Blog · October 14, 2026 · Wisconsin
Kewaunee County Flood Zone Map: checking a property's flood zone
The zone on FEMA's map affects insurance, building and resale near Casco.
Main page: Kewaunee County, WI GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Bolt, check the Kewaunee County flood zone map: a mapped flood zone changes insurance, building rules and resale. This Kewaunee County guide covers: finding the address on FEMA's map, reading the zone codes, and confirming the outline on the county map.
Getting started with the Kewaunee County flood zone map
If you'd rather pan and zoom, open the National Flood Hazard Layer viewer, which draws the zones over aerial imagery, whether the land is near Bay View or elsewhere in the county. Vacant ground around Casco can still be found: search the nearest road and click the spot.
The viewer Kewaunee County publishes
Parcels around Ahnapee appear on the Kewaunee County parcel viewer, free to use and open without a login. Around Dyckesville, enter a street address, an owner's name or a parcel number, and the viewer zooms to the match. Closer to Luxemburg, save the parcel ID from that panel; every clerk in the county will want it.
Neighboring parcel maps
The county touches Benzie County, MI, Manistee County, MI, Brown County, Door County, and Manitowoc County, and each of those keeps its own parcel map around Franklin. A tract near the line by Dyckesville can be split in two county records, so open the neighboring map before you assume the acreage. For property near Algoma, our state page lists every bordering county map across Wisconsin.
Zones on the Kewaunee County flood zone map
For a parcel near Dyckesville, zones beginning with A or V mark the Special Flood Hazard Area, which FEMA defines as a 1% annual chance of flooding. Near Birchwood, shaded Zone X is moderate risk, between the 1% and 0.2% annual chance floods; plain X, or C on older maps, is minimal risk.
What to request from a seller
Out toward Dyckesville, ask the listing agent whether the home has flooded before closing; getting a quote early avoids surprises.
Where the recorded documents are
If the land is near Algoma, the map is an index, not the title: recorded deeds, plats and easements for parcels in the county are filed with the Register of Deeds. Long-held tracts around Dyckesville can trace back through a long string of deeds, and a title company earns its fee on a real sale.
Taking the map into the field
The parcel map usually runs in a mobile browser, which helps when you're standing on land near Casco, but coverage can be spotty out of town. A screenshot of the parcel near Bolt with its ID helps when you meet an owner or agent.
Who handles what
For assessment questions about property around Birchwood are handled by the county real property listing office, since that office keeps the assessment data. Building or septic questions for a lot near Dyckesville are for the local planning and health departments, town or county, depending on location.
Before you lean on the lines
Tax maps are drawn for assessment, not surveyed, so a fence near Dyckesville can sit several feet off the line on screen. For a tract near Dyckesville, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Parcel lines plus flood zones
If only part of a parcel near Luxemburg is shaded, the structure's footprint is the key question.
Places you'll see on the map
Kewaunee is the county seat, which is where the courthouse records live. Other places on the map include Algoma, Casco, Luxemburg, and Ahnapee, each with its own cluster of lots. Around 20,690 people call Kewaunee County home (Census estimate, 2023) spread over some 342 square miles. The county was organized in 1859, so old deeds can run back a long way, especially near Bay View.
Beyond the mapped zones
Small streams around Alaska may not have detailed mapping, so walk the land after rain. Wet ground around Casco is a separate issue from flood zones; check the National Wetlands Inventory mapper for a first look.
Lenders and permits
For a structure inside an A or V zone and a federally regulated lender is involved, flood insurance is generally required in communities in the NFIP, which applies near Bay View as much as anywhere. Building or adding on near Dyckesville in a mapped zone usually means extra permit review; ask the local floodplain administrator early.
Frequently asked
How do I get a property removed from a flood zone around Franklin?
Good question; FEMA's LOMA process is the usual route when a building near Casco sits above the base flood elevation; it starts with an elevation survey.
Is AE a high-risk flood zone near Franklin?
On ground around Ahnapee, an AE zone has a 1% annual chance of flooding and a base flood elevation; unnumbered A zones don't list one.
How often are flood maps updated in Kewaunee County?
In most cases, zones near Alaska can shift when FEMA updates a panel; check the effective date on the panel.
How do I check the flood zone for an address in Kewaunee County?
FEMA's free map shows the zone for any spot near Bay View; then confirm the parcel on the county viewer.
Is there a way to export the map near Bay View?
Closer to Casco, some viewers offer PDF export; downloads of raw data vary by county.
Open the official Kewaunee County, WI 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.