Snohomish County WA Information


Snohomish County Subdivisions

Snohomish County WA Data & Demographics (As of July 1, 2016)


Total Population 771,902
Population in Households 761,465
Population in Familes 614,001
Population in Group Qrtrs 10,437
Population Density1 370
Diversity Index2 53


Total Households 288,388
Average Household Size 2.64
Family Households 195,063
Average Family Size 3


Total Housing Units 308,491 (100%)
Owner Occupied HU 189,919 (61.6%)
Renter Occupied HU 98,469 (31.9%)
Vacant Housing Units 20,103 ( 6.5%)
Median Home Value $338,393
Average Home Value $387,288


Median Household Income $71,061
Average Household Income $88,347
Per Capita Income $33,440
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.27% 1.51%
Households 1.16% 1.45%
Families 1.09% 1.41%
Median Household Income   2.45%
Per Capita Income   1.69%
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.


Snohomish County WA - Peer Comparisons by Rank and Percentile

The table below compares Snohomish County to the other 39 counties and county equivalents in Washington by rank and percentile using July 1, 2016 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 # 3 95th
Population Density1 # 7 85th
Diversity Index2 # 13 69th
Median Household Income # 2 97th
Per Capita Income # 4 92nd

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