Blog · October 14, 2026 · Tennessee
Washington County Flood Zone Map in Tennessee
Look up any Washington County address on FEMA's flood map, read the zone, and match it to the parcel record for land around Watauga.
Main page: Washington County, TN GIS & Parcel Viewer (official map link, Washington County facts and neighboring maps).
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Land along Nolichucky River and the flats outside Watauga are where a Washington County flood zone map lookup matters most. For any tract in Washington County, Tennessee, the answer affects insurance, permits and resale.
Below are the FEMA links, a plain reading of the zone labels, notes on where water shapes land around Watauga, and short answers to common questions.
Where to see the official Washington County flood zone map
FEMA's official flood maps for Washington County are free at the FEMA Flood Map Service Center. If a piece of ground near Watauga has no street number yet, search the nearest road and pan to it. For an irregular lot near Watauga, FEMA's National Flood Hazard Layer viewer draws the zones over aerial imagery; zoom to the piece of ground near Watauga and click. Switch to the Tennessee Property Viewer and find the same piece of ground near Watauga. Laying the county parcel outline beside the FEMA shading displays whether a homesite near Watauga sits above or inside the zone.
The county map you'll pair it with
There's no separate Washington County parcel site to hunt for; the Tennessee Property Viewer carries the county's parcels along with the rest of Tennessee. Choose Washington County from the county list first, then search a Jonesborough address or an owner name. Our Washington County, TN page keeps the official link and the maps next door to Watauga in one place.
The lay of the land around Jonesborough
Jonesborough is the county seat, and Johnson City and Watauga are among the other towns on the county map. Smaller places such as Embreeville, Fall Branch, and Gray appear on the Washington County map as little clusters of lots. Roughly 326 square miles of land and about 138,420 residents (2023 estimate) make up Washington County. Much of Washington County is built out, so most clicks near Johnson City land on platted lots. The Ridge-and-Valley Appalachians and Blue Ridge Mountains give parts of Washington County parcel shapes that follow the terrain. With a founding date of 1777, Washington County has long chains of title on some rural tracts.
Where Washington County land records are kept
For land near Watauga, the deed itself lives in the county recording office, and the map is an index to it. Easements and access rights near Jonesborough live in recorded documents, so read the deed, not just the county map.
What the flood zone letters mean
For a lot in Johnson City, the label matters more than the color: A and V zones are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any given year (the base or 100-year flood). Zone AE near Watauga means FEMA published a base flood elevation; plain Zone A means no detailed elevation was studied. Shaded Zone X around Johnson City sits in the moderate band between the 100-year and 500-year floods. Clear, unshaded X near Johnson City is outside the 500-year floodplain.
Creeks, rivers and low ground in Washington County
Parcels touching Nolichucky River deserve a FEMA check before anything else in Washington County. On many tracts near Johnson City, the zone covers the low ground by the water while the homesite near the road is outside it. Small streams and ditches near Johnson City may not be studied in detail can still flood; FEMA says moderate- and low-risk areas still carry risk.
Near the Washington County line
Near the edge of the county, check the next map over: Carter County, Greene County, Hawkins County, Sullivan County, and Unicoi County all border it. Our Tennessee page links each map neighboring Washington County.
What a flood zone means for a Washington County buyer
The zone displays up again when a loan on a house near Watauga is underwritten. If a house near Watauga sits in a Special Flood Hazard Area and secures a loan from a federally regulated or insured lender, the lender must require flood coverage, provided the community near Johnson City takes part in the National Flood Insurance Program. Outside the A zones around Watauga, coverage is optional, although a lender in Tennessee can still ask for it. Where a structure near Johnson City looks higher than the shading suggests, a Letter of Map Amendment request is the formal route, supported by elevation data from a licensed surveyor. Placing fill on low ground near Johnson City has to meet local floodplain rules, and the building office serving Watauga explains the steps.
Washington County, TN: common questions
What if FEMA's map is wrong about my house near Jonesborough?
An owner near Jonesborough can request a Letter of Map Amendment from FEMA with elevation data, usually from a licensed surveyor.
My house near Jonesborough is in Zone X. Is insurance required?
For a Zone X house near Jonesborough, federal rules do not require flood insurance; buying it is still a choice worth pricing.
Do I need a permit to build in the floodplain near Johnson City?
Often, but local floodplain rules apply; ask the county or town building office in Johnson City before you buy.
What does BFE mean on the flood map for Johnson City?
Near Jonesborough, the base flood elevation marks how high the 100-year flood is expected to rise; elevation certificates in Washington County are measured against it.
Who prepares an elevation certificate for a house in Johnson City?
A licensed surveyor or engineer prepares it, and the building office serving Johnson City may already have one on file for newer construction.
Does a 100-year floodplain near Jonesborough flood only once a century?
No, ground around Johnson City mapped that way carries a 1-in-100 chance in any single year, and two floods in one decade near Johnson City are possible.
Open the official Washington County, TN 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.