Blog · October 14, 2026 · Washington
Wahkiakum County Plat Map, Washington
The official Wahkiakum County parcel viewer, what its records show, and how to use it for land near Altoona.
Main page: Wahkiakum County, WA GIS & Parcel Viewer (official map link, Wahkiakum County facts and neighboring maps).
Platbookmapper is an Amazon Associate. If you buy through an Amazon link on this page, we earn a commission. The link is a product, not the county map.
A Wahkiakum County plat map answers the basic land questions around Cathlamet: who owns it, how big it is, where it sits. Below is the link, a quick tour of the parcel record, and the limits to keep in mind near Altoona.
How to use the Wahkiakum County plat map
Click a parcel near Cathlamet to see the parcel number, owner, acreage and a short legal description. Many Wahkiakum County records also list the deed book and page or an instrument number, which point you to the recorded documents.
Step one: the free Wahkiakum County viewer
For land around Altoona, open the Wahkiakum County ArcGIS parcel map (an Esri ArcGIS web map); it's the map Wahkiakum County itself publishes. Use the search box for an address in Cathlamet or a parcel number, or simply zoom in and click a tract around Altoona. If the official address for the Wahkiakum County, WA map ever changes, our directory page carries the current link for Cathlamet and the rest of the county.
Getting more out of the Wahkiakum County viewer
Turn on aerial imagery near Cathlamet to check what's actually on the ground, and remember photos and lines can be offset. Some versions of the map covering Cathlamet sometimes offer a measure tool and printing, so open the layer panel well before you hunt elsewhere.
Who uses the Wahkiakum County map
Buyers near Cathlamet start here to check frontage, acreage and neighbors, then follow up with the deed and a survey. Note the IDs for parcels near Deep River; they're the fastest way back to a record.
When the viewer misbehaves
Driving back roads near Altoona, the map loads like any web page, although signal can drop in rural spots. If the Wahkiakum County site is slow, check our directory page for a current link, as links sometimes change.
The Wahkiakum County economy in brief
Wahkiakum County's 2022 business count was 92 establishments, with construction, retail trade, and accommodation and food services the largest groups. Forestry and logging and building construction make up an above-average share of Wahkiakum County businesses, a clue to how land around Cathlamet gets used.
The lay of the land around Cathlamet
Courthouse business for Wahkiakum County runs through Cathlamet. Smaller places such as Altoona, Deep River, and East Cathlamet appear on the county map as little clusters of lots. Census Bureau estimates put Wahkiakum County at about 4,765 residents in 2023 on approximately 263 square miles of land. Beyond the town lots in Altoona, expect big rural parcels across the county. With a founding date of 1854, Wahkiakum County has long chains of title on some rural tracts.
Neighboring maps around Wahkiakum County
Near the edge of the county, check the next map over: Clatsop County, OR, Columbia County, OR, Cowlitz County, Lewis County, and Pacific County all border it. Our Washington page links each map neighboring Wahkiakum County.
Where Wahkiakum County land records are kept
For land near Deep River, the deed itself lives in the county recording office, and the map is an index to it. Easements and access rights near Altoona live in recorded documents, so read the deed, not just the county map.
Before you rely on Wahkiakum County data
Lines on the Wahkiakum County plat map are tax-roll figures, so treat them as approximate. Names on parcels near Cathlamet can lag recent sales, so a sale near Deep River last month may not show yet.
Wahkiakum County parcel map questions
Are lot lines on the Wahkiakum County map accurate?
They're approximate near Altoona; a recorded plat or survey decides the real boundary.
How do I search a parcel near Cathlamet?
Zoom to Cathlamet then open the parcel record.
Why does the Wahkiakum County map show the old owner?
Updates follow the assessor's schedule, so a recent sale near Cathlamet reflects the last update, not today.
Does it cost anything to view parcels near Altoona?
Viewing the Wahkiakum County ArcGIS parcel map is free; copies of recorded deeds may carry a fee.
How do I get the deed for a lot near Altoona?
Deeds for land near Altoona are filed with the county's recording office; bring the parcel ID.
How do I find a property on the Wahkiakum County map?
Search an address in Deep River, or click the tract directly.
Open the official Wahkiakum County, WA parcel map Wahkiakum 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.