Blog · October 14, 2026 · Wisconsin
Using the St. Croix County Flood Zone Map
Flood zones are set by FEMA, and checking one near New Richmond 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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Before you buy or build near Glenwood City, pull up the St. Croix County flood zone map: the zone on that map shapes insurance, permits 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 around Emerald.
Where the St. Croix County flood zone map lives
For parcel-by-parcel detail, open the National Flood Hazard Layer viewer, which draws the zones over aerial imagery, whether the land is near Deer Park or elsewhere in the county. A tract near Hammond without an address can still be found: zoom in from the nearest road then click the parcel area.
Where the parcel data lives
Your first stop is the St. Croix County Beacon site; it maps every assessed parcel from Centerville to New Richmond. If you only know roughly where the land is, follow the nearest road on the aerial until the lines appear, then click inside the one you want, which applies near River Falls as much as anywhere. On ground around Hammond, copy the parcel ID from that panel; each clerk in the county will want it.
What the map can't tell you
For acreage around River Falls, listed acreage is an estimate; only a licensed surveyor sets the real corners on the ground. For a parcel near Centerville, owner names and values update on a schedule, so a deed recorded last month can take weeks to appear.
What the zone letters mean
If you're looking near New Richmond, any A or V zone are Special Flood Hazard Areas, meaning a 1% or greater chance of flooding each year. For a parcel near Burkhardt, minimal risk is not no risk: according to FEMA, floods happen outside mapped zones too.
Use the county map alongside FEMA
FEMA's map shows zones but not ownership, so pair it with the St. Croix County Beacon site to confirm you have the right parcel near New Richmond.
Neighboring parcel maps
The county borders Washington County, MN, Barron County, Dunn County, Pierce County, and Polk County; every one of them runs a separate parcel map, at least around Centerville. Acreage along the edge near Boardman can be split across two assessors' files, so check the neighboring map as well. Closer to Baldwin, our state page links every bordering county map for Wisconsin.
Recorded documents worth pulling
With a lot near Boardman, the map is an index, not the title: deeds, plats and easements for parcels in the county are kept by the Register of Deeds. Long-held tracts around Deer Park may trace back through many deeds, so a title company can sort it out if money is changing hands.
Insurance, lenders and building
On ground around River Falls, get the Elevation Certificate if one exists: it can change the insurance price a lot. Building or adding on near Deer Park in a mapped zone can trigger elevation rules; call the permitting office before you plan.
Field tips
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Boardman, so load it before you lose signal. A printout of the tract near Deer Park helps when you meet an owner or agent.
Getting your bearings
Hudson serves as the county seat, where most land records are kept. You'll also find Glenwood City, New Richmond, River Falls, and Baldwin. About 96,763 people live in St. Croix County (Census estimate, 2023) spread over about 722 square miles. St. Croix County was organized in 1849, which matters when you trace an old farm's title.
Water near Baldwin
Low-lying fields near Baldwin may not have detailed mapping, so walk the land after rain. Marshy spots near Baldwin can limit building too; check the National Wetlands Inventory mapper for a first look.
A short flood checklist
Ask the seller whether the home has flooded on the property near River Falls; getting a quote early avoids surprises.
Legal descriptions in Wisconsin
Wisconsin follows the Public Land Survey System, so deeds around Deer Park reference sections and townships. A standard section is about one square mile, roughly 640 acres, and a township holds 36 of them, though corrections make some sections near Centerville odd-sized. Write down the legal description for the tract near Hudson for any title or survey request.
Quick answers
What if the flood map is wrong for my lot near Glenwood City?
Usually, FEMA's LOMA process is the usual route when a building near Deer Park sits above the base flood elevation; it starts with an elevation survey.
How can I tell if a house near Houlton is in a flood zone?
In most cases, look up the spot near Emerald in FEMA's National Flood Hazard Layer viewer; no account is needed.
Can I see flood zones on the St. Croix County Beacon site?
It depends, but a flood layer may appear in the county Beacon site layer list; confirm a lot near Baldwin on FEMA's map either way.
How often are flood maps updated around Hammond?
Generally, zones near Hudson can shift when FEMA updates a panel, so look at the panel date.
Does the parcel map work on a phone in St. Croix County?
If the land is near New Richmond, most viewers run in a mobile browser, though rural signal can drop.
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.