Blog · October 14, 2026 · Montana
Yellowstone County Flood Zone Map (Montana)
Look up any Yellowstone County address on FEMA's flood map, read the zone, and match it to the parcel record for land around Broadview.
Main page: Yellowstone County, MT GIS & Parcel Viewer (official map link, Yellowstone County facts and neighboring maps).
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A Yellowstone County flood zone map check belongs in the due diligence for any Yellowstone County property, from a house lot in Laurel to farm ground near Broadview. FEMA's free Flood Map Service Center and the Yellowstone County parcel viewer answer it together.
The sections below go from the FEMA search to the Yellowstone County parcel record, then cover insurance, permits and map changes near Broadview.
How to use the Yellowstone County flood zone map
Open the FEMA Flood Map Service Center and type a county street address, say one in Broadview. Download the FIRM panel FEMA lists as effective for that part of Yellowstone County. If the PDF panel for Yellowstone County is hard to read, FEMA's National Flood Hazard Layer viewer draws the zones over aerial imagery, so you can see if the shading reaches a house near Billings. Switch to the Yellowstone County parcel viewer and track down the same piece of ground near Billings. Laying the county parcel outline beside the FEMA shading shows if a homesite near Billings sits above or inside the zone.
Search Yellowstone County parcels by owner, address or ID
For land around Laurel, open the Yellowstone County parcel viewer; it's the map Yellowstone County itself publishes. Most people track down their Yellowstone County tract fastest by searching an address in Laurel, then clicking the outline. Our Yellowstone County, MT page keeps the official link and the maps next door to Laurel in one place.
High, moderate and minimal risk in Yellowstone County
For a lot in Broadview, 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). A surveyor working near Broadview uses the base flood elevation printed for AE zones; unnumbered A zones do not have one. Land near Billings in shaded X (Zone B on older maps) sits in the moderate band between the 100-year and 500-year floods. Unshaded X (or C) on the Yellowstone County panel means minimal risk.
Low ground and small streams around Broadview
A low spot on a Yellowstone County tract outside any mapped zone can still flood; FEMA says moderate- and low-risk areas still carry risk.
When the map affects a deal
Insurance is the practical stake for a Yellowstone County buyer. If a barn or house outside Broadview falls inside an A or V zone and carries a federally backed mortgage, a flood policy becomes a loan condition; that applies where the local government around Billings is in the National Flood Insurance Program. In Zone X near Broadview, coverage is optional; pricing a policy for land near Billings is still worth a call. Where a structure near Broadview looks higher than the shading suggests, the owner can ask FEMA for a Letter of Map Amendment (LOMA), generally backed by an elevation certificate from a surveyor who works in the county. Building or filling inside a mapped zone near Broadview often requires a permit and an elevation check; the county floodplain administrator can say what applies.
A short buyer checklist for Billings
For a house near Broadview, ask the seller for any elevation certificate on file and the current flood insurance declarations page. Then call an insurance agent who writes policies around Billings and get a quote using the zone and the county parcel address.
Near the Yellowstone County line
A farm near the county line can carry separate records in Big Horn County, Carbon County, and Golden Valley County as well. Every map bordering Yellowstone County is listed on our Montana directory.
Quick answers for Yellowstone County
Can a flood zone in Yellowstone County be changed?
FEMA reviews requests such as a LOMA for Yellowstone County properties; start with an elevation certificate.
What does 100-year flood mean for Yellowstone County land?
No; land near Laurel in the 100-year floodplain carries a 1-in-100 chance in any single year, so floods can come in back-to-back years.
My house near Laurel is in Zone X. Is insurance required?
Not under federal rules; Zone X in Yellowstone County is outside the Special Flood Hazard Area, though a lender can still require coverage.
Is Zone AE near Laurel high risk?
For a Yellowstone County parcel, Zone AE means a Special Flood Hazard Area with a 1-percent annual chance of flooding and a published base flood elevation.
Where do I get an elevation certificate in Yellowstone County?
Hire a licensed surveyor or engineer who works in Yellowstone County; ask the local floodplain office first in case one exists.
Is there a floodplain layer in the Yellowstone County parcel viewer?
Check the layer list in the Yellowstone County parcel viewer; if Yellowstone County includes a floodplain layer, confirm the zone on FEMA's map anyway.
Open the official Yellowstone County, MT parcel map Yellowstone 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.