Blog · October 14, 2026 · Texas
Galveston Flood Zone Map: checking a property's flood zone
The zone on FEMA's map affects insurance, building and resale near Bayou Vista.
Main page: Galveston County, TX GIS & Parcel Viewer (official map link, county facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
Ahead of any purchase around Tiki Island, pull up the Galveston flood zone map: FEMA's zone label affects insurance, building rules and resale. Covered here for Galveston: finding the address on FEMA's map, reading the zone codes, and pairing it with the Galveston County ArcGIS parcel map.
Where the Galveston flood zone map lives
The official source is FEMA's Flood Map Service Center: type an address near Hitchcock, then open the map view for that panel. Vacant ground around La Marque can still be found: zoom in from the nearest road then click the parcel area.
Getting to the right map
The official parcel map for this area is the Galveston County ArcGIS parcel map, and it opens in a browser with no account. In and around Hitchcock, type a street address, an owner's name or a parcel number, and the matching parcel lights up. Around Tiki Island, the parcel card usually lists the owner of record, acreage on the tax roll, the parcel number and in many cases the last transfer.
On site with the map
The parcel map usually runs in a mobile browser, useful out on a road near Jamaica Beach, so load it before you lose signal. A printout of the tract near Tiki Island keeps working without signal.
Galveston and the county around it
Galveston is part of Galveston County, Texas, so its parcels are on the county's map. Galveston is also the county seat, which puts the County Clerk close by. With a lot near Tiki Island, the municipality handles things like zoning, permits and utilities for lots inside the boundary, while the county keeps the tax map. Lots just outside the city limits near Tiki Island often falls under county rules rather than the town's.
Next door to Galveston County
Galveston County borders Brazoria County, Chambers County, and Harris County, and each of those keeps its own parcel map. A tract near the line by Hitchcock may be split in two county records, so open the neighboring map before you assume the acreage. On ground around Jamaica Beach, our state page lists each bordering county map for Texas.
How land is described here
Rural deeds near Tiki Island commonly use metes-and-bounds descriptions, which trace the boundary call by call. Town lots near Santa Fe are typically described by lot and block, which is simpler to follow. Copy the legal description from the record for the parcel near Jamaica Beach when you talk to a surveyor.
Reading A, AE and X
Zone AE comes with a base flood elevation, while plain Zone A does not; surveyors near La Marque use that number. If the land is near Hitchcock, minimal risk is not no risk: according to FEMA, floods happen outside mapped zones too.
Use the county map alongside FEMA
FEMA doesn't draw property lines, so check the Galveston County ArcGIS parcel map too for the outline of the tract near Jamaica Beach.
Questions to ask before you buy
Ask the seller about past flood claims on the property near Bayou Vista; getting a quote early avoids surprises.
Recorded documents worth pulling
The map is an index, not the title: deeds, plats and easements for land near Tiki Island sit with the County Clerk. For a home near Hitchcock, use the book and page from the tax record so staff can find the deed fast.
Money questions tied to the zone
With a lot near La Marque, get the Elevation Certificate if one exists: it compares the building to the BFE. Remodeling a house in a zone near Hitchcock usually means extra permit review; call the permitting office before you plan.
Offices that can help
For assessment questions about property around Tiki Island belong with the appraisal district, which maintains the tax roll. Zoning, permits and septic questions near La Marque need the planning or permitting office, town or county, depending on location.
Limits of the parcel data
The acreage figure is an assessed number; just a licensed surveyor sets the real lines on land around Jamaica Beach. For a home near Tiki Island, records update in batches, so a deed recorded last month might lag behind.
Water near La Marque
Creeks and ditches near La Marque may not have detailed mapping, so walk the land after rain. Wetlands near Bayou Vista can limit building even outside a flood zone; the National Wetlands Inventory mapper shows mapped wetlands.
Questions about the Galveston flood zone map
How often are flood maps updated in Galveston?
For most people, zones near La Marque can shift when FEMA updates a panel; check the effective date on the panel.
How can I tell if a house near Hitchcock is in a flood zone?
For most people, search the address near La Marque on FEMA's Flood Map Service Center; no account is needed.
What is a base flood elevation in Galveston?
For most people, a BFE near La Marque tells builders how high the lowest floor should be; surveyors near Bayou Vista use it often.
Is AE a high-risk flood zone for land near Jamaica Beach?
An AE zone has a 1% annual chance of flooding and a base flood elevation, so builders near Jamaica Beach design to that elevation.
What's the tax parcel number used for around La Marque?
It's the number the appraisal district uses to track a tract near Jamaica Beach; copy it before you call anyone.
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.