Blog · October 14, 2026 · Alaska
Reading the Dillingham Census Area Flood Zone Map for a parcel
The zone on FEMA's map affects insurance, building and resale near Portage Creek.
Main page: Dillingham Census Area, AK GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Looking at a lot near Dillingham? A quick look at the Dillingham Census Area flood zone map shows whether the lot falls inside a mapped floodplain, and the lookup is free. What this Dillingham Census Area guide covers: finding the address on FEMA's map, decoding A, AE and X, and pairing it with the Alaska Statewide Parcels layer in ArcGIS Map Viewer.
Where the Dillingham Census Area flood zone map lives
For parcel-by-parcel detail, try the National Flood Hazard Layer viewer, which draws the zones over aerial imagery, for land near New Stuyahok included. Vacant ground around Twin Hills is still easy to locate: pan from the closest town and click inside the land.
The viewer Dillingham Census Area publishes
Go first to the Alaska Statewide Parcels layer in ArcGIS Map Viewer; it maps every tax parcel from Alaska Maritime National Wildlife Refuge to New Stuyahok. When a rural tract has no street number, follow the nearest road on the aerial and select the outline, and that holds around Portage Creek too. For a tract near Aleknagik, copy the parcel ID from that panel; each records desk in the county uses it to find the file.
Reading A, AE and X
Out toward Clark's Point, any A or V zone are Special Flood Hazard Areas, meaning a 1% or greater chance of flooding each year. For acreage around Portage Creek, a shaded X area marks moderate flood hazard, roughly the 100- to 500-year range; unshaded X is minimal risk.
Legal descriptions in Alaska
Alaska is laid out under the Public Land Survey System, which means a tract near Koliganek is described by section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though sections near Twin Hills can be irregular. Write down the legal description for the tract near Dillingham when you talk to a surveyor.
Lining it up with the parcel map
FEMA's map shows zones but not ownership, so pair it with the Alaska Statewide Parcels layer in ArcGIS Map Viewer to confirm you have the right parcel near Manokotak.
Water near New Stuyahok
Low-lying fields near Manokotak aren't always studied in detail, so walk the land after rain. Wet ground around Koliganek is a separate issue from flood zones; check the National Wetlands Inventory mapper for a first look.
What a flood zone means for a buyer
For a tract near Alaska Maritime National Wildlife Refuge, ask for an Elevation Certificate: it compares the building to the BFE. New construction in a floodplain near Manokotak often needs a floodplain permit; call the permitting office before you plan.
What to request from a seller
With a lot near Twin Hills, request whether the home has flooded before closing; an insurance quote early keeps the budget honest.
Land on the county line
Dillingham Census Area meets Bethel Census Area, Bristol Bay Borough, and Lake and Peninsula Borough, all with their own assessor records. A tract near the line by Ekwok may be split across two assessors' files, so open the adjacent map too. Closer to Ekwok, our state page links each bordering county map across Alaska.
Who handles what
For assessment questions about property around Aleknagik belong with the borough assessor, since that office keeps the assessment data. Building or septic questions for a lot near Koliganek are for the local planning and health departments, depending on whether the land is inside town limits.
The paper trail behind a parcel
The map is an index, not the title: deeds, plats and easements covering ground around Clark's Point are filed with the State Recorder's Office (Alaska DNR). Long-held tracts near Aleknagik can sit on a long string of deeds, so a title company can sort it out on a real sale.
A word on accuracy
The acreage figure is a tax-roll number; only a licensed surveyor can set the real lines on land around Alaska Maritime National Wildlife Refuge. For land near Togiak Wilderness, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Dillingham Census Area: common questions
Is Zone X safe from flooding near Koliganek?
Usually, Zone X near Dillingham means moderate (shaded) or minimal (unshaded) mapped risk; FEMA notes that a large share of claims come from these areas.
Can I see flood zones on the Alaska Statewide Parcels layer in ArcGIS Map Viewer around Clark's Point?
For a home near Twin Hills, a flood layer may appear in the Alaska Statewide Parcels layer in ArcGIS Map Viewer layer list, though it can lag behind FEMA's current panels.
How often are flood maps updated in Dillingham Census Area?
If the land is near New Stuyahok, FEMA revises flood maps panel by panel as new studies finish, so look at the panel date.
How do I check the flood zone for an address in Dillingham Census Area?
Short answer: FEMA's free map shows the zone for any spot near Twin Hills, and the zone code appears on the map.
How do I save a parcel from the viewer near Aleknagik?
Most viewers have a print or export tool; include the record panel for the lot near Alaska Maritime National Wildlife Refuge.
Open the official Dillingham Census Area, AK 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.