Multnomah County Population 2017

Multnomah County's estimated population is 799,766 with a growth rate of 1.35% 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
2016799,76610,6411.35%
2015789,12511,9711.54%
2014777,15411,3041.48%
2013765,8506,7790.89%
2012759,07110,8861.45%
2011748,18510,8111.47%
2010737,374153,48726.29%
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
White633,36679.19%
Asian57,8367.23%
Black or African American45,9105.74%
Two or More Races35,1994.40%
American Indian and Alaska Native11,6531.46%
Native Hawaiian and Other Pacific Islander5,1610.65%

Multnomah County Population Pyramid

0k10k20k30k40kMultnomah County Male Population0k10k20k30k40kMultnomah County Female Population

Population of Cities in Multnomah County

City 2010 Census 2016 Estimated Growth Growth Rate
Portland583799639863560649.60%
Gresham10563511152358885.57%
Troutdale15956166176614.14%
Fairview891792903734.18%
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