Blog · October 14, 2026 · Oklahoma
Marshall County Flood Zone Map: checking a property's flood zone
The zone on FEMA's map affects insurance, building and resale near Tishomingo National Wildlife Refuge.
Main page: Marshall County, OK GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Madill, check the Marshall County flood zone map: a mapped flood zone changes insurance, building rules and resale. Covered here for Marshall County: finding the address on FEMA's map, reading the zone codes, and confirming the outline on the county map.
Getting started with the Marshall County flood zone map
Out toward Lake Texoma, start with FEMA's Flood Map Service Center: enter the street address, and choose the dynamic map. Vacant ground around McBride is still easy to locate: zoom in from the nearest road and click the spot.
Getting to the right map
Go first to the OKMaps (Oklahoma Office of Geographic Information) - Statewide Parcels layer; it covers every assessed parcel around Kingston and McBride. When a rural tract has no street number, follow the nearest road on the aerial and select the outline, which applies near Lake Texoma as much as anywhere. For a tract near Lake Texoma, copy the parcel ID from that panel; every records desk in the county will want it.
How land is described here
Oklahoma is laid out under the Public Land Survey System, so deeds around Lebanon reference sections and townships. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though real sections near Tishomingo National Wildlife Refuge vary in size. Keep the legal description for land near Cumberland when you talk to a surveyor.
Questions to ask before you buy
Ask the seller for any Elevation Certificate on the property near Lake Texoma; getting a quote early avoids surprises.
A quick look at the area
Madill is the county seat, where most land records are kept. Other places on the map include Kingston, New Woodville, Oakland, and Cumberland, each with its own cluster of lots. About 15,970 people live in this county (Census estimate, 2023) spread over about 371 square miles for land near Lebanon. The county was organized in 1907, and some chains of title near Tishomingo National Wildlife Refuge are long. Features like Lake Texoma and Tishomingo National Wildlife Refuge make handy reference points on the map.
Next door to Marshall County
Marshall County meets Bryan County, Carter County, Johnston County, Love County, and Grayson County, TX, all with their own assessor records. Acreage along the edge near Madill may show up in two county records, so check the adjacent map too. If the land is near McBride, the Platbookmapper state page links each bordering county map for Oklahoma.
Using it on a phone
The parcel map usually runs in a mobile browser, useful out on a road near Oakland, though signal can drop in rural spots. A printout of the tract near Tishomingo National Wildlife Refuge keeps working without signal.
What the zone letters mean
Zone AE includes a base flood elevation (BFE), while plain Zone A does not; surveyors near Tishomingo National Wildlife Refuge use that number. For a parcel near McMillan, minimal risk is not no risk: FEMA notes that many claims come from moderate- and low-risk areas.
Lining it up with the parcel map
If only part of a parcel near Little City is shaded, the location of the house or building pad decides a lot.
What the map can't tell you
If the land is near Tishomingo National Wildlife Refuge, acreage on the record is a tax-roll number; only a licensed surveyor establishes the real corners on the ground. Closer to Tishomingo National Wildlife Refuge, records update in batches, so a deed recorded last month can take weeks to appear.
Low spots and local drainage
Creeks and ditches near Kingston aren't always studied in detail, so ask neighbors about past flooding. Wetlands near McBride can limit building even outside a flood zone; check the National Wetlands Inventory mapper for a first look.
Recorded documents worth pulling
With a lot near Tishomingo National Wildlife Refuge, the map is an index, not the title: recorded deeds, subdivision plats and easements for parcels in the county are filed with the County Clerk. For a parcel near Kingston, have ready the instrument number shown in the record panel to skip a name search.
Lenders and permits
On ground around Cumberland, get the Elevation Certificate if one exists: it compares the building to the BFE. Remodeling a house in a zone near Oakland usually means extra permit review; check with the county or town building office before you plan.
Questions about the Marshall County flood zone map
Is Zone X safe from flooding in Marshall County?
It depends, but X zones around Little City are lower risk, not no risk, and floods still happen outside high-risk zones.
When is flood insurance required for land near Kingston?
In most cases, lenders generally require it for buildings near New Woodville in a Special Flood Hazard Area when the loan is federally regulated or insured; elsewhere it's optional.
Can I see flood zones on the OKMaps (Oklahoma Office of Geographic Information) - Statewide Parcels layer for land near Lake Texoma?
Generally, the parcel map near Little City might show FEMA zones, but FEMA's own map is the official source.
Is AE a high-risk flood zone in Marshall County?
For a parcel near Kingston, AE is a Special Flood Hazard Area with a published base flood elevation; unnumbered A zones don't list one.
How is land described in Oklahoma deeds in Marshall County?
For a tract near Madill, it's the formal description of the land in the deed; a surveyor can interpret it.
Open the official Marshall County, OK 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.