Multnomah County

Multnomah County, Oregon

1021 SW 4th Ave
Portland, OR 97204
Phone: (503) 988-3957
Fax: (503) 988-5773
www.co.multnomah.or.us

On central northern border of OR; organized Dec 22, 1854 (prior to statehood) from Clackamas and Washington counties. The smallest county in OR by size and largest by population. Name Origin: For the Multnomah Indian village on Sauvie Island; Lewis and Clark applied the name to all local Indians. From nemathlonamaq, probably meaning 'downriver.'

Area (sq mi):: 465.65 (land 435.23; water 30.42) Population per square mile: 1546.10
Population 2005: 672,906 State rank: 1 Population change: 2000-20005 1.90%; 1990-2000 13.10% Population 2000: 660,486 (White 76.50%; Black or African American 5.70%; Hispanic or Latino 7.50%; Asian 5.70%; Other 9.50%). Foreign born: 12.70%. Median age: 34.90
Income 2000: per capita $22,606; median household $41,278; Population below poverty level: 12.70% Personal per capita income (2000-2003): $32,328-$34,017
Unemployment (2004): 7.60% Unemployment change (from 2000): 1.30% Median travel time to work: 23.80 minutes Working outside county of residence: 21.60% Cities with population over 10,000:
  • Portland County seat (533,492)
  • Gresham (95,376)
  • Troutdale (14,711)
    • See other counties in Oregon.