Blog · October 14, 2026 · Texas
Reading the Marshall Flood Zone Map for a parcel
The zone on FEMA's map affects insurance, building and resale near Uncertain.
Main page: Harrison County, TX GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Waskom, pull up the Marshall flood zone map: FEMA's zone label affects insurance, building rules and resale. What this Marshall guide covers: locating a parcel on FEMA's map, decoding A, AE and X, and pairing it with the Texas county CAD map.
The Marshall flood zone map: start here
The official source is FEMA's Flood Map Service Center: type an address near Longview, then open the map view for that panel. A tract near Hallsville without an address is still easy to locate: zoom in from Interstate 20 then click the parcel area.
Where the parcel data lives
Begin with the Texas county CAD map; it maps each assessed parcel from Waskom to Scottsville. Closer to Scottsville, enter a street address, an owner's name or a parcel number, and the viewer zooms to the match. With a lot near Scottsville, the parcel card typically gives the owner of record, acreage on the tax roll, the parcel number and sometimes recent sales.
Where the recorded documents are
For anything that matters, request the recorded deed through the County Clerk; the parcel map near Longview only summarizes it. Long-held tracts near Waskom may go back through a long string of deeds, and a title company is worth hiring on a real sale.
City limits and county records
Marshall is part of Harrison County, Texas, which means parcel data comes from the county. Marshall is also the county seat, so deeds and plats are filed in town. Local government in Marshall handles matters such as zoning, permits and utilities inside its limits, but the county runs assessment and recording. Lots just outside the town limits out by Waskom often answers to county rules instead.
Which office to call
If the acreage or value on a parcel near Waskom looks off are handled by the appraisal district, since that office keeps the assessment data. Questions about what you can build around Waskom go to planning, building or health offices, and the answer depends on jurisdiction.
A short flood checklist
Request whether the home has flooded on the property near Uncertain; an insurance quote early avoids surprises.
Legal descriptions in Texas
Tracts outside towns near Waskom are often described by metes and bounds, a series of courses and distances from a starting point. Town lots near Hallsville usually use lot and block from a recorded plat instead, making them easier to find. Write down the legal description for the tract near Uncertain for any title or survey request.
What the zone letters mean
Zone AE includes a base flood elevation (BFE), and an unnumbered A zone has none; that elevation drives building rules near Uncertain. For a home near Longview, shaded Zone X is moderate risk, between the 1% and 0.2% annual chance floods; unshaded X means minimal mapped risk.
Parcel lines plus flood zones
FEMA's map shows zones but not ownership, so open the Texas county CAD map next to see exactly which lot near Scottsville you're looking at.
Water near Longview
Small streams around Uncertain may not have detailed mapping, so look for water marks and debris lines. Marshy spots near Hallsville can limit building too; check the National Wetlands Inventory mapper for a first look.
Insurance, lenders and building
If you're looking near Waskom, an Elevation Certificate from a surveyor helps: it can change the insurance price a lot. Remodeling a house in a zone near Waskom usually means extra permit review; call the permitting office early.
Harrison County in a few facts
Marshall is the county seat, home to the main records offices. You'll also find Scottsville, Hallsville, Uncertain, and Waskom, where town lots give way to larger tracts. About 70,895 people live in Harrison County (Census Bureau estimate, 2023) spread over about 900 square miles. Harrison County dates to 1842, which matters when you trace an old farm's title. Landmarks such as Caddo Lake National Wildlife Refuge are easy to spot when you zoom out from Scottsville.
Before you lean on the lines
Parcel lines are drawn for taxes, not measured on the ground, so the edge of a yard near Waskom may sit a few yards off the line on screen. Out toward Waskom, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Marshall: common questions
What is a LOMA near Longview?
For most people, FEMA's LOMA process is the usual route when a building near Waskom sits above the base flood elevation; a surveyor's elevation data supports it.
What is a base flood elevation in Marshall?
Good question; the BFE is printed in AE zones on FEMA's map; surveyors near Uncertain use it often.
Do I need to worry about flooding in Zone X in Marshall?
For most people, X zones around Waskom are lower risk, not no risk; many owners near Longview buy coverage anyway.
When is flood insurance required in Marshall?
Short answer: lenders generally require it for buildings near Waskom in a Special Flood Hazard Area when the loan is federally regulated or insured; elsewhere it's optional.
Where do I find the parcel number for land near Scottsville?
It's the number the appraisal district uses to track a tract near Uncertain; copy it before you call anyone.
Open the official Harrison County, TX 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.