Blog · October 14, 2026 · Texas
Reading the Mexia Flood Zone Map for a parcel
The zone on FEMA's map affects insurance, building and resale near Mart.
Main page: Limestone County, TX GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before you buy or build near Tehuacana, check the Mexia flood zone map: the zone on that map shapes insurance, permits and resale. What this Mexia guide covers: finding the address on FEMA's map, decoding A, AE and X, and pairing it with the Texas county CAD map.
Checking the Mexia flood zone map step by step
Flood zones come from FEMA's Flood Map Service Center: type an address near Groesbeck, and choose the dynamic map. Rural land near Mart with no street number is still easy to locate: search the nearest road then click the parcel area.
The viewer Limestone County publishes
Begin with the Texas county CAD map; it covers each tax parcel from Thornton to Kosse. If you only know roughly where the land is, pan along the nearest road and click the parcel itself, and that holds around Kosse too. If you're looking near Thornton, the parcel card usually lists the owner of record, acreage on the tax roll, the parcel number and often a sale date.
Offices that can help
Questions about value or the owner field for land near Tehuacana belong with the appraisal district, since that office keeps the assessment data. Questions about what you can build around Tehuacana go to planning, building or health offices, and the answer depends on jurisdiction.
A word on accuracy
Tax maps are drawn for assessment, not measured on the ground, so a tree line near Kosse often sits some distance off the line on screen. Records update in batches, so a fresh transfer around Thornton may not show yet.
Mexia and the county around it
Mexia is part of Limestone County, Texas, which means parcel data comes from the county. For land near Mart, city or town hall handles things like zoning, permits and utilities for lots inside the boundary, while the county keeps the tax map. Lots just outside the town limits out by Kosse usually answers to county rules instead.
Deeds, plats and who keeps them
Before you sign anything, pull the recorded deed from the County Clerk; the parcel map near Coolidge only summarizes it. With a lot near Kosse, have ready the document number shown in the record panel and the lookup takes minutes.
What the zone letters mean
An AE label includes a base flood elevation (BFE), and an unnumbered A zone has none; that elevation drives building rules near Thornton. For a tract near Thornton, a low-risk label isn't a guarantee: FEMA notes that many claims come from moderate- and low-risk areas.
What to request from a seller
Ask the listing agent whether the home has flooded for the house near Kosse; getting a quote early keeps the budget honest.
Beyond the mapped zones
Small streams around Mart may not have detailed mapping, so ask neighbors about past flooding. Wet ground around Groesbeck is a separate issue from flood zones; check the National Wetlands Inventory mapper for a first look.
Next door to Limestone County
Limestone County borders Falls County, Freestone County, Hill County, Leon County, and McLennan County; every one of them runs a separate parcel map. Acreage along the edge near Kosse can be split across two assessors' files, so check the adjacent map too. For property near Thornton, the Platbookmapper state page links every bordering county map for Texas.
How land is described here
Older tracts around Thornton commonly use metes-and-bounds descriptions, listing bearings, distances and landmarks. Subdivision lots in Groesbeck refer to a recorded plat, making them easier to find. Copy the legal description from the record for the parcel near Mart before you request a deed or survey.
Lining it up with the parcel map
FEMA doesn't draw property lines, so check the Texas county CAD map too to see exactly which lot near Mart you're looking at.
Insurance, lenders and building
For a structure inside an A or V zone and a federally regulated lender is involved, the lender will require flood insurance in communities in the NFIP, and that holds around Coolidge too. Remodeling a house in a zone near Tehuacana often needs a floodplain permit; call the permitting office early.
Getting your bearings
Other places on the map include Tehuacana, Groesbeck, Coolidge, and Thornton, where town lots give way to larger tracts. About 22,250 people live in Limestone County (Census Bureau estimate, 2023) on some 905 square miles. Limestone County was formed in 1846, so old deeds can run back a long way.
Mexia: common questions
How do I check the flood zone for an address in Mexia?
Good question; search the address near Tehuacana on FEMA's Flood Map Service Center, which takes a couple of minutes.
Is AE a high-risk flood zone in Mexia?
Short answer: an AE zone has a 1% annual chance of flooding and a base flood elevation, which shapes building rules near Coolidge.
What is a LOMA in Mexia?
Usually, you can ask FEMA for a LOMA if surveyed elevations show the building near Groesbeck is above the BFE; it starts with an elevation survey.
Is flood insurance mandatory near Groesbeck?
In most cases, for a building near Groesbeck in an A or V zone with a federally backed or regulated mortgage, it's generally required, in communities that take part in the NFIP.
Is the parcel map a survey near Kosse?
The map near Mart is approximate, so a fence may sit off the line
Open the official Limestone 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.