Blog · October 14, 2026 · Washington
Ephrata Plat Map: finding the recorded plat
Lots in Ephrata trace back to recorded plats filed with the county.
Main page: Grant County, WA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Checking easements on a house around Mattawa? Start with the Ephrata plat map, since it shows lots, streets and easements as approved. In this Ephrata guide: where plats are filed, plat versus tax map, and what to look for on the sheet.
The Ephrata plat map: start here
For a lot around George, the deed or parcel record often names the subdivision and plat reference; that makes the request quick.
Pulling up a parcel
Your first stop is the Washington Current Parcels layer in ArcGIS Map Viewer; it covers each assessed parcel around Moses Lake and Soap Lake. Near Grand Coulee, put in a street address, an owner's name or a parcel number, then pick the result to center the map on it. For acreage around George, the record panel normally shows the owner of record, acreage on the tax roll, the parcel number and in many cases the last transfer.
Ephrata and the county around it
Ephrata sits in Grant County, Washington, and the county assessor maps its lots. As the county seat, Ephrata hosts the courthouse, handy when you need recorded documents. For land near Soap Lake, City or town hall handles things like zoning, permits and utilities within town limits, while the county keeps the tax map. Acreage past the town limits near Grand Coulee often answers to county rules rather than the town's.
Two different maps
Where lines don't match in Ephrata, the recorded plat and a survey control.
Before you lean on the lines
The acreage figure is an estimate; only a licensed surveyor can set the real corners for a parcel near Electric City. For property near Soap Lake, records update in batches, so a deed recorded last month might lag behind.
Amended plats
An amended plat may change lots around Grand Coulee, so check for later filings; street vacations near Quincy show up in the records too.
How land is described here
Washington follows the Public Land Survey System, so rural legal descriptions near Electric City cite section, township and range. A standard section is about one square mile, roughly 640 acres, and a township holds 36 of them, though corrections make some sections near George odd-sized. Copy the legal description from the record for the parcel near Grand Coulee for any title or survey request.
Offices that can help
Deeds, mortgages and recorded plats for land near Electric City sit in the index kept by the County Auditor, sometimes only in person. Questions about what you can build around George need the planning or permitting office, and the answer depends on jurisdiction.
What a plat shows
Recorded easements around George stay with the land when it sells; check the plat notes and any covenants.
A quick look at the area
Ephrata serves as the county seat, which is where the courthouse records live. You'll also find Soap Lake, Quincy, Moses Lake, and Electric City, where town lots give way to larger tracts. Around 102,678 people call Grant County home (Census estimate, 2023) spread over about 2,680 square miles. Grant County was organized in 1909, so old deeds can run back a long way. Features like Columbia National Wildlife Refuge help you orient on the aerial around Soap Lake.
Ordering the Ephrata plat map
For land near Quincy, some counties put plat images online, otherwise call or visit with the reference; small fees are common.
Recorded documents worth pulling
The map is an index, not the title: recorded deeds, subdivision plats and easements covering ground around Grand Coulee are kept by the County Auditor. For a home near Quincy, use the instrument number shown in the record panel to skip a name search.
Taking the map into the field
Most viewers work in a phone browser, which helps when you're standing on land near Moses Lake, so load it before you lose signal. A printout of the tract near Electric City is a good backup.
Land on the county line
Grant County borders Adams County, Benton County, Douglas County, Franklin County, and Kittitas County, and each of those keeps its own parcel map. A tract near the line by Moses Lake may be split in two county records, so look at the neighboring map before you assume the acreage. If the land is near Moses Lake, the Platbookmapper state page lists every bordering county map across Washington.
Metes and bounds instead
Acreage around George outside a subdivision is often described by metes and bounds or survey description; the deed and any recorded survey describe it instead.
Questions about the Ephrata plat map
Is a plat map a survey around Moses Lake?
For property near George, a recorded plat is based on a survey, but the GIS map is not.
What do the dashed lines on a plat mean in Ephrata?
Good question; building on an easement near George is generally restricted; read the plat notes.
Are old plats online near Quincy?
On ground around Moses Lake, it varies; some offices have scanned older plats and some haven't, including older subdivisions.
Who has recorded plats for land near Electric City?
Good question; copies come from the County Auditor, often through an online index; use the plat reference from the deed or parcel record.
Does the parcel map work on a phone for land near Grand Coulee?
Near Grand Coulee, most viewers run in a mobile browser; screenshots help offline.
Open the official Grant County, WA 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.