Multnomah County Population 2018

Multnomah County's estimated population is 807,555 with a growth rate of 0.75% in the past year according to the most recent United States census data. Multnomah County is the 1st largest county in Oregon.

Year Population Growth Growth Rate
2017807,5556,0160.75%
2016801,53911,2341.42%
2015790,30512,8871.66%
2014777,41811,9411.56%
2013765,4776,9630.92%
2012758,51410,6681.43%
2011747,84610,6641.45%
2010737,182153,29526.25%
1990583,88721,2473.78%
1980562,6405,9731.07%
1970556,66733,8546.48%
1960522,81351,27610.87%
1950471,537116,43832.79%
1940355,09916,8584.98%
1930338,24162,34322.60%
1920275,89849,63721.94%
1910226,261123,094119.32%
1900103,16728,28337.77%
189074,88449,681197.12%
188025,20313,693118.97%
187011,5107,360177.35%
18604,1500.00%

Multnomah County Population Growth

Population Data via

Multnomah County Race Data

Race Population Percentage
White633,36678.43%
Asian57,8367.16%
Black or African American45,9105.69%
Two or More Races35,1994.36%
American Indian and Alaska Native11,6531.44%
Native Hawaiian and Other Pacific Islander5,1610.64%

Multnomah County Population Pyramid

0k10k20k30k40k Male Population0k10k20k30k40k Female Population8580757065605550454035302520151050
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990