Blog · October 14, 2026 · Wisconsin
Reading the River Falls Flood Zone Map for a parcel
Flood zones are set by FEMA, and checking one near Baldwin takes a few minutes.
Main page: St. Croix County, WI GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Weighing a property around Baldwin? The River Falls flood zone map tells you whether FEMA puts it in a high-risk zone, and it costs nothing to check. Covered here for River Falls: finding the address on FEMA's map, decoding A, AE and X, and pairing it with the St. Croix County Beacon site.
Getting started with the River Falls flood zone map
Start with FEMA's Flood Map Service Center: search an address around Baldwin, then open the map view for that panel. Vacant ground around Somerset is still easy to locate: zoom in from the nearest road and click the spot.
Where the parcel data lives
Go first to the St. Croix County Beacon site; it includes each tax parcel in the county, Roberts included. Without an address in hand, pan along the nearest road until the lines appear, then click inside the one you want, whether the land is near Roberts or elsewhere in the county. In and around North Hudson, write down the parcel ID from that panel; every office in the county asks for it first.
Before you lean on the lines
The acreage figure is an assessed number; just a licensed surveyor can set the real boundary for a parcel near North Hudson. For acreage around Hudson, records update in batches, so a deed recorded last month might lag behind.
River Falls, WI: the basics
River Falls lies within St. Croix County, Wisconsin, so its parcels are on the county's map. For property near Baldwin, the municipality handles things like zoning, permits and utilities within town limits, but the county runs assessment and recording. Acreage past the city limits toward Somerset usually follows county rules rather than the town's.
Decoding the flood zone labels
Zone AE includes a base flood elevation (BFE), which plain A zones lack; builders around North Hudson design to it. Out toward Somerset, minimal risk is not no risk: FEMA notes that many claims come from moderate- and low-risk areas.
Neighboring parcel maps
St. Croix County touches Washington County, MN, Barron County, Dunn County, Pierce County, and Polk County; every one of them runs a separate parcel map. A tract near the line by Hammond can be split in two county records, so open the neighboring map too. For land near North Hudson, our state page links every neighboring county map across Wisconsin.
Offices that can help
Questions about value or the owner field for land near North Hudson go to the county real property listing office, since that office keeps the assessment data. Questions about what you can build around North Hudson go to planning, building or health offices, and the answer depends on jurisdiction.
Water near Baldwin
Small streams around Baldwin may not have detailed mapping, so ask neighbors about past flooding. Wetlands near North Hudson can limit building even outside a flood zone; the National Wetlands Inventory mapper shows mapped wetlands.
St. Croix County in a few facts
Hudson serves as the county seat, which is where the courthouse records live. You'll also find Roberts, North Hudson, and Hammond, each with its own cluster of lots. About 96,763 people live in St. Croix County (Census estimate, 2023) on some 722 square miles. St. Croix County was formed in 1849, and some chains of title near Somerset are long.
How land is described here
Wisconsin uses the Public Land Survey System, which means a tract near Roberts is described by section, township and range. Each section is nominally a mile square, about 640 acres, and a township holds 36 of them, though corrections make some sections near Somerset odd-sized. Keep the legal description for land near North Hudson when you talk to a surveyor.
Use the county map alongside FEMA
FEMA's map shows zones but not ownership, so check the St. Croix County Beacon site too for the outline of the tract near Roberts.
A short flood checklist
Request for any Elevation Certificate for the house near Baldwin; an insurance quote early keeps the budget honest.
Lenders and permits
If the land is near North Hudson, an Elevation Certificate from a surveyor helps: it compares the building to the BFE. New construction in a floodplain near Baldwin usually means extra permit review; ask the local floodplain administrator before you plan.
Where the recorded documents are
The map is an index, not the title: deeds, subdivision plats and easements for land near Hammond are filed with the Register of Deeds. With a lot near North Hudson, have ready the book and page from the tax record to skip a name search.
Quick answers
Where can I see the River Falls flood zone map for free?
Usually, look up the spot near Roberts in FEMA's National Flood Hazard Layer viewer; no account is needed.
Why did my flood zone near Roberts change?
For most people, a new study can move a zone line near Somerset, so look at the panel date.
Does the county parcel map show flood zones in River Falls?
A flood layer may appear in the county Beacon site layer list; confirm a lot near Hudson on FEMA's map either way.
What is a base flood elevation in River Falls?
Usually, a BFE near Roberts tells builders how high the lowest floor should be; surveyors use it often.
Where do I find the parcel number for land near Hammond?
It's the number the county real property listing office uses to track a tract near North Hudson; copy it before you call anyone.
Open the official St. Croix 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.