Blog · October 14, 2026 · Minnesota
Lake Elmo Flood Zone Map, Minnesota: a practical guide
The zone on FEMA's map affects insurance, building and resale near Mahtomedi.
Main page: Washington County, MN GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before an offer near Pine Springs, check the Lake Elmo flood zone map: FEMA's zone label affects insurance, permits and resale. This Lake Elmo guide covers: locating a parcel on FEMA's map, decoding A, AE and X, and matching it with the county parcel viewer.
Getting started with the Lake Elmo flood zone map
Start with FEMA's Flood Map Service Center: search an address around Landfall, and choose the dynamic map. Vacant ground around Woodbury can still be found: zoom in from Interstate 494 and click the spot.
The viewer Washington County publishes
Parcels around Pine Springs appear on the Washington County ArcGIS parcel map, a viewer that needs no account. For land near Oakdale, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. If you're looking near Willernie, the parcel card usually lists the owner of record, acreage on the tax roll, a parcel ID and often a sale date.
Neighboring parcel maps
Washington County touches Anoka County, Chisago County, Dakota County, Ramsey County, and Pierce County, WI, all with their own assessor records. A tract near the line by Pine Springs can be split across two assessors' files, so open the adjacent map before you assume the acreage. In and around Oakdale, the Platbookmapper state page lists each bordering county map for Minnesota.
Deeds, plats and who keeps them
For anything that matters, pull the recorded deed from the County Recorder; the parcel map near Pine Springs only summarizes it. Long-held tracts around Woodbury may trace back through a long string of deeds, so a title company is worth hiring before a purchase.
Where Lake Elmo fits in
Lake Elmo sits in Washington County, Minnesota, and the county assessor maps its lots. In and around Mahtomedi, the municipality handles things like zoning, permits and utilities within town limits, and the county still keeps the parcel and deed records. Land beyond the city limits toward Mahtomedi usually falls under county rules rather than the town's.
Getting answers from the right desk
Questions about value or the owner field for land near Mahtomedi go to the County Assessor, which maintains the tax roll. Questions about what you can build around Pine Springs are for the local planning and health departments, depending on whether the land is inside town limits.
A quick look at the area
Stillwater serves as the county seat, home to the main records offices. Other places on the map include Oakdale, Pine Springs, Landfall, and Willernie, each with its own cluster of lots. About 278,936 people call Washington County home (Census estimate, 2023) on some 385 square miles. Washington County dates to 1849, and some chains of title near Oakdale are long. Landmarks such as Afton State Park are easy to spot when you zoom out from Woodbury.
Low spots and local drainage
Small streams around Woodbury aren't always studied in detail, so walk the land after rain. Wet ground around Woodbury is a separate issue from flood zones; the National Wetlands Inventory mapper shows mapped wetlands.
What to request from a seller
Ask the seller whether the home has flooded on the property near Mahtomedi; an insurance quote early keeps the budget honest.
Decoding the flood zone labels
Zone AE includes a base flood elevation (BFE), and an unnumbered A zone has none; that elevation drives building rules near Oakdale. For a tract near Willernie, a shaded X area is moderate risk, roughly the 100- to 500-year range; unshaded X means minimal mapped risk.
Parcel lines plus flood zones
FEMA's map shows zones but not ownership, so open the Washington County ArcGIS parcel map next to see exactly which lot near Mahtomedi you're looking at.
What a flood zone means for a buyer
If a building sits in a Special Flood Hazard Area and a federally regulated lender is involved, flood insurance is generally required in communities in the NFIP, and that holds around Willernie too. Remodeling a house in a zone near Willernie can trigger elevation rules; call the permitting office before you plan.
Sections, lots and bearings
Minnesota is laid out under the Public Land Survey System, so deeds around Pine Springs reference sections and townships. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though corrections make some sections near Pine Springs odd-sized. Copy the legal description from the record for the parcel near Willernie when you talk to a surveyor.
Quick answers
How often are flood maps updated near Pine Springs?
Good question; zones near Mahtomedi can shift when FEMA updates a panel; your community is notified before changes take effect.
Is Zone X safe from flooding near Landfall?
Short answer: X zones around Woodbury are lower risk, not no risk; many owners near Mahtomedi buy coverage anyway.
What is a LOMA for land near Willernie?
Usually, you can ask FEMA for a LOMA if surveyed elevations show the building near Oakdale is above the BFE; a surveyor's elevation data supports it.
When is flood insurance required around Oakdale?
Generally, lenders generally require it for buildings near Landfall in a Special Flood Hazard Area when the loan is federally regulated or insured, in communities that take part in the NFIP.
Is the parcel map a survey in Lake Elmo?
The map near Pine Springs is approximate, so a fence may sit off the line
Open the official Washington 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.