Snohomish County WA Information

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Snohomish County Subdivisions

Snohomish County WA Data & Demographics (As of July 1, 2023)

POPULATION

Total Population 858,614 (100%)
Population in Households 850,508 (99.1%)
Population in Families 684,196 (79.7%)
Population in Group Quarters1 8,106 ( 0.9%)
Population Density 411
Diversity Index2 64
 
 

INCOME

Median Household Income $104,508
Average Household Income $137,895
% of Income for Mortgage4 37%
Per Capita Income $51,308
Wealth Index5 140
Socioeconomic Status Index6 Moderate (52.3)
 

HOUSING

Total HU (Housing Units) 333,854 (100%)
Owner Occupied HU 217,455 (65.1%)
Renter Occupied HU 101,913 (30.5%)
Vacant Housing Units 14,486 ( 4.3%)
Median Home Value $637,662
Average Home Value $677,345
Housing Affordability Index3 66
 

HOUSEHOLDS

Total Households 319,368
Average Household Size 2.66
Family Households 215,143
Average Family Size 3.00
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

2020-2023 2023-2028
Population 1.12% 0.64%
Households 1.24% 0.71%
Families   0.76%
Median Household Income   2.58%
Per Capita Income   3.05%
Owner Occupied HU   0.97%

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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, 2023 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 Density # 7 85th
Median Household Income # 2 97th
Housing Affordability Index # 10 26th
Per Capita Income # 3 95th
Diversity Index # 12 72nd

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

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