Multnomah County OR Information


Multnomah County Subdivisions

Multnomah County OR Data & Demographics (As of July 1, 2015)


Total Population 762,284
Population in Households 743,007
Population in Familes 508,878
Population in Group Qrtrs 19,277
Population Density1 1,767
Diversity Index2 54


Total Households 316,788
Average Household Size 2.35
Family Households 167,723
Average Family Size 3


Total Housing Units 337,638 (100%)
Owner Occupied HU 163,862 (48.5%)
Renter Occupied HU 152,926 (45.3%)
Vacant Housing Units 20,850 ( 6.2%)
Median Home Value $301,899
Average Home Value $367,332


Median Household Income $52,462
Average Household Income $72,013
Per Capita Income $30,077
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.69% 0.95%
Households 0.75% 0.99%
Families 0.48% 0.82%
Median Household Income   3.01%
Per Capita Income   2.88%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


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, 2015 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 Density1 # 1 100th
Diversity Index2 # 8 81st
Median Household Income # 8 81st
Per Capita Income # 4 92nd

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