Blog · October 17, 2026 · Alaska
Using the Unalaska Plat Map
Lots in Unalaska trace back to recorded plats filed with the county.
Main page: Aleutians West Census Area, AK GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When a deed near Atka says lot and block, the Unalaska plat map is where those numbers come from. This Unalaska guide covers: where to request a copy, how a plat differs from a parcel map, and the details that matter to buyers.
Getting started with the Unalaska plat map
For a subdivision near St. Paul, the deed usually cites the plat; that makes the request quick.
Pulling up a parcel
Your first stop is the Alaska Statewide Parcels layer in ArcGIS Map Viewer; it includes every assessed parcel from Atka to Adak. For a home near Adak, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. If the land is near St. Paul, the parcel card typically gives the owner of record, assessed acreage, a parcel ID and often a sale date.
Where the recorded documents are
The map is an index, not the title: deeds, plats and easements covering ground around Adak are kept by the State Recorder's Office (Alaska DNR). With a lot near Adak, have ready the book and page shown in the record panel so staff can find the deed fast.
Replats and vacations
Lots near St. George can be combined or reconfigured by a replat, search the index for replats of the same subdivision; vacated streets or alleys also get recorded.
Who handles what
Deeds, mortgages and recorded plats for land near Atka come from the State Recorder's Office (Alaska DNR), usually searchable by name or document number. Building or septic questions for a lot near Adak need the planning or permitting office, town or county, depending on location.
Unalaska and the county around it
Unalaska lies within Aleutians West Census Area, Alaska, and the county assessor maps its lots. For a parcel near Adak, city or town hall handles matters such as zoning, permits and utilities inside its limits, while the county keeps the tax map. Lots just outside the town limits near St. Paul generally falls under county rules rather than the town's.
Legal descriptions in Alaska
Alaska uses the Public Land Survey System, so rural legal descriptions near Adak cite section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though real sections near Adak vary in size. Keep the legal description for land near Atka for any title or survey request.
Taking the map into the field
Most viewers work in a phone browser, useful out on a road near Adak, but coverage can be spotty out of town. A screenshot of the parcel near Atka with its ID keeps working without signal.
Limits of the parcel data
Acreage on the record is a tax-roll number; just a licensed surveyor establishes the real corners for a parcel near Adak. For a tract near Adak, records update in batches, so a deed recorded last month might lag behind.
How a plat differs from the tax map
The Alaska Statewide Parcels layer in ArcGIS Map Viewer draws parcels for taxes, but the recorded plat is what the deed relies on.
When a parcel crosses a boundary
Aleutians West Census Area meets Aleutians East Borough, all with their own assessor records. Acreage along the edge near Adak can show up in two county records, so look at the neighboring map before you assume the acreage. Our state page links each bordering county map for Alaska.
Aleutians West Census Area in a few facts
Smaller places on the map include Adak, Atka, St. George, and St. Paul, each with its own cluster of lots. Around 5,160 people call Aleutians West Census Area home (Census estimate, 2023) across some 4,393 square miles. Aleutians West Census Area dates to 1987, which matters when you trace an old farm's title. Landmarks such as Alaska Maritime National Wildlife Refuge are easy to spot when you zoom out from Atka.
When there's no plat
Rural land near St. George that was never subdivided is often described by metes and bounds or survey description; look for a recorded survey for land near St. Paul.
What a plat shows
Easements on the plat near St. Paul limit where you can build or fence; read the notes on the sheet.
Online indexes and office visits
Around St. Paul, some counties put plat images online, while others require a visit or a request; copy fees are usually small.
Quick answers
Are old plats online near Atka?
Good question; the State Recorder's Office (Alaska DNR) can say what's available.
What is a lot and block description near Atka?
If the land is near St. Paul, the description sends you to a specific recorded plat; the deed names the subdivision.
How do I split a lot in Unalaska?
Short answer: lot splits in Unalaska go through the planning office, often with a surveyor's drawing.
Is a plat map a survey in Unalaska?
For acreage around St. Paul, a recorded plat is based on a survey, but the GIS map is not.
Is there a way to export the map near Atka?
Most viewers have a print or export tool, and it's worth keeping the parcel ID visible for land near Atka.
Open the official Aleutians West 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.