Blog · October 14, 2026 · Alabama
Demopolis Flood Zone Map, Alabama: a practical guide
Flood zones are set by FEMA, and checking one near Myrtlewood takes a few minutes.
Main page: Marengo County, AL GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Faunsdale, check the Demopolis flood zone map: FEMA's zone label affects insurance, building rules and resale. In this Demopolis guide: locating a parcel on FEMA's map, reading the zone codes, and pairing it with the AlabamaGIS / Flagship GIS - Marengo County Revenue Commission public GIS.
Getting started with the Demopolis flood zone map
The official source is FEMA's Flood Map Service Center: type an address near Faunsdale, then open the map view for that panel. Vacant ground around Myrtlewood is still easy to locate: zoom in from the nearest road then click the parcel area.
The free map to start with
Your first stop is the AlabamaGIS / Flagship GIS - Marengo County Revenue Commission public GIS; it includes each assessed parcel around Dayton and Thomaston. If you're looking near Providence, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. For property near Thomaston, write down the parcel ID while you have it open; each records desk in the county uses it to find the file.
A short flood checklist
Request whether the home has flooded on the property near Myrtlewood; an insurance quote early keeps the budget honest.
Getting your bearings
Linden holds the county offices, which is where the courthouse records live. You'll also find Providence, Faunsdale, and Dayton, each with its own cluster of lots. About 18,684 people call Marengo County home (Census estimate, 2023) spread over roughly 977 square miles. The county was organized in 1818, and some chains of title near Myrtlewood are long.
Land on the county line
Marengo County meets Choctaw County, Clarke County, Dallas County, Greene County, and Hale County; every one of them runs a separate parcel map. Acreage along the edge near Myrtlewood may be split across two assessors' files, so look at the neighboring map too. If the land is near Thomaston, the Platbookmapper state page links every bordering county map for Alabama.
Reading the legal description
Alabama follows the Public Land Survey System, which means a tract near Myrtlewood is described by section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though sections near Linden can be irregular. Copy the legal description from the record for the parcel near Faunsdale before you request a deed or survey.
Demopolis, AL: the basics
Demopolis sits in Marengo County, Alabama, which means parcel data comes from the county. If you're looking near Faunsdale, the municipality handles matters such as zoning, permits and utilities for lots inside the boundary, while the county keeps the tax map. Acreage past the city limits near Dayton usually follows county rules rather than the town's.
Reading A, AE and X
Zone AE comes with a base flood elevation, while plain Zone A does not; that elevation drives building rules near Linden. If the land is near Providence, shaded Zone X is moderate risk, between the 1% and 0.2% annual chance floods; unshaded X means minimal mapped risk.
Lining it up with the parcel map
FEMA's map shows zones but not ownership, so pair it with the AlabamaGIS / Flagship GIS - Marengo County Revenue Commission public GIS to see exactly which lot near Myrtlewood you're looking at.
A word on accuracy
Parcel lines are drawn for taxes, not measured on the ground, so a tree line near Thomaston may sit several feet off the line on screen. If the land is near Dayton, owner names and values update on a schedule, so a deed recorded last month may not show yet.
Low spots and local drainage
Small streams around Thomaston may not have detailed mapping, so walk the land after rain. Wetlands near Providence can limit building even outside a flood zone; the National Wetlands Inventory mapper shows mapped wetlands.
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 in communities in the NFIP, which applies near Providence as much as anywhere. Remodeling a house in a zone near Linden often needs a floodplain permit; ask the local floodplain administrator before you plan.
Quick answers
Can I see flood zones on the AlabamaGIS / Flagship GIS - Marengo County Revenue Commission public GIS?
Usually, a flood layer may appear in the AlabamaGIS / Flagship GIS - Marengo County Revenue Commission public GIS layer list, but FEMA's own map is the official source.
Is Zone X safe from flooding around Thomaston?
X zones around Providence are lower risk, not no risk; many owners near Myrtlewood buy coverage anyway.
Is AE a high-risk flood zone in Demopolis?
In most cases, an AE zone has a 1% annual chance of flooding and a base flood elevation, which shapes building rules near Faunsdale.
What is a base flood elevation for land near Myrtlewood?
Usually, a BFE near Providence tells builders how high the lowest floor should be; local rules may require building above it.
Which office handles records for land near Linden?
For land near Myrtlewood, assessment goes to the revenue commissioner or tax assessor and deeds to the Judge of Probate (probate office), while zoning questions go to planning
Open the official Marengo County, AL 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.