Blog · October 14, 2026 · Tennessee
The Grundy County Flood Zone Map: a Tennessee guide
Look up any Grundy County address on FEMA's flood map, read the zone, and match it to the parcel record for land around Monteagle.
Main page: Grundy County, TN GIS & Parcel Viewer (official map link, Grundy County facts and neighboring maps).
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Before you buy a house in Monteagle, add on to a barn near Gruetli-Laager, or price a lot along the creek bottoms near Pelham, check the Grundy County flood zone map. FEMA's free Flood Map Service Center and the Grundy County parcel viewer answer it together.
Below are the FEMA links, a plain reading of the zone labels, notes on where water shapes land around Monteagle, and short answers to common questions.
How to check the Grundy County flood zone map
Start at the FEMA Flood Map Service Center and enter the property address in Altamont or anywhere else in the county. If a tract around Palmer has no street number yet, search the nearest road and pan to it. If the PDF panel for Grundy County is hard to read, try FEMA's National Flood Hazard Layer viewer, which lists how much of a Grundy County parcel sits inside the zone. Next, the Tennessee Property Viewer confirms which Grundy County parcel you're looking at. Laying the county parcel outline beside the FEMA shading lists if a homesite near Palmer sits above or inside the zone.
Opening the Grundy County parcel viewer
Grundy County parcels are viewed through a statewide map, the Tennessee Property Viewer; zoom toward Tracy City to reach them. Choose Grundy County from the county list first, then search a Tracy City address or an owner name. For a backup route to the map covering Gruetli-Laager, our Grundy County directory entry keeps the link current.
Near the Grundy County line
Near the edge of the county, check the next map over: Coffee County, Franklin County, Marion County, Sequatchie County, and Warren County all border it. Every map bordering Grundy County is listed on our Tennessee directory.
From Altamont to the back roads
From Altamont, the seat of the county, the map spreads out to Coalmont, Gruetli-Laager, Beersheba Springs, and Monteagle. Smaller places such as Pelham appear on the county map as little clusters of lots. Census Bureau estimates put Grundy County at about 13,955 residents in 2023 on about 360 square miles of land. Outside Palmer, most of the county map is farm, ranch or timber ground with large, irregular tracts.
Reading the zones on a Grundy County flood map
For a lot in Altamont, the label matters more than the color: A and V zones are Special Flood Hazard Areas, defined by a 1-percent annual chance of being flooded. A surveyor working near Altamont uses the base flood elevation printed for AE zones; unnumbered A zones don't have one. Land near Palmer in shaded X (Zone B on older maps) falls between the base flood and the 500-year flood. Clear, unshaded X near Altamont is outside the 500-year floodplain.
Deeds and plats behind the Grundy County map
The parcel layer for Grundy County points back to recorded deeds and plats, kept by the county's recording office (its title varies by state). Copy the parcel ID and legal description from the county record well before you request a deed for land near Gruetli-Laager.
Unmapped creeks in Grundy County
A creek near Palmer that lists no detailed zone, so treat an unmapped channel as a reason to ask questions, not proof the ground stays dry.
When the map affects a deal
Here's why the zone matters at a closing in Altamont. When a Grundy County home sits in a Special Flood Hazard Area and is financed by a regulated or federally insured lender, federal rules call for flood insurance, as long as Grundy County or the town participates in the NFIP. For a Grundy County home in shaded or unshaded X, insurance is a choice, not a mandate, although some lenders require it anyway. When a Grundy County homesite is on a rise inside a mapped zone, the owner can ask FEMA for a Letter of Map Amendment (LOMA), supported by elevation data from a licensed land surveyor. Adding on to a house near Palmer inside the zone most often needs a floodplain permit; the county floodplain administrator can say what applies.
Quick answers for Grundy County
How do I challenge a flood zone for a lot in Palmer?
An owner near Monteagle can request a Letter of Map Amendment from FEMA with elevation data, most often from a licensed land surveyor.
Is there a floodplain layer in the Tennessee Property Viewer?
Check the layer list in the Tennessee Property Viewer; if Grundy County includes a floodplain layer, confirm the zone on FEMA's map anyway.
What does 100-year flood mean for Grundy County land?
No; land near Monteagle in the 100-year floodplain faces a 1-percent annual chance, so floods can come in back-to-back years.
Do I need a permit to build in the floodplain near Palmer?
Building in a Special Flood Hazard Area near Palmer most often needs a floodplain permit and may require elevating the structure, so check with the county floodplain administrator.
What does BFE mean on the flood map for Palmer?
On the map covering Palmer, it's the projected water surface in the base flood, and a surveyor compares the building near Palmer to it.
Open the official Grundy County, TN parcel map Grundy County 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.