Blog · October 14, 2026 · Kansas
Lyon County Flood Zone Map (Kansas)
Look up any Lyon County address on FEMA's flood map, read the zone, and match it to the parcel record for land around Hartford.
Main page: Lyon County, KS GIS & Parcel Viewer (official map link, Lyon County facts and neighboring maps).
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A Lyon County flood zone map check belongs in the due diligence for any Lyon County property, from a house lot in Allen to farm ground near Neosho Rapids. Here's how to read FEMA's map for a Lyon County, KS property and match it to the parcel record.
Next: FEMA's search tool, the zone labels you'll see for Lyon County, and how the parcel record confirms which tract you're on.
How to check the Lyon County flood zone map
Open the FEMA Flood Map Service Center and type a county street address, say one in Hartford. If a tract around Allen has no street number yet, search the nearest road and pan to it. For an irregular lot near Allen, FEMA's National Flood Hazard Layer viewer draws the zones over aerial imagery; zoom to the tract around Allen and click. Next, the ORKA parcel viewer confirms which Lyon County parcel you're looking at. Match the Lyon County lines and acreage to the FEMA view, since flood maps do not draw property lines in detail.
Finding the tract on the Lyon County map
Lyon County publishes its parcels on the ORKA parcel viewer, which runs on a parcel platform shared by many Kansas counties, free to use for a lot in Americus or a tract around Hartford. Once Lyon County is chosen in ORKA, parcels near Hartford display owner and acreage when clicked. For a backup route to the map covering Hartford, our Lyon County directory entry keeps the link current.
Reading the zones on a Lyon County flood map
On the FIRM covering Lyon County, zones that start with A or V are Special Flood Hazard Areas, meaning FEMA estimates a 1-percent annual chance of flooding. A surveyor working near Hartford uses the base flood elevation printed for AE zones; unnumbered A zones do not have one. Shaded Zone X around Hartford sits in the moderate band between the 100-year and 500-year floods. Clear, unshaded X near Hartford is outside the 500-year floodplain.
Neighboring maps around Lyon County
Near the edge of the county, check the next map over: Chase County, Coffey County, Greenwood County, Morris County, and Osage County all border it. Our Kansas page links each map neighboring Lyon County.
Unmapped creeks in Lyon County
A creek near Allen that displays no detailed zone can still flood; FEMA says moderate- and low-risk areas still carry risk.
Getting oriented in Lyon County, KS
Town lots cluster around Emporia, the county seat, and Admire, Allen, Americus, and Bushong. Smaller places such as Miller and Plymouth appear on the county map as little clusters of lots. Census Bureau estimates put Lyon County at about 32,172 residents in 2023 on roughly 847 square miles of land. Beyond the town lots in Allen, expect big rural parcels across the county. Lyon County was organized in 1862, so deeds for older farms near Americus can run back a long way.
Flood insurance and building rules in Lyon County
Lenders watch the zone closely on Lyon County properties. When a structure near Allen sits in a Special Flood Hazard Area and is financed by a regulated or federally insured lender, federal rules call for flood insurance under the Flood Disaster Protection Act, wherever the community joins the NFIP. For a county home in shaded or unshaded X, coverage is optional; pricing a policy for land near Allen is still worth a call. If a building near Allen sits above the flood line, FEMA's LOMA process allows a review, supported by elevation data from a licensed surveyor. Adding on to a house near Allen inside the zone generally needs a floodplain permit; the county floodplain administrator can say what applies.
Deeds and plats behind the Lyon County map
For land near Americus, the deed itself lives in the county recording office, and the map is an index to it. Copy the parcel ID and legal description from the county record before you request a deed for land near Admire.
Lyon County flood zones questions
My house near Emporia is in Zone X. Is insurance required?
FEMA doesn't require it for a Zone X lot in Americus, but coverage is available and some lenders ask for it.
Where do I get an elevation certificate in Lyon County?
Hire a licensed surveyor or engineer who works in Lyon County; ask the local floodplain office first in case one exists.
What does BFE mean on the flood map for Americus?
Near Emporia, it is the projected water surface in the base flood, and it is printed in AE zones.
How do I challenge a flood zone for a lot in Americus?
For a lot in Americus, hire a surveyor for an elevation certificate, then file a LOMA request with FEMA.
What does 100-year flood mean for Lyon County land?
No; land near Emporia in the 100-year floodplain faces a 1-percent annual chance, not a once-a-century schedule.
Open the official Lyon County, KS parcel map Lyon 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.