Blog · October 14, 2026 · Wyoming
Johnson County Flood Zone Map, Wyoming: a practical guide
The zone on FEMA's map affects insurance, building and resale near Bighorn National Forest.
Main page: Johnson County, WY GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Ahead of any purchase around Buffalo, look at the Johnson County flood zone map: a mapped flood zone changes insurance, building rules and resale. In this Johnson County guide: the free FEMA tools, what each zone label means, lender insurance rules and how to challenge a map that looks wrong.
Where the Johnson County flood zone map lives
For a parcel near Mayoworth, flood zones come from FEMA's Flood Map Service Center: enter the street address, then open the map view for that panel. Vacant ground around Kaycee is still easy to locate: search the nearest road then click the parcel area.
Opening the official parcel viewer
Go first to the Johnson County parcel viewer; it covers every tax parcel from Saddlestring to Bighorn National Forest. For acreage around Buffalo, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. If the land is near Linch, write down the parcel ID while you have it open; each records desk in the county will want it.
Beyond the mapped zones
Low-lying fields near Sussex may not have detailed mapping, so walk the land after rain. Wetlands near Linch can limit building even outside a flood zone; check the National Wetlands Inventory mapper for a first look.
Johnson County in a few facts
Buffalo is the county seat, home to the main records offices. Smaller places on the map include Kaycee, Linch, Mayoworth, and Saddlestring. Around 8,759 people live in Johnson County (Census estimate, 2023) across some 4,154 square miles. Johnson County dates to 1875, so old deeds can run back a long way. Landmarks such as Bighorn National Forest help you orient on the aerial around Bighorn National Forest.
Who handles what
For assessment questions about property around Mayoworth are handled by the County Assessor, the office behind the parcel record. Questions about what you can build around Sussex need the planning or permitting office, and the answer depends on jurisdiction.
What the zone letters mean
Zone AE includes a base flood elevation (BFE), which plain A zones lack; builders around Bighorn National Forest design to it. For a tract near Kaycee, shaded Zone X is moderate risk, roughly the 100- to 500-year range; plain X, or C on older maps, means minimal mapped risk.
Parcel lines plus flood zones
Where a floodplain cuts across acreage near Mayoworth, the structure's footprint is the key question.
Money questions tied to the zone
For a structure inside an A or V zone and the loan is federally backed or regulated, mandatory purchase rules apply where the community participates in the National Flood Insurance Program, whether the land is near Saddlestring or elsewhere in the county. New construction in a floodplain near Mayoworth usually means extra permit review; ask the local floodplain administrator before you plan.
Reading the legal description
Wyoming uses the Public Land Survey System, so deeds around Bighorn National Forest reference sections and townships. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though real sections near Kaycee vary in size. Copy the legal description from the record for the parcel near Linch for any title or survey request.
Taking the map into the field
Most viewers work in a phone browser, handy when you're parked on a road near Bighorn National Forest, but coverage can be spotty out of town. A saved image of the lot near Linch and its lines helps when you meet an owner or agent.
Where the recorded documents are
If the land is near Linch, the map is an index, not the title: recorded deeds, plats and easements for parcels in the county are kept by the County Clerk. On ground around Kaycee, use the book and page shown in the record panel so staff can find the deed fast.
A word on accuracy
With a lot near Sussex, listed acreage is an estimate; only a licensed surveyor can set the real lines on the ground. On ground around Saddlestring, owner names and values update on a schedule, so a deed recorded last month may not show yet.
What to request from a seller
For a tract near Bighorn National Forest, ask the listing agent for any Elevation Certificate before closing; getting a quote early keeps the budget honest.
Frequently asked
Does the county parcel map show flood zones for land near Bighorn National Forest?
For most people, the parcel map near Linch might show FEMA zones; confirm a lot near Bighorn National Forest on FEMA's map either way.
When is flood insurance required near Saddlestring?
Short answer: lenders generally require it for buildings near Kaycee in a Special Flood Hazard Area when the loan is federally regulated or insured, in communities that take part in the NFIP.
How often are flood maps updated around Mayoworth?
In most cases, a new study can move a zone line near Linch; your community is notified before changes take effect.
Where do I find the BFE for a lot near Mayoworth?
Good question; the BFE is printed in AE zones on FEMA's map; surveyors near Bighorn National Forest use it often.
Is the parcel map a survey near Buffalo?
For land near Mayoworth, parcel lines are tax drawings, not surveys.
Open the official Johnson County, WY 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.