Blog · October 14, 2026 · Wisconsin
De Pere Flood Zone Map: checking a property's flood zone
The zone on FEMA's map affects insurance, building and resale near Allouez.
Main page: Brown 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.
Before an offer near Allouez, look at the De Pere flood zone map: FEMA's zone label affects insurance, building rules and resale. This De Pere 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 De Pere flood zone map
Start with FEMA's Flood Map Service Center: type an address near Bellevue, and pick the FIRMette or map view. Vacant ground around Allouez is still easy to locate: zoom in from the nearest road then click the parcel area.
The free map to start with
Lots and tracts near Green Bay are published on the Brown County ArcGIS parcel map, a viewer that needs no account. In and around Greenleaf, enter a street address, an owner's name or a parcel number, and the viewer zooms to the match. In and around Hobart, a pop-up or side panel usually lists the owner of record, assessed acreage, the parcel number and in many cases the last transfer.
De Pere and the county around it
De Pere is part of Brown County, Wisconsin, which means parcel data comes from the county. Local government in De Pere handles matters such as zoning, permits and utilities for lots inside the boundary, but the county runs assessment and recording. Acreage past the city limits near Ashwaubenon often answers to county rules rather than the town's.
Decoding the flood zone labels
Near Ashwaubenon, zones beginning with A or V mark the Special Flood Hazard Area, meaning a 1% or greater chance of flooding each year. For a parcel near Greenleaf, minimal risk is not no risk: according to FEMA, many claims come from moderate- and low-risk areas.
Matching the zone to the lot lines
FEMA's map shows zones but not ownership, so open the Brown County ArcGIS parcel map next for the outline of the tract near Bellevue.
When a parcel crosses a boundary
Brown County borders Calumet County, Door County, Kewaunee County, Manitowoc County, and Oconto County, and each of those keeps its own parcel map. A tract near the line by Hobart can be split across two assessors' files, so check the neighboring map as well. On ground around Greenleaf, our state page links each neighboring county map for Wisconsin.
Taking the map into the field
Most viewers work in a phone browser, handy when you're parked on a road near Greenleaf, so load it before you lose signal. A printout of the tract near Greenleaf is a good backup.
Before you lean on the lines
Tax maps are drawn for assessment, not measured on the ground, so a tree line near Hobart often sits a few yards off the line on screen. For property near Hobart, owner names and values update on a schedule, so a deed recorded last month may not show yet.
Legal descriptions in Wisconsin
Wisconsin follows the Public Land Survey System, which means a tract near Greenleaf 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 sections near Hobart can be irregular. Write down the legal description for the tract near Hobart when you talk to a surveyor.
Beyond the mapped zones
Low-lying fields near Greenleaf aren't always studied in detail, so walk the land after rain. Wetlands near Green Bay can limit building even outside a flood zone; check the National Wetlands Inventory mapper for a first look.
Lenders and permits
For a home near Allouez, get the Elevation Certificate if one exists: it records the building's elevation against the base flood. Building or adding on near Ashwaubenon in a mapped zone usually means extra permit review; check with the county or town building office before you plan.
A short flood checklist
Request for any Elevation Certificate on the property near Ashwaubenon; getting a quote early keeps the budget honest.
Recorded documents worth pulling
The map is an index, not the title: deeds, plats and easements for land near Greenleaf are kept by the Register of Deeds. For acreage around Green Bay, have ready the book and page shown in the record panel so staff can find the deed fast.
Frequently asked
When is flood insurance required near Bellevue?
It depends, but lenders generally require it for buildings near Allouez in a Special Flood Hazard Area when the loan is federally regulated or insured; elsewhere it's optional.
Is AE a high-risk flood zone near Green Bay?
In most cases, AE is a Special Flood Hazard Area with a published base flood elevation, so builders near Ashwaubenon design to that elevation.
What is a base flood elevation near Allouez?
For most people, a BFE near Allouez tells builders how high the lowest floor should be, and an Elevation Certificate compares the building to it.
Can I see flood zones on the Brown County ArcGIS parcel map?
Short answer: the parcel map near Greenleaf might show FEMA zones; confirm a lot near Ashwaubenon on FEMA's map either way.
Does the parcel map work on a phone around Greenleaf?
No app is needed for most county viewers; load it before you lose coverage near Bellevue.
Open the official Brown 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.