Blog · October 14, 2026 · Texas
Washington County Flood Zone Map, Texas
FEMA's free flood maps and the Washington County parcel viewer, used together for property near Brenham.
Main page: Washington County, TX GIS & Parcel Viewer (official map link, Washington County facts and neighboring maps).
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A Washington County flood zone map check belongs in the due diligence for any Washington County property, from a house lot in Berlin to farm ground near Burton. You can check it yourself for any Berlin address in a few minutes.
Below are the FEMA links, a plain reading of the zone labels, notes on where water shapes land around Berlin, and short answers to common questions.
How to check the Washington County flood zone map
Start at the FEMA Flood Map Service Center and enter the property address in Berlin or anywhere else in the county. Search returns the effective FIRM panel for the spot in Washington County, plus any pending changes FEMA has posted. For an irregular lot near Burton, the National Flood Hazard Layer viewer is easier to use and reports the zone wherever you click near Berlin. Switch to the Washington County parcel viewer and find the same parcel near Burton. If the Washington County viewer has a floodplain layer, treat it as a convenience copy and confirm on FEMA's map.
Opening the Washington County parcel viewer
Washington County publishes its parcels on the Washington County parcel viewer, free to use for a lot in Burton or a parcel near Berlin. Click any Washington County parcel near Burton to open its record: owner, parcel ID and assessed acreage are most frequently listed. Our Washington County, TX page keeps the official link and the maps next door to Berlin in one place.
Washington County at a glance
Brenham is the county seat, and Burton are among the other towns on the county map. Smaller places such as Berlin, Chappell Hill, and Greenvine appear on the county map as little clusters of lots. Washington County had an estimated 37,007 people in 2023 (Census Bureau), spread across about 604 square miles. The Washington County map mixes subdivision lots near Brenham with farm and wooded tracts farther out.
High, moderate and minimal risk in Washington County
Any Washington County parcel shaded as Zone A, AE, AH or AO sits in what FEMA calls a Special Flood Hazard Area, land with a 1-percent chance of flooding in any given year (the base or 100-year flood). Zone AE near Burton means FEMA published a base flood elevation; plain Zone A means no detailed elevation was studied. Land near Burton in shaded X (Zone B on older maps) falls between the base flood and the 500-year flood. Unshaded Zone X near Burton is minimal risk.
Unmapped creeks in Washington County
A creek near Burton that lists no detailed zone, so treat an unmapped channel as a reason to ask questions, not proof the ground stays dry.
Where Washington County land records are kept
Deeds and plats behind the Washington County map are kept by the county's recording office; the official Washington County website names which office that is. For a parcel near Brenham, the appraised value is set by the county appraisal district, which Texas law keeps separate from county government. Copy the parcel ID and legal description from the county record before you request a deed for land near Brenham.
Flood insurance and building rules in Washington County
Lenders watch the zone closely on Washington County properties. When a Washington County home falls inside an A or V zone and carries a federally backed mortgage, flood insurance is mandatory, as long as Washington County or the town participates in the NFIP. Outside the A zones around Burton, insurance is a choice, not a mandate; pricing a policy for land near Burton is still worth a call. When a Washington County homesite is on a rise inside a mapped zone, a Letter of Map Amendment request is the formal route, supported by elevation data from a licensed land surveyor. Building or filling inside a mapped zone near Berlin has to meet local floodplain rules, so call the county or the town office in Berlin before work starts.
Near the Washington County line
Washington County borders Austin County, Brazos County, Burleson County, Fayette County, and Grimes County, and each keeps its own parcel map and records. Every map bordering Washington County is listed on our Texas directory.
Washington County flood zones questions
Is there a floodplain layer in the Washington County parcel viewer?
Some county viewers carry a flood layer, but FEMA's Flood Map Service Center is the official source for Washington County.
What does 100-year flood mean for Washington County land?
No; land near Burton in the 100-year floodplain has a 1-percent chance of flooding every year, so floods can come in back-to-back years.
Do I need a permit to build in the floodplain near Brenham?
Often, but local floodplain rules apply; ask the county or town building office in Brenham before you buy.
How can I check a Washington County, TX flood zone?
Look it up at FEMA's Flood Map Service Center, then match the parcel lines in the county parcel viewer; for land near Burton, a zone starting with A or V is high risk.
What does Zone AE mean on a Washington County flood map?
For a Washington County parcel, Zone AE means a Special Flood Hazard Area with a 1-percent annual chance of flooding and a published base flood elevation.
Open the official Washington County, TX parcel map Washington County 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.