Snohomish County, Washington Population 2021

Snohomish County, Washington's estimated population is 840,131 with a growth rate of 1.09% in the past year according to the most recent United States census data. Snohomish County, Washington is the 4th largest county inWashington. The 2010 Population was 715,500 and has seen a growth of 17.42% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Annual Growth Rate
2021840,1319,0241.09%
2020831,1079,0241.10%
2019822,0839,0241.11%
2018813,05910,9701.37%
2017802,08914,9791.90%
2016787,11017,4122.26%
2015769,69812,4591.65%
2014757,23913,1271.76%
2013744,11212,0151.64%
2012732,09710,0291.39%
2011722,0686,5680.92%
2010715,500249,85853.66%
1990465,642127,92237.88%
1980337,72072,48427.33%
1970265,23693,03754.03%
1960172,19960,61954.33%
1950111,58022,82625.72%
194088,7549,89312.54%
193078,86111,17116.50%
192067,6908,48114.32%
191059,20935,259147.22%
190023,95015,436181.30%
18908,5147,127513.84%
18801,387788131.55%
18705990.00%
2021 Growth Rate
1.09% (9,024)
County Website
Founded
January 14, 1861
County Seat
2010 Population
715,500
Growth Since 2010
17.42% (124,631)
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Snohomish County, Washington Population Growth

Population by Race

Race Population Percentage
White601,91575.35%
Asian86,12110.78%
Two or More Races50,0896.27%
Some Other Race24,7643.10%
Black or African American24,3693.05%
American Indian and Alaska Native7,3530.92%
Native Hawaiian and Other Pacific Islander4,1970.53%
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Snohomish County, Washington Population by Race

Snohomish County, Washington Population Pyramid $2021

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Snohomish County, Washington Median Age

38


Total

37.2


Male

38.9


Female

Snohomish County, Washington Adults

There are 617,135 adults, (104,645 of whom are seniors) in Snohomish County, Washington.

Snohomish County, Washington Age Dependency

55.9

Age Dependency Ratio

20.4

Old Age Dependency Ratio

35.4

Child Dependency Ratio

Snohomish County, Washington Sex Ratio

Female

398,214

49.85%

Male

400,594

50.15%

Snohomish County, Washington Population by Age

Snohomish County, Washington Renter vs Owner Occupied by Household Type

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Snohomish County, Washington Household Types

Type Owner Renter
Female47.6%52.4%
Non Family51.6%48.4%
Male52.6%47.4%
All67.1%32.9%
Married80.9%19.1%

67.1%

Rate of Home Ownership

Snohomish County, Washington Households and Families

Type Count Average Size Owned
All293,8232.6867.1
Married158,8393.2880.9
Non Family90,7071.3551.6
Female28,8843.2347.6
Male15,3933.2752.6

3.16

Average Family Size

2.68

Average Household Size

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Snohomish County, Washington Households by Type

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Education Attained Count Percentage
Less Than 9th Grade15,5272.80%
9th to 12th Grade27,1644.90%
High School Graduate129,23623.32%
Some College141,19525.48%
Associates Degree59,35910.71%
Bachelors Degree123,00322.19%
Graduate Degree58,71510.59%
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Snohomish County, Washington Educational Attainment by Sex (over 25)

Snohomish County, Washington Educational Attainment by Race

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Race Total High School Bachelors
White409,066388,234131,475
Asian61,89155,35031,727
Hispanic41,72030,5287,718
2+ Races21,33619,5176,220
Black16,35614,6343,974
Other Race14,0479,2061,896
Native American4,4753,869706
Islander2,9422,381388

The highest rate of high school graduation is among white people with a rate of 94.91%.

The highest rate of bachelors degrees is among asian people with a rate of 51.26%.

Snohomish County, Washington Educational Attainment by Race

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Name Average Male Female
Overall$51,091$62,046$40,320
Less Than 9th Grade$31,996$38,234$23,429
High School Graduate$40,782$50,348$30,615
Some College$46,847$57,484$37,346
Bachelors Degree$66,094$83,898$51,762
Graduate Degree$84,623$104,264$68,918

$51,091

Average Earnings

$62,046

Average Male

$40,320

Average Female

Snohomish County, Washington Earnings by Educational Attainment

Snohomish County, Washington Language by Age

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Snohomish County, Washington Language

78.58% of Snohomish County, Washington residents speak only English, while 21.42% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 7.52% of the population.

Snohomish County, Washington Language

Snohomish County, Washington Poverty by Race

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Name Total In Poverty Poverty Rate
White548,38334,8666.36%
Hispanic80,2389,26411.55%
Asian85,5296,8898.05%
Multiple48,8174,89910.04%
Other24,4403,32113.59%
Black23,3412,78411.93%
Native6,99097413.93%
Islander4,1412736.59%

7.50%

Overall Poverty Rate

6.64%

Male Poverty Rate

8.36%

Female Poverty Rate

Poverty in Snohomish County, Washington

The race most likely to be in poverty in Snohomish County, Washington is Native, with 13.93% below the poverty level.

The race least likely to be in poverty in Snohomish County, Washington is White, with 6.36% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.05%. Among those working part-time, it was 9.22%, and for those that did not work, the poverty rate was 15.54%.

Snohomish County, Washington Poverty

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Name Poverty
Less Than 9th Grade15.49%
High School9.11%
Some College6.81%
Bachelors or Greater3.03%

Snohomish County, Washington Poverty Rate by Education

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Rate Poverty
Male Unemployed22.40%
Female Unemployed19.83%
Female Employed3.71%
Male Employed2.62%

Snohomish County, Washington Poverty Rate by Employment Status and Sex

Snohomish County, Washington Income by Household Type

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Name Median Mean
Households$86,691$105,008
Families$101,467$119,298
Married Families$112,857$132,247
Non Families$52,082$65,875
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Income by Household Type

Snohomish County, Washington Marital Status

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Marriage Rates

53.1%

Overall Marriage Rate

53.6%

Male Marriage Rate

52.7%

Female Marriage Rate

Snohomish County, Washington Married by Age and Sex

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Snohomish County, Washington Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Snohomish County, Washington Marital Status by Race

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Snohomish County, Washington Marital Status

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51,606

Number of Veterans

46,737

Male Veterans

4,869

Female Veterans

War Veterans
Vietnam17,749
First Gulf War12,020
Second Gulf War10,999
Korea2,887
World War II1,209

Snohomish County, Washington Veterans by War

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Age Group Veterans
35 to 5415,268
65 to 7412,393
55 to 6410,384
75+8,803
18 to 344,758

Snohomish County, Washington Veterans by Age

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Name Veterans % of Total
White45,1099.50%
Hispanic2,6305.24%
Black1,96310.71%
2+ Races1,7186.45%
Asian1,5202.23%
Other Race5723.40%
Native American4378.51%
Islander2878.36%

Snohomish County, Washington Veterans by Race

Snohomish County, Washington Veterans by Education

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4.04%

Veteran Poverty Rate

26.11%

Veteran Disability Rate

Snohomish County, Washington Veterans by Education

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67.6%

Labor Force Participation

64.3%

Employment Rate

4.1%

Unemployment Rate

Snohomish County, Washington Employment by Age

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Snohomish County, Washington Employment by Race

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Snohomish County, Washington Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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50.31%

Born in Snohomish County, Washington

83.92%

Native Born

16.08%

Foreign Born

7.63%

Non Citizen

8.45%

Naturalized

Place of Birth

83.92% of Snohomish County, Washington residents were born in the United States, with 50.31% having been born in Washington. 7.63% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Snohomish County, Washington Place of Birth

  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

Sources