San Juan County, Washington Population 2021

San Juan County, Washington's estimated population is 18,498 with a growth rate of 2.54% in the past year according to the most recent United States census data. San Juan County, Washington is the 33rd largest county in Washington. The 2010 Population was 15,783 and has seen a growth of 17.20% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202118,4984582.54%
202018,0404582.60%
201917,5824582.67%
201817,1243952.36%
201716,7294202.58%
201616,3091110.69%
201516,1981891.18%
201416,0091000.63%
201315,909610.38%
201215,84830.02%
201115,845620.39%
201015,7835,74857.28%
199010,0352,19728.03%
19807,8383,982103.27%
19703,85698434.26%
19602,872-373-11.49%
19503,245882.79%
19403,157601.94%
19303,097-508-14.09%
19203,60520.06%
19103,60367523.05%
19002,92885641.31%
18902,0721,124118.57%
188094839471.12%
18705540.00%
2021 Growth Rate
2.54%
County Website
Founded
October 31, 1873
County Seat
2010 Population
15,783
Growth Since 2010
17.20%
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San Juan County, Washington Population Growth

Population by Race

Race Population Percentage
White15,49792.31%
Two or More Races4182.49%
Some Other Race3031.80%
Asian2191.30%
American Indian and Alaska Native1630.97%
Black or African American1490.89%
Native Hawaiian and Other Pacific Islander390.23%
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San Juan County, Washington Population by Race

San Juan County, Washington Population Pyramid $2021

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San Juan County, Washington Median Age

56.6


Total

56.3


Male

56.8


Female

San Juan County, Washington Adults

There are 14,566 adults, (5,527 of whom are seniors) in San Juan County, Washington.

San Juan County, Washington Age Dependency

85.7

Age Dependency Ratio

61.1

Old Age Dependency Ratio

24.6

Child Dependency Ratio

San Juan County, Washington Sex Ratio

Female

8,699

51.82%

Male

8,089

48.18%

San Juan County, Washington Population by Age

San Juan County, Washington Renter vs Owner Occupied by Household Type

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San Juan County, Washington Household Types

Type Owner Renter
Married86.7%13.3%
All74.6%25.4%
Male63.4%36.6%
Non Family62.3%37.7%
Female58.7%41.3%

74.6%

Rate of Home Ownership

San Juan County, Washington Households and Families

Type Count Average Size Owned
All8,2522.0174.6
Married4,2152.586.7
Non Family3,2311.2262.3
Female5332.6358.7
Male2732.5963.4

2.43

Average Family Size

2.01

Average Household Size

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San Juan County, Washington Households by Type

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Education Attained Count Percentage
Less Than 9th Grade1511.10%
9th to 12th Grade4173.04%
High School Graduate2,19015.97%
Some College3,18123.20%
Associates Degree9426.87%
Bachelors Degree4,03429.42%
Graduate Degree2,79520.39%
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San Juan County, Washington Educational Attainment by Sex (over 25)

San Juan County, Washington Educational Attainment by Race

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Race Total High School Bachelors
White12,46912,0726,443
Hispanic632488157
2+ Races255231103
Other Race17310623
Asian16716282
Native American11811726
Black786921
Islander35317

The highest rate of high school graduation is among native american people with a rate of 99.15%.

The highest rate of bachelors degrees is among white people with a rate of 51.67%.

San Juan County, Washington Educational Attainment by Race

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Name Average Male Female
Overall$35,424$45,076$28,382
Less Than 9th Grade$26,736$31,141$21,792
High School Graduate$34,509$41,068$25,000
Some College$32,296$46,513$26,419
Bachelors Degree$35,963$48,269$30,247
Graduate Degree$46,419$58,472$38,625

$35,424

Average Earnings

$45,076

Average Male

$28,382

Average Female

San Juan County, Washington Earnings by Educational Attainment

San Juan County, Washington Language by Age

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San Juan County, Washington Language

93.24% of San Juan County, Washington residents speak only English, while 6.76% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.22% of the population.

San Juan County, Washington Language

San Juan County, Washington Poverty by Race

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Name Total In Poverty Poverty Rate
White14,6451,3899.48%
Hispanic1,07922020.39%
Other30010936.33%
Multiple4174911.75%
Asian2083516.83%
Black13496.72%
Native16184.97%
Islander3937.69%

10.22%

Overall Poverty Rate

8.74%

Male Poverty Rate

11.59%

Female Poverty Rate

Poverty in San Juan County, Washington

The race most likely to be in poverty in San Juan County, Washington is Other, with 36.33% below the poverty level.

The race least likely to be in poverty in San Juan County, Washington is Native, with 4.97% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.84%. Among those working part-time, it was 11.88%, and for those that did not work, the poverty rate was 14.59%.

San Juan County, Washington Poverty

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Name Poverty
Less Than 9th Grade15.49%
High School11.77%
Some College9.12%
Bachelors or Greater8.61%

San Juan County, Washington Poverty Rate by Education

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Rate Poverty
Female Unemployed33.33%
Male Unemployed29.31%
Female Employed7.22%
Male Employed4.74%

San Juan County, Washington Poverty Rate by Employment Status and Sex

San Juan County, Washington Income by Household Type

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Name Median Mean
Households$63,622$94,382
Families$80,566$111,982
Married Families$87,983-
Non Families$40,250$62,488
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Income by Household Type

San Juan County, Washington Marital Status

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Marriage Rates

58.5%

Overall Marriage Rate

60.5%

Male Marriage Rate

56.6%

Female Marriage Rate

San Juan County, Washington Married by Age and Sex

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San Juan 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 55-64.

San Juan County, Washington Marital Status by Race

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San Juan County, Washington Marital Status

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1,479

Number of Veterans

1,396

Male Veterans

83

Female Veterans

War Veterans
Vietnam765
First Gulf War185
Korea138
Second Gulf War73
World War II58

San Juan County, Washington Veterans by War

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Age Group Veterans
75+535
65 to 74518
55 to 64248
35 to 54159
18 to 3419

San Juan County, Washington Veterans by Age

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Name Veterans % of Total
White1,41010.35%
Hispanic466.28%
2+ Races2810.53%
Native American1310.40%
Black1111.11%
Asian84.28%
Islander720.00%
Other Race20.91%

San Juan County, Washington Veterans by Race

San Juan County, Washington Veterans by Education

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5.48%

Veteran Poverty Rate

25.60%

Veteran Disability Rate

San Juan County, Washington Veterans by Education

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53.6%

Labor Force Participation

52.3%

Employment Rate

2.4%

Unemployment Rate

San Juan County, Washington Employment by Age

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San Juan County, Washington Employment by Race

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San Juan 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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33.92%

Born in San Juan County, Washington

92.42%

Native Born

7.58%

Foreign Born

3.65%

Non Citizen

3.93%

Naturalized

Place of Birth

92.42% of San Juan County, Washington residents were born in the United States, with 33.92% having been born in Washington. 3.65% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.

San Juan 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