Multnomah County is located in the U.S. state of Oregon. Its county seat, Portland, is the state's largest city.

Multnomah County is part of the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area, and though smallest in area, it is the state's most populous county. Approximately one-third of Oregon's population resides in Multnomah County.

The county government is headed by a Board of County Commissioners, which consists of four elected commissioners and a chairperson. The county is also served by a number of other elected officials, including a sheriff, district attorney, and assessor.

Multnomah County is home to a number of parks and recreational areas, including the Columbia River Gorge National Scenic Area, the Oregon Zoo, and the Portland Japanese Garden. The county also operates a number of public libraries, including the Multnomah County Library.

For the most up-to-date and in-depth information, please check the public records links below.