Blog · October 14, 2026 · Texas
The Howard County Flood Zone Map: a Texas guide
FEMA's free flood maps and the Howard County parcel viewer, used together for property near Big Spring.
Main page: Howard County, TX GIS & Parcel Viewer (official map link, Howard County facts and neighboring maps).
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A Howard County flood zone map check belongs in the due diligence for any Howard County property, from a house lot in Coahoma to farm ground near Forsan. You can check it yourself for any Coahoma address in a few minutes.
Below are the FEMA links, a plain reading of the zone labels, notes on where water shapes land around Coahoma, and short answers to common questions.
How to use the Howard County flood zone map
Open the FEMA Flood Map Service Center and type a county street address, say one in Coahoma. Search returns the effective FIRM panel for the spot in Howard County, plus any pending changes FEMA has posted. If the PDF panel for Howard County is hard to read, try FEMA's National Flood Hazard Layer viewer, so you can see if the shading reaches a house near Big Spring. Switch to the Howard CAD interactive map and track down the same property near Big Spring. Match the Howard County lines and acreage to the FEMA view, since flood maps do not draw property lines in detail.
Finding the tract on the Howard County map
The county's own public map is the Howard CAD interactive map, built on a BIS Consulting map viewer, and it opens without an account for parcels in Big Spring and the rest of the county. Rural accounts near Coahoma list an abstract in the legal description; copy it with the county property ID. Bookmark our Howard County page too; it tracks the official Texas link if it moves and lists the maps around Big Spring.
High, moderate and minimal risk in Howard County
On the FIRM covering Howard County, zones that start with A or V are Special Flood Hazard Areas, defined by a 1-percent annual chance of being flooded. Where a Howard County tract displays Zone AE, there's a base flood elevation to compare a building against; in Zone A there isn't one. Land near Big Spring in shaded X (Zone B on older maps) sits in the moderate band between the 100-year and 500-year floods. Clear, unshaded X near Coahoma is outside the 500-year floodplain.
Neighboring maps around Howard County
A farm near the county line can carry separate records in Borden County, Dawson County, and Glasscock County as well. Every map bordering Howard County is listed on our Texas directory.
Where Howard County land records are kept
For land near Forsan, the deed itself lives in the county recording office, and the map is an index to it. Like every Texas county, Howard County has its own appraisal district; it values property for all the local taxing units, while each unit sets its own rate. Copy the parcel number and legal description from the county record well before you request a deed for land near Big Spring.
Unmapped creeks in Howard County
A low spot on a Howard County tract outside any mapped zone, so treat an unmapped channel as a reason to ask questions, not proof the ground stays dry.
Towns and land across Howard County
Town lots cluster around Big Spring, the county seat, and Forsan and Coahoma. Unincorporated communities in Howard County, including Sand Springs, Elbow, and Knott, show up as small groups of parcels along the roads. Census Bureau estimates put Howard County at about 30,554 residents in 2023 on roughly 901 square miles of land. Outside Coahoma, most of the county map is farm, ranch or timber ground with large, irregular tracts. Landforms such as the Edwards Plateau shape where roads and homesites fall in Howard County. With a founding date of 1882, Howard County has long chains of title on some rural tracts.
Insurance, permits and map changes
Insurance is the practical stake for a Howard County buyer. If a barn or house outside Coahoma is mapped in a high-risk zone and is financed by a regulated or federally insured lender, federal rules call for flood insurance, provided the community near Coahoma takes part in the National Flood Insurance Program. For a Howard County home in shaded or unshaded X, insurance is a choice, not a mandate, although a lender in Texas can still ask for it. When a Howard County homesite is on a rise inside a mapped zone, a Letter of Map Amendment request is the formal route, most commonly backed by an elevation certificate from a surveyor who works in Howard County. Placing fill on low ground near Coahoma most commonly needs a floodplain permit, and the building office serving Big Spring explains the steps.
Howard County flood zones questions
What is a base flood elevation for a Howard County property?
Near Forsan, the base flood elevation marks how high the 100-year flood is expected to rise, and a surveyor compares the building near Coahoma to it.
What does 100-year flood mean for Howard County land?
Not at all; a Howard County tract in that zone faces a 1-percent annual chance, not a once-a-century schedule.
Do I need a permit to build in the floodplain near Coahoma?
Building in a Special Flood Hazard Area near Coahoma most commonly needs a floodplain permit and may require elevating the structure, so check with the county floodplain administrator.
Where can I see flood zones for land near Forsan?
Look it up at FEMA's Flood Map Service Center, then match the parcel lines in the Howard CAD interactive map; for land near Forsan, a zone starting with A or V is high risk.
How do I challenge a flood zone for a lot in Coahoma?
An owner near Forsan can request a Letter of Map Amendment from FEMA with elevation data, most commonly from a professional surveyor.
Who prepares an elevation certificate for a house in Coahoma?
A professional surveyor or engineer prepares it, and the building office serving Coahoma may already have one on file for newer construction.
Open the official Howard County, TX parcel map Howard 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.