Blog · October 14, 2026 · Oregon
Tualatin GIS Map: looking up parcels
Parcel data for Tualatin comes from the county, and the viewer is free.
Main page: Clackamas County, OR 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.
When land near West Linn catches your eye, the Tualatin GIS map shows parcel boundaries plus basic tax data. What this Tualatin guide covers: which viewer to open, the fastest ways to search, and the limits worth knowing.
Where the Tualatin GIS map lives
In most places the county maintains the parcel layer, and for Tualatin that means the ORMAP statewide tax lot viewer.
Opening the official parcel viewer
Begin with the ORMAP statewide tax lot viewer; it covers each assessed parcel from Rivergrove to Milwaukie. Closer to Canby, enter a street address, an owner's name or a parcel number, and the viewer zooms to the match. For property near Lake Oswego, a pop-up or side panel usually lists the owner of record, acreage on the tax roll, the parcel number and often a sale date.
Reading the legal description
Oregon follows the Public Land Survey System, so rural legal descriptions near West Linn cite section, township and range. Each section is nominally a mile square, about 640 acres, and a township holds 36 of them, though sections near Milwaukie can be irregular. Copy the legal description from the record for the parcel near Wilsonville for any title or survey request.
Field tips
The parcel map usually runs in a mobile browser, which helps when you're standing on land near Wilsonville, though signal can drop in rural spots. A screenshot of the parcel near Rivergrove with its ID helps when you meet an owner or agent.
Keeping a record
Save a screenshot of the lot near Canby and its record panel, which helps later when you ask the assessor or a title company.
Where Tualatin fits in
Tualatin sits in Clackamas County, Oregon, so its parcels are on the county's map. If the land is near Lake Oswego, the municipality 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 Rivergrove generally answers to county rules, not municipal ones.
Places you'll see on the map
Oregon City holds the county offices, where most land records are kept. You'll also find Rivergrove, Lake Oswego, Wilsonville, and West Linn. Roughly 423,173 people live in Clackamas County (Census estimate, 2023) spread over some 1,871 square miles. Clackamas County was organized in 1843, and some chains of title near West Linn are long.
Search tips
Addresses are the easiest route inside Tualatin; for owner searches, try last name first. For a home near Canby, searching by parcel number never misses, and it's printed on tax bills.
Before you lean on the lines
The acreage figure is an assessed number; just a licensed surveyor can set the real corners on land around Wilsonville. For a home near Wilsonville, records update in batches, so a deed recorded last month might lag behind.
Troubleshooting the viewer
When the map won't open around West Linn, try a desktop browser or clear the cache; the Platbookmapper county page tracks the current link.
Deeds, plats and who keeps them
For anything that matters, get the recorded deed through the County Clerk; the viewer just points to it, and that holds around West Linn too. Closer to Wilsonville, have ready the book and page from the tax record and the lookup takes minutes.
Beyond the parcel lines
For a parcel near Milwaukie, look in the layer list for city limits, flood hazard, zoning or soils; availability varies.
Who handles what
Deeds, mortgages and recorded plats for land near Canby are with the County Clerk, usually searchable by name or document number. Questions about what you can build around Wilsonville are for the local planning and health departments, depending on whether the land is inside town limits.
When a parcel crosses a boundary
Clackamas County touches Hood River County, Marion County, Multnomah County, Wasco County, and Washington County, all with their own assessor records. Acreage along the edge near Wilsonville can be split across two assessors' files, so open the adjacent map too. On ground around West Linn, our state page links each neighboring county map for Oregon.
Reading a parcel record
Sales history, if listed, helps with pricing around West Linn give a rough idea of values; they're not an appraisal.
Quick answers
Can I look up a property owner on the map near Milwaukie?
It depends, but the parcel record for a lot near Wilsonville lists the owner of record.
How current is the parcel data in Tualatin?
For a parcel near Lake Oswego, updates come in batches.
Is the Tualatin GIS map free?
The ORMAP statewide tax lot viewer is free and opens without a login.
Can I use the city GIS map for a fence near Milwaukie near Happy Valley?
Generally, the map near Milwaukie isn't a survey; get a survey before a fence.
What's a legal description in Tualatin?
With a lot near Rivergrove, deeds use lot and block, metes and bounds or survey descriptions; copy it for any survey or title request.
Open the official Clackamas County, OR 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.