Blog · October 14, 2026 · Texas
Texas City Flood Zone Map: checking a property's flood zone
Flood zones are set by FEMA, and checking one near Tiki Island 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 an offer near Bayou Vista, pull up the Texas City flood zone map: FEMA's zone label affects insurance, permits and resale. In this Texas City guide: locating a parcel on FEMA's map, decoding A, AE and X, and pairing it with the Galveston County ArcGIS parcel map.
Where the Texas City flood zone map lives
Start with FEMA's Flood Map Service Center: type an address near Dickinson, then open the map view for that panel. A tract near Clear Lake Shores without an address is still easy to locate: search the nearest road then click the parcel area.
Pulling up a parcel
Go first to the Galveston County ArcGIS parcel map; it covers each assessed parcel around Dickinson and La Marque. Near Bayou Vista, type a street address, an owner's name or a parcel number, and the matching parcel lights up. For land near Clear Lake Shores, copy the parcel ID from that panel; each records desk in the county asks for it first.
A quick look at the area
Galveston is the county seat, which is where the courthouse records live. Other places on the map include La Marque, Bayou Vista, Tiki Island, and Dickinson. About 361,744 people call Galveston County home (Census Bureau estimate, 2023) across about 379 square miles. Galveston County was formed in 1838, and some chains of title near Bayou Vista are long. Places such as Clear Lake make handy reference points on the map near Tiki Island.
City limits and county records
Texas City sits in Galveston County, Texas, which means parcel data comes from the county. For a home near Clear Lake Shores, 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 city limits out by Tiki Island often falls under county rules instead.
Water near Kemah
Small streams around Dickinson aren't always studied in detail, so look for water marks and debris lines. Wet ground around Bayou Vista is a separate issue from flood zones; the National Wetlands Inventory mapper shows mapped wetlands.
Taking the map into the field
Most viewers work in a phone browser, handy when you're parked on a road near Bayou Vista, so load it before you lose signal. A saved image of the lot near Tiki Island and its lines is a good backup.
Decoding the flood zone labels
For acreage around Bayou Vista, any A or V zone are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any year. Near Clear Lake Shores, a shaded X area is moderate risk, between the 1% and 0.2% annual chance floods; plain X, or C on older maps, means minimal mapped risk.
Lining it up with the parcel map
FEMA's map shows zones but not ownership, so pair it with the Galveston County ArcGIS parcel map to confirm you have the right parcel near La Marque.
Before you lean on the lines
Listed acreage is a tax-roll number; only a licensed surveyor sets the real lines on land around Dickinson. Out toward Dickinson, records update in batches, so a deed recorded last month might lag behind.
Which office to call
For assessment questions about property around Kemah are handled by the appraisal district, since that office keeps the assessment data. Zoning, permits and septic questions near Bayou Vista go to planning, building or health offices, and the answer depends on jurisdiction.
Recorded documents worth pulling
The map is an index, not the title: deeds, plats and easements covering ground around Tiki Island sit with the County Clerk. Long-held tracts near Tiki Island may sit on many deeds, so a title company earns its fee if money is changing hands.
What to request from a seller
Ask the seller about past flood claims for the house near Tiki Island; an insurance quote early avoids surprises.
Money questions tied to the zone
If the land is near Clear Lake Shores, ask for an Elevation Certificate: it compares the building to the BFE. Building or adding on near Bayou Vista in a mapped zone usually means extra permit review; ask the local floodplain administrator early.
Questions about the Texas City flood zone map
What is a base flood elevation for land near Clear Lake Shores?
Good question; the base flood elevation is the water level expected in the 1% annual chance flood; surveyors near Bayou Vista use it often.
Is AE a high-risk flood zone for land near Bayou Vista?
Generally, an AE zone has a 1% annual chance of flooding and a base flood elevation, so builders near Tiki Island design to that elevation.
Is Zone X safe from flooding in Texas City?
Usually, Zone X near Bayou Vista means moderate (shaded) or minimal (unshaded) mapped risk; many owners buy coverage anyway.
How often are flood maps updated for land near Dickinson?
In most cases, a new study can move a zone line near Tiki Island; your community is notified before changes take effect.
Does the parcel map work on a phone in Texas City?
Most viewers run in a mobile browser; load it before you lose coverage near Tiki Island.
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.