land near Buffalo belong with the County Assessor, since that office keeps the assessment data. Zoning, permits and septic questions near Gothenburg need the planning or permitting office, and the answer depends on jurisdiction.
Questions to ask before you buy
For acreage around Lexington, ask the seller for any Elevation Certificate before closing; an insurance quote early keeps the budget honest.
Legal descriptions in Nebraska
Nebraska is laid out under the Public Land Survey System, which means a tract near Eddyville is described by section, township and range. A standard section is about one square mile, roughly 640 acres, and a township holds 36 of them, though real sections near Cozad vary in size. Keep the legal description for land near Sumner for any title or survey request.
Frequently asked
Do I need flood insurance around Gothenburg?
For a parcel near Overton, it's typically required only for structures in high-risk zones with federally backed loans; elsewhere it's optional.
What is a base flood elevation in Dawson County?
Out toward Josselyn, the BFE is printed in AE zones on FEMA's map, and an Elevation Certificate compares the building to it.
How often are flood maps updated near Buffalo?
Usually, a new study can move a zone line near Cozad, so look at the panel date.
Do I need to worry about flooding in Zone X around Josselyn?
X zones around Cozad are lower risk, not no risk; many owners near Sumner buy coverage anyway.
How is land described in Nebraska deeds in Dawson County?
For property near Willow Island, Deeds use lot and block, metes and bounds or survey descriptions; copy it for any survey or title request.
Open the official Dawson County, NE 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.