Blog · October 14, 2026 · Washington
Sunnyside Property Search, Washington: free records
Owner names near Grandview are public, and the official search is free.
Main page: Yakima County, WA GIS & Parcel Viewer (official map link, 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.
For any property near Mabton, a Sunnyside property search on the official viewer shows who the tax bill goes to. Covered here for Sunnyside: where to search, how to read owner names, and how to confirm with the deed.
Getting started with the Sunnyside property search
Open the Yakima County parcel viewer to start; addresses, names and parcel numbers all work.
Getting to the right map
Go first to the Yakima County parcel viewer; it includes every tax parcel from Moxee to Grandview. If you're looking near Toppenish, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. If the land is near Grandview, a pop-up or side panel usually lists the owner of record, acreage on the tax roll, the parcel number and in many cases the last transfer.
Limits of the parcel data
Acreage on the record is a tax-roll number; just a licensed surveyor establishes the real boundary on land around Toppenish. In and around Zillah, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Sunnyside and the county around it
Sunnyside is part of Yakima County, Washington, which means parcel data comes from the county. Closer to Moxee, city or town hall handles things like zoning, permits and utilities for lots inside the boundary, and the county still keeps the parcel and deed records. Lots just outside the city limits toward Grandview usually falls under county rules, not municipal ones.
What the owner name means
Near Mabton, the owner field shows who the tax bill names, which may be a person, a trust, a company or an estate. "Estate of" on a record near Granger usually means title hasn't passed yet after a death, so the personal representative is the contact.
Places you'll see on the map
Yakima holds the county offices, where most land records are kept. Smaller places on the map include Grandview, Mabton, Granger, and Zillah, where town lots give way to larger tracts. Around 256,643 people call Yakima County home (Census estimate, 2023) on about 4,295 square miles. Yakima County dates to 1865, and some chains of title near Grandview are long. Places such as Wenatchee National Forest are easy to spot when you zoom out from Mabton.
Which office to call
If the acreage or value on a parcel near Granger looks off are handled by the County Assessor, which maintains the tax roll. Building or septic questions for a lot near Toppenish are for the local planning and health departments, town or county, depending on location.
Legal descriptions in Washington
Washington follows the Public Land Survey System, which means a tract near Mabton is described by section, township and range. A standard section is about one square mile, roughly 640 acres, with 36 sections to a township, though sections near Granger can be irregular. Copy the legal description from the record for the parcel near Moxee for any title or survey request.
Recorded documents worth pulling
The map is an index, not the title: recorded deeds, subdivision plats and easements covering ground around Zillah are kept by the County Auditor. With a lot near Granger, have ready the instrument number shown in the record panel and the lookup takes minutes.
Values and taxes
Many records show assessed value and taxes for land near Zillah; the County Assessor sets values and the treasurer or collector bills taxes.
Using it on a phone
The parcel map usually runs in a mobile browser, which helps when you're standing on land near Zillah, but coverage can be spotty out of town. A saved image of the lot near Zillah and its lines helps when you meet an owner or agent.
Next door to Yakima County
Yakima County touches Benton County, Grant County, King County, Kittitas County, and Klickitat County, and each of those keeps its own parcel map. Acreage along the edge near Toppenish can be split across two assessors' files, so open the adjacent map as well. For a home near Grandview, the Platbookmapper state page lists each neighboring county map for Washington.
Looking around the parcel
Click the parcels around the one near Zillah to see who owns the neighboring land; it helps with access and boundary questions.
When you need more than the map
Use the book and page or instrument number from the record near Toppenish so the lookup is fast; hire a title company before money changes hands.
Making contact
A short letter to the mailing address on the record is the usual way to reach an owner for land near Zillah.
Sunnyside: common questions
Why is a deceased person listed as owner for land near Grandview?
Out toward Grandview, probate may still be open; be patient with responses.
How current is owner data near Granger?
Good question; a sale can take weeks or months to appear; check the index kept by the County Auditor for recent deeds.
Can I search by owner name for land near Zillah?
Generally, an owner search can return several parcels near Zillah; check spelling variations.
Is the parcel record proof of ownership for land near Grandview?
If the land is near Granger, the recorded deed is the proof, not the parcel record; the viewer is just an index.
Does the parcel map work on a phone around Granger?
No app is needed for most county viewers; load it before you lose coverage near Granger.
Open the official Yakima 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.