Multnomah County OR Information


Multnomah County Subdivisions

Multnomah County OR Data & Demographics (As of July 1, 2018)


Total Population 818,453
Population in Households 798,623
Population in Familes 542,681
Population in Group Qrtrs 19,830
Population Density2 1,898
Diversity Index3 55


Median Household Income $60,995
Average Household Income $87,119
Per Capita Income $36,059


Total Housing Units 352,367 (100%)
Owner Occupied HU 175,129 (49.7%)
Renter Occupied HU 158,270 (44.9%)
Vacant Housing Units 18,968 ( 5.4%)
Median Home Value $335,178
Average Home Value $390,546


Total Households 333,399
Average Household Size 2.4
Family Households 176,343
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.31% 1.3%
Households 1.1% 1.23%
Families 0.92% 1.11%
Median Household Income   2.35%
Per Capita Income   2.38%


Multnomah County OR - Peer Comparisons by Rank and Percentile

The table below compares Multnomah County to the other 36 counties and county equivalents in Oregon by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 1 100th
Population Density # 1 100th
Diversity Index # 8 81st
Median Household Income # 6 86th
Per Capita Income # 3 94th

Additional comparisons and rankings can be made with a VERY EASY TO USE Oregon Census Data Comparison Tool.