Find survey information and tax assessor’s maps - SAIL

Use SAIL (Survey and Assessor Image Locator) to find survey information and up-to-date assessor maps and property information in Multnomah County.

Start using the map:
sail.multco.us

You can search by address, tax lot number, plat name, survey number, and several other methods.

We have a new version of SAIL. This version is faster and has better search features. Use the Info button for tips on navigating the new map. 

The older version of SAIL  is still in use, but will be replaced by the new version and discontinued in the near future. If you are a regular user of SAIL, please take advantage of this transition period to become familiar with the new platform.

The new SAIL is built on ArcGIS Online, an industry standard for geographic information systems. The current platform is no longer supported.

Last reviewed date July 15, 2026