Blog · October 17, 2026 · Wisconsin
Union Grove Flood Zone Map: checking a property's flood zone
Flood zones are set by FEMA, and checking one near Rochester takes a few minutes.
Main page: Racine County, WI 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.
Weighing a property around Sturtevant? The Union Grove flood zone map tells you whether FEMA puts it in a high-risk zone, and no account is needed. Covered here for Union Grove: finding the address on FEMA's map, reading the zone codes, and pairing it with the Racine County ArcGIS parcel map.
Getting started with the Union Grove flood zone map
The official source is FEMA's Flood Map Service Center: type an address near Rochester, and choose the dynamic map. A tract near Waterford without an address can still be found: pan from the closest town and click inside the land.
Where the parcel data lives
Your first stop is the Racine County ArcGIS parcel map; it covers each tax parcel in the county, Yorkville included. If the land is near Yorkville, enter a street address, an owner's name or a parcel number, then pick the result to center the map on it. For property near Waterford, write down the parcel ID while you have it open; every clerk in the county asks for it first.
What to request from a seller
Ask the seller for any Elevation Certificate on the property near Rochester; getting a quote early keeps the budget honest.
Using it on a phone
Most viewers work in a phone browser, handy when you're parked on a road near Sturtevant, but coverage can be spotty out of town. A printout of the tract near Waterford keeps working without signal.
How land is described here
Wisconsin is laid out under the Public Land Survey System, which means a tract near Waterford 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 Rochester vary in size. Keep the legal description for land near Rochester when you talk to a surveyor.
Union Grove and the county around it
Union Grove is part of Racine County, Wisconsin, so its parcels are on the county's map. For land near Mount Pleasant, city or town hall handles things like zoning, permits and utilities for lots inside the boundary, and the county still keeps the parcel and deed records. Acreage past the town limits near Rochester usually falls under 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; surveyors near Sturtevant use that number. On ground around Yorkville, a shaded X area is moderate risk, between the 1% and 0.2% annual chance floods; plain X, or C on older maps, means minimal mapped risk.
Recorded documents worth pulling
The map is an index, not the title: deeds, plats and easements for land near Waterford sit with the Register of Deeds. Older tracts near Mount Pleasant can sit on several deeds, and a title company earns its fee if money is changing hands.
Lining it up with the parcel map
FEMA's map shows zones but not ownership, so pair it with the Racine County ArcGIS parcel map to confirm you have the right parcel near Yorkville.
Beyond the mapped zones
Creeks and ditches near Sturtevant aren't always studied in detail, so look for water marks and debris lines. Wet ground around Waterford is a separate issue from flood zones; check the National Wetlands Inventory mapper for a first look.
Getting your bearings
For land near Mount Pleasant, racine holds the county offices, home to the main records offices. You'll also find Yorkville, Sturtevant, Raymond, and Mount Pleasant. Roughly 196,613 people call Racine County home (Census Bureau estimate, 2023) on some 333 square miles. If the land is near Sturtevant, Racine County dates to 1836, which matters when you trace an old farm's title.
Money questions tied to the zone
Closer to Yorkville, get the Elevation Certificate if one exists: it can change the insurance price a lot. Building or adding on near Rochester in a mapped zone often needs a floodplain permit; call the permitting office before you plan.
Who handles what
If the acreage or value on a parcel near Yorkville looks off belong with the county real property listing office, the office behind the parcel record. Zoning, permits and septic questions near Waterford go to planning, building or health offices, depending on whether the land is inside town limits.
Union Grove: common questions
Is AE a high-risk flood zone around Waterford?
Generally, AE is a Special Flood Hazard Area with a published base flood elevation, which shapes building rules near Mount Pleasant.
Does the county parcel map show flood zones around Rochester?
Short answer: a flood layer may appear in the Racine County ArcGIS parcel map layer list, though it can lag behind FEMA's current panels.
Where can I see the Union Grove flood zone map for free?
Usually, look up the spot near Waterford in FEMA's National Flood Hazard Layer viewer; then confirm the parcel on the county viewer.
What is a LOMA in Union Grove?
For most people, FEMA's LOMA process is the usual route when a building near Sturtevant sits above the base flood elevation; a surveyor's elevation data supports it.
Can I use the viewer in the field near Raymond?
Most viewers run in a mobile browser; load it before you lose coverage near Yorkville.
Open the official Racine 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.