Blog · October 14, 2026 · Alaska
The Denali Borough Flood Zone Map: an Alaska guide
How to check if a property in Denali Borough sits in a FEMA flood zone, and what the answer means for a buyer near Healy.
Main page: Denali Borough, AK GIS & Parcel Viewer (official map link, Denali Borough facts and neighboring maps).
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Is that lot in Healy in a flood zone? The Denali Borough flood zone map answer comes from FEMA, and it's free to look up. For any tract in Denali Borough, Alaska, the answer affects insurance, permits and resale.
We'll cover finding a Denali Borough address on FEMA's map, what Zone A, AE and X mean, how the borough viewer fits in, and what to do if the map looks wrong.
How to use the Denali Borough flood zone map
The authoritative source for a Denali Borough flood zone map is FEMA, so begin at the FEMA Flood Map Service Center. Search returns the effective FIRM panel for the spot in Denali Borough, plus any pending changes FEMA has posted. For an interactive view of the borough, FEMA's National Flood Hazard Layer viewer draws the zones over aerial imagery and reports the zone wherever you click near Anderson. Next, the Alaska Statewide Parcels layer in ArcGIS Map Viewer confirms which Denali Borough parcel you're looking at. If the Denali Borough viewer has a floodplain layer, treat it as a convenience copy and confirm on FEMA's map.
Step one: the free Denali Borough viewer
There's no separate Denali Borough parcel site to hunt for; the Alaska Statewide Parcels layer in ArcGIS Map Viewer carries the borough's parcels along with the rest of Alaska. Click any Denali Borough parcel near Anderson to open its record: owner, parcel ID and assessed acreage are most commonly listed. If the official address for the Denali Borough, AK map ever changes, our directory page carries the current link for Anderson and the rest of the borough.
Denali Borough land records
Deeds and plats behind the Denali Borough map are kept by the borough's recording office; the official Denali Borough website names which office that is. Easements and access rights near Anderson live in recorded documents, so read the deed, not just the borough map.
What the flood zone letters mean
Any Denali Borough parcel shaded as Zone A, AE, AH or AO sits in what FEMA calls a Special Flood Hazard Area, defined by a 1-percent annual chance of being flooded. Zone AE near Healy means FEMA published a base flood elevation; plain Zone A means no detailed elevation was studied. If a Denali Borough parcel lists shaded Zone X, it falls between the base flood and the 500-year flood. Unshaded X (or C) on the Denali Borough panel means minimal risk.
Low ground and small streams around Anderson
Small streams and ditches near Anderson may not be studied in detail, which is why it's worth walking the ground after a heavy rain.
Tracts that cross the Denali Borough line
Near the edge of the borough, check the next map over: Fairbanks North Star Borough, Matanuska-Susitna Borough, Southeast Fairbanks Census Area, and Yukon-Koyukuk Census Area all border it. Every map bordering Denali Borough is listed on our Alaska directory.
When the map affects a deal
The zone lists up again when a loan on a house near Healy is underwritten. If a barn or house outside Anderson falls inside an A or V zone and is financed by a regulated or federally insured lender, flood insurance is mandatory, as long as Denali Borough or the town participates in the NFIP. Outside the A zones around Healy, insurance is a choice, not a mandate, although some lenders require it anyway. If a building near Healy sits above the flood line, FEMA's LOMA process allows a review; a surveyor near Healy can supply the elevation data. Building or filling inside a mapped zone near Anderson commonly requires a permit and an elevation check, so call the borough or the town office in Anderson before work starts.
Denali Borough at a glance
Healy is the borough seat, and Anderson are among the other towns on the borough map. Unincorporated communities in the borough, including Cantwell, Denali Park, and Ferry, show up as small groups of parcels along the roads. Denali Borough had an estimated 1,584 people in 2023 (Census Bureau), spread across about 12,641 square miles. Outside Healy, most of the borough map is farm, ranch or timber ground with large, irregular tracts. With a founding date of 1990, Denali Borough has long chains of title on some rural tracts.
Denali Borough flood zones questions
What does 100-year flood mean for Denali Borough land?
No, ground around Cantwell mapped that way carries a 1-in-100 chance in any single year, not a once-a-century schedule.
What does BFE mean on the flood map for Cantwell?
Near Healy, the BFE is the height floodwater is expected to reach in the 1-percent-annual-chance flood, and a surveyor compares the building near Cantwell to it.
Where do I get an elevation certificate in Denali Borough?
Hire a professional surveyor or engineer who works in Denali Borough; ask the local floodplain office first in case one exists.
Can a flood zone in Denali Borough be changed?
FEMA reviews requests such as a LOMA for Denali Borough properties; start with an elevation certificate.
How do I know if a property in Denali Borough is in a flood zone?
Look it up at FEMA's Flood Map Service Center, then match the parcel lines in the Alaska Statewide Parcels layer in ArcGIS Map Viewer; for land near Healy, a zone starting with A or V is high risk.
Open the official Denali Borough, AK parcel map Denali Borough 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.