Multnomah County, Oregon

Multnomah County
Official seal of Multnomah County
Official logo of Multnomah County
Map of Oregon highlighting Multnomah County
Location within the U.S. state of Oregon
Map of the United States highlighting Oregon
Oregon's location within the U.S.
Coordinates: 45°32′N 122°25′W / 45.54°N 122.41°W / 45.54; -122.41
Country United States
State Oregon
FoundedDecember 22, 1854
Named forMultnomah people
SeatPortland
Largest cityPortland
Area
 • Total466 sq mi (1,210 km2)
 • Land431 sq mi (1,120 km2)
 • Water34 sq mi (90 km2)  7.4%
Population
 (2020)
 • Total815,428
 • Estimate 
(2023)
789,698 Decrease
 • Density1,700/sq mi (680/km2)
Time zoneUTC−8 (Pacific)
 • Summer (DST)UTC−7 (PDT)
Congressional districts1st, 3rd, 5th
Websitewww.multco.us

Multnomah County /mʌltˈnmə/ is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the county's population was 815,428.[1] Multnomah County is part of the PortlandVancouverHillsboro, OR–WA metropolitan statistical area. The state's smallest and most populous county,[2] its county seat, Portland, is the state's largest city.[3]

Map of Multnomah County
Map of Multnomah County
  1. ^ "State & County QuickFacts". United States Census Bureau. Retrieved March 20, 2024.
  2. ^ "Oregon Almanac: Abbreviation to Counties". Oregon Blue Book. State of Oregon. Archived from the original on October 25, 2018. Retrieved July 4, 2007.
  3. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.[dead link]