Blog · October 14, 2026 · Texas
Hamilton County Flood Zone Map: checking a property's flood zone
Flood zones are set by FEMA, and checking one near Cranfills Gap takes a few minutes.
Main page: Hamilton County, TX GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Gentry's Mill, look at the Hamilton County flood zone map: the zone on that map shapes insurance, building rules and resale. In this Hamilton County guide: finding the address on FEMA's map, decoding A, AE and X, and pairing it with the Hamilton CAD interactive map.
The Hamilton County flood zone map: start here
If you'd rather pan and zoom, try the National Flood Hazard Layer viewer, which draws the zones over aerial imagery, which applies near Evant as much as anywhere. Rural land near Gentry's Mill with no street number is still easy to locate: zoom in from the nearest road then click the parcel area.
Getting to the right map
Your first stop is the Hamilton CAD interactive map; it covers every assessed parcel around Gentry's Mill and Indian Gap. For a tract near Cranfills Gap, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. For a tract near Gentry's Mill, save the parcel ID from that panel; each office in the county uses it to find the file.
A short flood checklist
For acreage around Gentry's Mill, request about past flood claims before closing; an insurance quote early keeps the budget honest.
Neighboring parcel maps
Hamilton County touches Bosque County, Comanche County, Coryell County, Erath County, and Lampasas County, and each of those keeps its own parcel map. Acreage along the edge near Aleman may be split across two assessors' files, so check the adjacent map before you assume the acreage. For acreage around Hico, our state page lists each neighboring county map across Texas.
Which office to call
If the acreage or value on a parcel near Cranfills Gap looks off belong with the appraisal district, the office behind the parcel record. Zoning, permits and septic questions near Aleman are for the local planning and health departments, and the answer depends on jurisdiction.
Field tips
The parcel map usually runs in a mobile browser, useful out on a road near Carlton, so load it before you lose signal. A saved image of the lot near Carlton and its lines is a good backup.
Reading A, AE and X
For a parcel near Cranfills Gap, zones beginning with A or V are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any year. For a parcel near Hico, shaded Zone X marks moderate flood hazard, between the 1% and 0.2% annual chance floods; plain X, or C on older maps, means minimal mapped risk.
A word on accuracy
With a lot near Aleman, the acreage figure is an assessed number; only a licensed surveyor establishes the real lines on the ground. For land near Hico, records update in batches, so a deed recorded last month might lag behind.
Low spots and local drainage
Small streams around Cranfills Gap may not have detailed mapping, so look for water marks and debris lines. Marshy spots near Indian Gap can limit building too; check the National Wetlands Inventory mapper for a first look.
Matching the zone to the lot lines
FEMA's map shows zones but not ownership, so open the Hamilton CAD interactive map next to see exactly which lot near Indian Gap you're looking at.
Sections, lots and bearings
Older tracts around Cranfills Gap are often described by metes and bounds, a series of courses and distances from a starting point. Platted lots around Carlton usually use lot and block from a recorded plat instead, which is simpler to follow. Keep the legal description for land near Fairy when you talk to a surveyor.
What a flood zone means for a buyer
For a home near Aleman, an Elevation Certificate from a surveyor helps: it records the building's elevation against the base flood. Building or adding on near Fairy in a mapped zone usually means extra permit review; call the permitting office before you plan.
Backing up the map with records
Around Cranfills Gap, the map is an index, not the title: deeds, subdivision plats and easements for parcels in the county are kept by the County Clerk. With a lot near Hico, older tracts in the county may sit on several deeds, and a title company can sort it out before a purchase.
Frequently asked
What does Zone X mean near Hico?
If the land is near Carlton, shaded X is moderate risk and unshaded X is minimal risk; FEMA notes that a large share of claims come from these areas.
Is my property near Gentry's Mill in a flood zone?
For most people, look up the spot near Carlton in FEMA's National Flood Hazard Layer viewer, which takes a couple of minutes.
What is the difference between Zone A and AE near Indian Gap?
Around Cranfills Gap, an AE zone has a 1% annual chance of flooding and a base flood elevation; unnumbered A zones don't list one.
Can I see flood zones on the Hamilton CAD interactive map?
Short answer: a flood layer may appear in the Hamilton CAD interactive map layer list; confirm a lot near Indian Gap on FEMA's map either way.
What is a parcel ID near Carlton?
It's the number the appraisal district uses to track a tract near Gentry's Mill; you'll see it in the viewer and on tax statements.
Open the official Hamilton 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.