Blog · October 14, 2026 · Texas
Using the La Marque Flood Zone Map
Flood zones are set by FEMA, and checking one near Texas City takes a few minutes.
Main page: Galveston County, TX GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Before you buy or build near Dickinson, pull up the La Marque flood zone map: FEMA's zone label affects insurance, permits and resale. This La Marque guide covers: the free FEMA tools, what each zone label means, when insurance is required and how to challenge a map that looks wrong.
Getting started with the La Marque flood zone map
Start with FEMA's Flood Map Service Center: type an address near Santa Fe, and pick the FIRMette or map view. A tract near Dickinson without an address is still easy to locate: zoom in from the nearest road and click inside the land.
The free map to start with
Begin with the Galveston County ArcGIS parcel map; it includes every assessed parcel from Tiki Island to Hitchcock. If you only know roughly where the land is, pan along the nearest road and click the parcel itself, which applies near Texas City as much as anywhere. In and around Bayou Vista, a pop-up or side panel typically gives the owner of record, assessed acreage, a parcel ID and sometimes recent sales.
Backing up the map with records
The map is an index, not the title: deeds, plats and easements for land near Texas City are kept by the County Clerk. Inherited tracts near Tiki Island can sit on several deeds, so a title company is worth hiring before a purchase.
Taking the map into the field
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Texas City, so load it before you lose signal. A screenshot of the parcel near Texas City with its ID helps when you meet an owner or agent.
La Marque and the county around it
La Marque sits in Galveston County, Texas, so its parcels are on the county's map. Near Santa Fe, the municipality handles matters such as zoning, permits and utilities for lots inside the boundary, but the county runs assessment and recording. Acreage past the city limits near Texas City generally answers to county rules instead.
Beyond the mapped zones
Low-lying fields near Hitchcock aren't always studied in detail, so walk the land after rain. Wet ground around Tiki Island is a separate issue from flood zones; the National Wetlands Inventory mapper shows mapped wetlands.
A short flood checklist
Request whether the home has flooded on the property near Hitchcock; getting a quote early keeps the budget honest.
What the zone letters mean
For land near Tiki Island, any A or V zone are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any year. Closer to Bayou Vista, shaded Zone X is moderate risk, between the 1% and 0.2% annual chance floods; unshaded X means minimal mapped risk.
How land is described here
Older tracts around Hitchcock commonly use metes-and-bounds descriptions, listing bearings, distances and landmarks. Subdivision lots in Santa Fe are typically described by lot and block, making them easier to find. Copy the legal description from the record for the parcel near Hitchcock for any title or survey request.
Neighboring parcel maps
Galveston County touches Brazoria County, Chambers County, and Harris County, all with their own assessor records. Ground near Texas City that runs to the line may be split in two county records, so look at the neighboring map too. For land near Santa Fe, the Platbookmapper state page lists every bordering county map across Texas.
Places you'll see on the map
Galveston holds the county offices, home to the main records offices. You'll also find Bayou Vista, Hitchcock, Santa Fe, and Dickinson, each with its own cluster of lots. Around 361,744 people live in Galveston County (Census estimate, 2023) spread over some 379 square miles. Galveston County was organized in 1838, and some chains of title near Tiki Island are long. Places such as Clear Lake are easy to spot when you zoom out from Texas City.
Use the county map alongside FEMA
FEMA doesn't draw property lines, so pair it with the Galveston County ArcGIS parcel map to see exactly which lot near Hitchcock you're looking at.
Lenders and permits
For a home near Bayou Vista, an Elevation Certificate from a surveyor helps: it compares the building to the BFE. Building or adding on near Dickinson in a mapped zone usually means extra permit review; call the permitting office before you plan.
Questions about the La Marque flood zone map
What is a LOMA around Texas City?
It depends, but you can ask FEMA for a LOMA if surveyed elevations show the building near Dickinson is above the BFE; a surveyor's elevation data supports it.
Why did my flood zone near Texas City change?
Generally, a new study can move a zone line near Hitchcock; check the effective date on the panel.
What is a base flood elevation around Dickinson?
For most people, a BFE near Dickinson tells builders how high the lowest floor should be, and an Elevation Certificate compares the building to it.
What does Zone AE mean near Dickinson?
Good question; an AE zone has a 1% annual chance of flooding and a base flood elevation, which shapes building rules near Tiki Island.
Is there an app for the parcel map near Bayou Vista?
The map near Hitchcock usually works on a phone; screenshots help offline.
Open the official Galveston 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.