Blog · October 14, 2026 · Washington
Union Gap GIS Map: looking up parcels
Parcel data for Union Gap comes from the county, and the viewer is free.
Main page: Yakima County, WA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When land near Harrah catches your eye, the Union Gap GIS map shows the outline, the owner of record and a parcel ID. Covered here for Union Gap: where that map lives, how to search it, and what to double-check with records.
Getting started with the Union Gap GIS map
Closer to Wapato, some cities also run their own GIS portal for utilities or zoning; that can add detail on top of the county map.
Pulling up a parcel
Property in and around Yakima are published on the Yakima County parcel viewer, which opens without registering. For land near Zillah, enter a street address, an owner's name or a parcel number, then pick the result to center the map on it. For property near Harrah, the parcel card usually lists the owner of record, assessed acreage, a parcel ID and sometimes recent sales.
City limits and county records
Union Gap sits in Yakima County, Washington, which means parcel data comes from the county. For a parcel near Harrah, the municipality handles things like zoning, permits and utilities within town limits, but the county runs assessment and recording. Land beyond the town limits near Zillah usually follows county rules instead.
Saving what you find
Print or screenshot the parcel near Selah with its ID visible, which helps later when you ask the assessor or a title company.
On site with the map
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Yakima, so load it before you lose signal. A screenshot of the parcel near Harrah with its ID is a good backup.
Three ways to find a parcel
Vacant ground near Harrah may lack an address, so zoom in from Interstate 82 and click the outline. If you're looking near Zillah, a parcel ID is the most reliable search, and it's printed on tax bills.
Getting your bearings
Yakima holds the county offices, home to the main records offices. You'll also find Moxee, Selah, and Wapato, each with its own cluster of lots. Roughly 256,643 people call Yakima County home (Census estimate, 2023) spread over about 4,295 square miles. Yakima County dates to 1865, and some chains of title near Yakima are long. Places such as Wenatchee National Forest make handy reference points on the map near Zillah.
Beyond the parcel lines
On ground around Harrah, look in the layer list for city limits, flood hazard, zoning or soils; availability varies.
Limits of the parcel data
The acreage figure is an estimate; only a licensed surveyor sets the real boundary for a parcel near Selah. Out toward Zillah, records update in batches, so a deed recorded last month might lag behind.
Browser tips
When the map won't open around Zillah, switch browsers or turn off pop-up blockers; links occasionally change, and our directory page keeps the current one.
Who handles what
For assessment questions about property around Selah belong with the County Assessor, since that office keeps the assessment data. Questions about what you can build around Selah are for the local planning and health departments, and the answer depends on jurisdiction.
Legal descriptions in Washington
Washington uses the Public Land Survey System, so deeds around Harrah reference sections and townships. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though corrections make some sections near Zillah odd-sized. Copy the legal description from the record for the parcel near Selah before you request a deed or survey.
What the record panel tells you
Recent sales on nearby lots around Wapato give a rough idea of values; an appraiser is the real authority.
Backing up the map with records
The map is an index, not the title: recorded deeds, subdivision plats and easements for land near Wapato are kept by the County Auditor. Older tracts near Harrah may trace back through several deeds, so a title company earns its fee if money is changing hands.
Land on the county line
Yakima County borders Benton County, Grant County, King County, Kittitas County, and Klickitat County; every one of them runs a separate parcel map. Acreage along the edge near Moxee can show up across two assessors' files, so open the neighboring map before you assume the acreage. For property near Zillah, our state page links every bordering county map across Washington.
Quick answers
What layers does the parcel viewer have in Union Gap?
Aerials near Harrah are usually available as a basemap; availability varies.
How often is the parcel map updated around Zillah?
On ground around Yakima, updates come in batches.
Is the Union Gap GIS map free?
For most people, the county viewer covering Union Gap needs no account.
Can I look up a property owner on the map near Wapato?
Short answer: the parcel record for a lot near Selah lists the owner of record.
Where do I ask about an assessment near Moxee?
For land near Zillah, assessment goes to the County Assessor and deeds to the County Auditor, while zoning questions go to planning
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.