Blog · October 14, 2026 · Utah
Juab County Flood Zone Map, Utah
FEMA's free flood maps and the Juab County parcel viewer, used together for property near Levan.
Main page: Juab County, UT GIS & Parcel Viewer (official map link, Juab County facts and neighboring maps).
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A Juab County flood zone map check belongs in the due diligence for any Juab County property, from a house lot in Eureka to farm ground near Rocky Ridge. Here's how to read FEMA's map for a Juab County, UT property and match it to the parcel record.
Below are the FEMA links, a plain reading of the zone labels, notes on where water shapes land around Eureka, and short answers to common questions.
Look up the Juab County flood zone map step by step
The authoritative source for a Juab County flood zone map is FEMA, so begin at the FEMA Flood Map Service Center. If a property near Santaquin has no street number yet, search the nearest road and pan to it. On acreage outside Mona, FEMA's National Flood Hazard Layer viewer draws the zones over aerial imagery; zoom to the property near Santaquin and click. Next, the Utah State Parcels viewer confirms which Juab County parcel you're looking at. The Juab County record gives the parcel identifier and legal description that an insurer or lender near Mona may ask for.
Opening the Juab County parcel viewer
There's no separate Juab County parcel site to hunt for; the Utah State Parcels viewer carries the county's parcels along with the rest of Utah. Most people track down their Juab County tract fastest by searching an address in Eureka, then clicking the outline. For a backup route to the map covering Eureka, our Juab County directory entry keeps the link current.
Tracts that cross the Juab County line
Near the edge of the county, check the next map over: White Pine County, NV, Millard County, Sanpete County, Tooele County, and Utah County all border it. Our Utah page links each map neighboring Juab County.
Zone A, AE and X in plain English
Any Juab 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). A surveyor working near Mona uses the base flood elevation printed for AE zones; unnumbered A zones don't have one. Land near Santaquin in shaded X (Zone B on older maps) is moderate risk, between the 1-percent and 0.2-percent annual chance lines. Unshaded Zone X near Santaquin is minimal risk.
The lay of the land around Nephi
Nephi is the county seat, and Eureka, Mona, Santaquin, and Levan are among the other towns on the county map. Unincorporated communities in Juab County, including Callao, Goshute, and Ironton, show up as small groups of parcels along the roads. Census Bureau estimates put Juab County at about 13,023 residents in 2023 on about 3,392 square miles of land. Beyond the town lots in Rocky Ridge, expect big rural parcels across the county. Landforms such as the Juab Valley shape where roads and homesites fall in Juab County.
Low ground and small streams around Mona
A low spot on a Juab County tract outside any mapped zone, which is why it's worth walking the ground after a heavy rain.
Flood insurance and building rules in Juab County
The zone displays up again when a loan on a house near Santaquin is underwritten. Where a building in Mona sits in a Special Flood Hazard Area and is financed by a regulated or federally insured lender, federal rules call for flood insurance, as long as Juab County or the town participates in the NFIP. In Zone X near Mona, coverage is optional, although some lenders require it anyway. When a Juab County homesite is on a rise inside a mapped zone, FEMA's LOMA process allows a review, supported by elevation data from a licensed land surveyor. New construction in a Juab County Special Flood Hazard Area usually needs a floodplain permit, so call the county or the town office in Mona before work starts.
Where Juab County land records are kept
For land near Nephi, the deed itself lives in the county recording office, and the map is an index to it. Easements and access rights near Levan live in recorded documents, so read the deed, not just the county map.
Juab County flood zones questions
Is there a floodplain layer in the Utah State Parcels viewer?
Check the layer list in the Utah State Parcels viewer; if Juab County includes a floodplain layer, confirm the zone on FEMA's map anyway.
My lot in Nephi displays Zone AE. What does that mean?
Zone AE on a lot in Nephi is a mapped 100-year floodplain with a base flood elevation, so mandatory insurance rules apply to federally backed mortgages.
What does 100-year flood mean for Juab County land?
Not at all; a Juab County tract in that zone faces a 1-percent annual chance, not a once-a-century schedule.
How do I challenge a flood zone for a lot in Nephi?
FEMA reviews requests such as a LOMA for Juab County properties; start with an elevation certificate.
Who prepares an elevation certificate for a house in Nephi?
A licensed land surveyor or engineer prepares it, and the building office serving Nephi may already have one on file for newer construction.
Open the official Juab County, UT parcel map Juab 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.