Blog · October 14, 2026 · Idaho
Using the Madison County Flood Zone Map
Flood zones are set by FEMA, and checking one near Targhee National Forest takes a few minutes.
Main page: Madison County, ID 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 Burton? A quick look at the Madison County flood zone map shows whether the lot falls inside a mapped floodplain, and it costs nothing to check. In this Madison County guide: the free FEMA tools, what each zone label means, lender insurance rules and how to challenge a map that looks wrong.
Getting started with the Madison County flood zone map
With a lot near Thornton, flood zones come from FEMA's Flood Map Service Center: enter the street address, then open the map view for that panel. A tract near Thornton without an address is still easy to locate: search the nearest road and click inside the land.
Pulling up a parcel
Begin with the Madison County parcel viewer; it maps each tax parcel in the county, Hibbard included. For acreage around Archer, put in a street address, an owner's name or a parcel number, and the matching parcel lights up. On ground around Archer, the parcel card usually lists the owner of record, assessed acreage, the parcel number and sometimes recent sales.
Decoding the flood zone labels
Zone AE includes a base flood elevation (BFE), and an unnumbered A zone has none; surveyors near Hibbard use that number. On ground around Burton, a shaded X area marks moderate flood hazard, roughly the 100- to 500-year range; plain X, or C on older maps, means minimal mapped risk.
Using it on a phone
Most viewers work in a phone browser, which helps when you're standing on land near Burton, so load it before you lose signal. A saved image of the lot near Sugar City and its lines helps when you meet an owner or agent.
Parcel lines plus flood zones
When the zone clips a corner of a lot near Hibbard, the structure's footprint is the key question.
What to request from a seller
For a home near Targhee National Forest, request for any Elevation Certificate before closing; an insurance quote early keeps the budget honest.
What a flood zone means for a buyer
For a structure inside an A or V zone and a federally regulated lender is involved, flood insurance is generally required where the community participates in the National Flood Insurance Program, whether the land is near Thornton or elsewhere in the county. New construction in a floodplain near Targhee National Forest often needs a floodplain permit; ask the local floodplain administrator before you plan.
Water near Hibbard
Low-lying fields near Hibbard may not have detailed mapping, so look for water marks and debris lines. Marshy spots near Hibbard can limit building too; the National Wetlands Inventory mapper shows mapped wetlands.
Getting answers from the right desk
Deeds, mortgages and recorded plats for land near Targhee National Forest sit in the index kept by the County Recorder (the county clerk serves as recorder), usually searchable by name or document number. Questions about what you can build around Thornton are for the local planning and health departments, and the answer depends on jurisdiction.
Before you lean on the lines
Listed acreage is an assessed number; just a licensed surveyor sets the real lines for a parcel near Sugar City. For property near Thornton, records update in batches, so a deed recorded last month might lag behind.
Where the recorded documents are
The map is an index, not the title: deeds, plats and easements covering ground around Rexburg are filed with the County Recorder (the county clerk serves as recorder). Long-held tracts around Sugar City may sit on a long string of deeds, so a title company can sort it out on a real sale.
Sections, lots and bearings
Idaho uses the Public Land Survey System, so rural legal descriptions near Rexburg cite section, township and range. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though real sections near Sugar City vary in size. Write down the legal description for the tract near Rexburg before you request a deed or survey.
Madison County in a few facts
Rexburg serves as the county seat, home to the main records offices. Other places on the map include Sugar City, Archer, Burton, and Thornton, where town lots give way to larger tracts. About 54,547 people call Madison County home (Census Bureau estimate, 2023) spread over roughly 469 square miles. Madison County dates to 1913, so old deeds can run back a long way. Landmarks such as Targhee National Forest help you orient on the aerial around Burton.
Quick answers
What is the difference between Zone A and AE for land near Burton?
Short answer: AE is a Special Flood Hazard Area with a published base flood elevation, so builders near Hibbard design to that elevation.
What is a LOMA for land near Thornton?
In and around Rexburg, a Letter of Map Amendment (LOMA) from FEMA can remove a structure on naturally high ground; it starts with an elevation survey.
When is flood insurance required near Targhee National Forest?
For land near Burton, it's typically required only for structures in high-risk zones with federally backed loans, in communities that take part in the NFIP.
How often are flood maps updated near Thornton?
With a lot near Sugar City, FEMA revises flood maps panel by panel as new studies finish, so look at the panel date.
Can I print the parcel map for land near Sugar City?
With a lot near Sugar City, most viewers have a print or export tool; downloads of raw data vary by county.
Open the official Madison County, ID 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.