Blog · October 14, 2026 · Minnesota
Using the Cook County Flood Zone Map
The zone on FEMA's map affects insurance, building and resale near Cascade River State Park.
Main page: Cook County, MN GIS & Parcel Viewer (official map link, county facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
Before you buy or build near Grand Portage, look at the Cook County flood zone map: a mapped flood zone changes insurance, building rules and resale. In this county guide: finding the address on FEMA's map, reading the zone codes, and pairing it with the county Beacon site, at least around Croftville.
Where the Cook County flood zone map lives
For parcel-by-parcel detail, try the National Flood Hazard Layer viewer, where zone shading sits over a photo base, which applies near Grand Portage as much as anywhere. Vacant ground around Croftville is still easy to locate: search the nearest road and click inside the land.
Getting to the right map
Go first to the Cook County Beacon site; it covers every assessed parcel around Lutsen and Mineral Center. If the land is near Mineral Center, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. For a tract near Mineral Center, copy the parcel ID while you have it open; each records desk in the county asks for it first.
Cook County in a few facts
Grand Marais is the county seat, home to the main records offices. Other places on the map include Lutsen, Croftville, Grand Portage, and Hovland, each with its own cluster of lots. Around 5,639 people call Cook County home (Census estimate, 2023) spread over some 1,453 square miles. The county was formed in 1874, which matters when you trace an old farm's title, at least around Grand Marais. Landmarks such as Lake Abita and Cascade River State Park are easy to spot when you zoom out.
Reading A, AE and X
Out toward Grand Portage National Monument, A and V zones mark the Special Flood Hazard Area, meaning a 1% or greater chance of flooding each year. For a tract near Grand Portage National Monument, minimal risk is not no risk: FEMA notes that many claims come from moderate- and low-risk areas.
Low spots and local drainage
Small streams around Grand Marais aren't always studied in detail, so ask neighbors about past flooding. Wet ground around Grand Portage is a separate issue from flood zones; the National Wetlands Inventory mapper shows mapped wetlands.
Backing up the map with records
Before you sign anything, pull the recorded deed through the County Recorder; the parcel line is a drawing of it, whether the land is near Mineral Center or elsewhere in the county. For a parcel near Grand Portage, bring the document number listed on the parcel record to skip a name search.
A short flood checklist
Near Cascade River State Park, ask the listing agent about past flood claims before closing; getting a quote early keeps the budget honest.
Parcel lines plus flood zones
FEMA doesn't draw property lines, so pair it with the Cook County Beacon site for the outline of the tract near Croftville.
Who handles what
Questions about value or the owner field for land near Lutsen belong with the County Assessor, the office behind the parcel record. Zoning, permits and septic questions near Cascade River State Park go to planning, building or health offices, depending on whether the land is inside town limits.
Before you lean on the lines
In and around Grand Portage, acreage on the record is an estimate; just a licensed surveyor establishes the real lines on the ground. In and around Grand Marais, owner names and values update on a schedule, so a deed recorded last month may not show yet.
Money questions tied to the zone
If a building sits in a Special Flood Hazard Area and the loan is federally backed or regulated, flood insurance is generally required in communities in the NFIP, whether the land is near Grand Portage National Monument or elsewhere in the county. Building or adding on near Grand Portage National Monument in a mapped zone usually means extra permit review; call the permitting office before you plan.
When a parcel crosses a boundary
The county touches Keweenaw County, MI, Ontonagon County, MI, Lake County, and Ashland County, WI, and each of those keeps its own parcel map, at least around Croftville. Acreage along the edge near Grand Portage can be split in two county records, so look at the adjacent map as well. For acreage around Lake Abita, our state page lists each bordering county map across Minnesota.
Cook County: common questions
How often are flood maps updated in Cook County?
For a tract near Cascade River State Park, FEMA revises flood maps panel by panel as new studies finish; your community is notified before changes take effect.
What is a base flood elevation around Croftville?
Out toward Grand Portage National Monument, the BFE is printed in AE zones on FEMA's map, and an Elevation Certificate compares the building to it.
Do I need flood insurance in Cook County?
Short answer: lenders generally require it for buildings near Lake Abita in a Special Flood Hazard Area when the loan is federally regulated or insured; elsewhere it's optional.
Do I need to worry about flooding in Zone X for land near Cascade River State Park?
Near Croftville, shaded X is moderate risk and unshaded X is minimal risk; FEMA notes that a large share of claims come from these areas.
Is there a way to export the map for land near Grand Portage National Monument?
For a tract near Croftville, some viewers offer PDF export; downloads of raw data vary by county.
Open the official Cook County, MN 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.