Blog · October 14, 2026 · Wyoming
Washakie County Flood Zone Map (Wyoming)
FEMA's free flood maps and the Washakie County parcel viewer, used together for property near Ten Sleep.
Main page: Washakie County, WY GIS & Parcel Viewer (official map link, Washakie County facts and neighboring maps).
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Before you buy a house in Big Trails, add on to a barn near Ten Sleep, or price a lot along the creek bottoms near Big Trails, check the Washakie County flood zone map. FEMA's free Flood Map Service Center and the Washakie County parcel viewer answer it together.
The sections below go from the FEMA search to the Washakie County parcel record, then cover insurance, permits and map changes near Ten Sleep.
Where to see the official Washakie County flood zone map
FEMA's official flood maps for Washakie County are free at the FEMA Flood Map Service Center. Download the FIRM panel FEMA lists as effective for that part of Washakie County. On acreage outside Worland, try FEMA's National Flood Hazard Layer viewer and reports the zone wherever you click near Worland. Then open the Washakie County Beacon site for Washakie County to confirm the parcel near Worland. If the Washakie County viewer has a floodplain layer, treat it as a convenience copy and confirm on FEMA's map.
Search Washakie County parcels by owner, address or ID
For land around Ten Sleep, open the Washakie County Beacon site (Schneider Geospatial's Beacon platform); it's the map Washakie County itself publishes. In the county version, the search page takes an owner, an address or a parcel ID, and each report links back to the map view for the parcel near Big Trails. Bookmark our Washakie County page too; it tracks the official Wyoming link if it moves and lists the maps around Big Trails.
Zone A, AE and X in plain English
On the FIRM covering Washakie County, zones that start with A or V are Special Flood Hazard Areas, land with a 1-percent chance of flooding in any given year (the base or 100-year flood). Where a Washakie County tract shows Zone AE, there's a base flood elevation to compare a building against; in Zone A there is not one. If a Washakie County parcel shows shaded Zone X, it falls between the base flood and the 500-year flood. Clear, unshaded X near Worland is outside the 500-year floodplain.
Near the Washakie County line
Near the edge of the county, check the next map over: Big Horn County, Fremont County, Hot Springs County, Johnson County, and Natrona County all border it. Our Wyoming page links each map neighboring Washakie County.
Low ground and small streams around Worland
A low spot on a Washakie County tract outside any mapped zone, which is why it's worth walking the ground after a heavy rain.
Washakie County at a glance
From Worland, the seat of the county, the map spreads out to Ten Sleep. Smaller places such as Big Trails, Mc Nutt, and South Flat appear on the county map as little clusters of lots. Washakie County had an estimated 7,710 people in 2023 (Census Bureau), spread across about 2,239 square miles. Outside Big Trails, most of the county map is farm, ranch or timber ground with large, irregular tracts.
What a flood zone means for a Washakie County buyer
The zone shows up again when a loan on a house near Big Trails is underwritten. When a structure near Big Trails falls inside an A or V zone and is financed by a regulated or federally insured lender, federal rules call for flood insurance, provided the community near Worland takes part in the National Flood Insurance Program. Outside the A zones around Big Trails, insurance is a choice, not a mandate, though a lender in Wyoming can still ask for it. When a county homesite is on a rise inside a mapped zone, a Letter of Map Amendment request is the formal route; a surveyor near Big Trails can supply the elevation data. Placing fill on low ground near Worland has to meet local floodplain rules, and the building office serving Big Trails explains the steps.
Deeds and plats behind the Washakie County map
Deeds and plats behind the Washakie County map are kept by the county's recording office; the official Washakie County website names which office that is. Copy the parcel ID and legal description from the county record well before you request a deed for land near Big Trails.
Quick answers for Washakie County
Is my Ten Sleep address in a flood zone?
Look it up at FEMA's Flood Map Service Center, then match the parcel lines in the Washakie County Beacon site; for land near Big Trails, a zone starting with A or V is high risk.
What does 100-year flood mean for Washakie County land?
No, ground around Ten Sleep mapped that way faces a 1-percent annual chance, not a once-a-century schedule.
Is Zone AE near Big Trails high risk?
Yes, a parcel near Big Trails in Zone AE is high risk: a 1-percent-annual-chance floodplain where FEMA lists a base flood elevation.
Is there a floodplain layer in the Washakie County Beacon site?
Check the layer list in the Washakie County Beacon site; if Washakie County includes a floodplain layer, confirm the zone on FEMA's map anyway.
What is a base flood elevation for a Washakie County property?
On the map covering Ten Sleep, the base flood elevation marks how high the 100-year flood is expected to rise; elevation certificates in Washakie County are measured against it.
Can I build in a flood zone in Washakie County?
Often, but local floodplain rules apply; ask the county or town building office in Ten Sleep well before you buy.
Open the official Washakie County, WY parcel map Washakie 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.