San Juan County, Washington Population 2024

18,460

San Juan County, Washington's estimated 2024 population is 18,460 with a growth rate of -0.57% in the past year according to the most recent United States census data. San Juan County, Washington is the 32nd largest county in Washington. The 2010 population was 15,783 and has seen a growth of 16.96% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202917,930-106-0.59%
202818,036-106-0.58%
202718,142-106-0.58%
202618,248-106-0.58%
202518,354-106-0.57%
202418,460-106-0.57%
202318,566-106-0.57%
202218,672540.29%
202118,6187924.44%
202017,8264742.73%
201917,3523612.12%
201816,9913171.9%
201716,6744182.57%
201616,2561010.63%
201516,1551851.16%
201415,9701030.65%
201315,867610.39%
201215,806-1-0.01%
201115,807240.15%
201015,78300%
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%
1870554-17,376-96.91%
2024 Growth Rate
-0.57% (-106)
County Website
San Juan County
County Seat
Friday Harbor
2020 Population
17,826
Area
174 mi²
Density
106 people/mi²
Growth Since 2020
3.56% (634)
Founded
October 31, 1873

Population by Race

Race
Population
Percentage (of total)
White16,12988.3%
Two or more races1,1586.34%
Other race5773.16%
Asian2091.14%
Native American950.52%
Native Hawaiian or Pacific Islander500.27%
Black or African American480.26%

White

Two or more races

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Black or African American

San Juan County, Washington Population by Race

San Juan County, Washington Population Pyramid 2024

San Juan County, Washington Median Age

56.7

Total

56

Male

57.3

Female

San Juan County, Washington Adults

There are 15,935 adults, (6,402 of whom are seniors) in San Juan County, Washington.

San Juan County, Washington Age Dependency

91.6

Age Dependency Ratio

67.2

Old Age Dependency Ratio

24.5

Child Dependency Ratio

San Juan County, Washington Sex Ratio

Female9,28250.82%
Male8,98449.18%

San Juan County, Washington Population by Age

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

Household Type
Count
Average Size
Owner
Renter
All8,9342.0277.822.2
Married4,5822.5289.410.6
Non Family3,5311.2466.933.1
Female6032.5957.242.8
Male2182.868.331.7

2.45

Average Family Size

2.02

Average Household Size

77.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

San Juan County, Washington Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade4292.84%
Associates Degree1,0597.01%
Bachelors Degree4,62430.63%
Graduate Degree3,43922.78%
High School Graduate2,41916.02%
Less Than 9th Grade2431.61%
Some College2,88419.1%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

San Juan County, Washington Educational Attainment by Sex (over 25)

San Juan County, Washington Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White13,40113,0047,476
Hispanic845641175
2+ Races774670284
Other Race31421488
Asian186178112
Native American807920
Islander322421
Black282621

The highest rate of high school graduation is among native american people with a rate of 98.75%.

The highest rate of bachelors degrees is among black people with a rate of 75%.

San Juan County, Washington Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$48,291$61,795$36,735
Graduate Degree$67,375$88,942$49,539
High School Graduate$37,009$46,915$24,753
Less Than 9th Grade$36,364$46,818$23,929
Overall$45,286$57,063$35,891
Some College$41,318$49,900$36,028

$45,286

Average Earnings

$57,063

Average Male

$35,891

Average Female

San Juan County, Washington Earnings by Educational Attainment

San Juan County, Washington Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

San Juan County, Washington Language

93.42% of San Juan County, Washington residents speak only English, while 6.58% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.47% of the population.

San Juan County, Washington Language

San Juan County, Washington Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White15,5621,5209.77%
Hispanic1,32523517.74%
Multiple1,1451099.52%
Other5447313.42%
Asian2024421.78%
Native952122.11%
Islander50714%

10.48%

Overall Poverty Rate

8.77%

Male Poverty Rate

12.15%

Female Poverty Rate

Poverty in San Juan County, Washington

The race most likely to be in poverty in San Juan County, Washington is Native, with 22.11% below the poverty level.

The race least likely to be in poverty in San Juan County, Washington is Multiple, with 9.52% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.67%. Among those working part-time, it was 10.89%, and for those that did not work, the poverty rate was 15.44%.

San Juan County, Washington Poverty

rate

Rate
Poverty
Less Than 9th Grade14.75%
High School14.75%
Some College12.05%
Bachelors or Greater6.71%

San Juan County, Washington Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed36.36%
Male Unemployed18.42%
Female Employed7.34%
Male Employed4.64%

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

San Juan County, Washington Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$104,737$160,170
Households$83,682$129,398
Married Families$117,759$-999,999,999
Non Families$52,480$77,214

mean

median

Income by Household Type

San Juan County, Washington Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

58.2%

Overall Marriage Rate

61.0%

Male Marriage Rate

55.5%

Female Marriage Rate

San Juan County, Washington Married by Age and Sex

male

female

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

Married

Widowed

Divorced

Separated

NeverMarried

San Juan County, Washington Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,268

Number of Veterans

1,159

Male Veterans

109

Female Veterans

War
Veterans
Vietnam669
First Gulf War160
Second Gulf War115
Korea89
World War II24

San Juan County, Washington Veterans by War

count

Age Group
Veterans
75+556
65 to 74385
55 to 64152
35 to 54126
18 to 3449

San Juan County, Washington Veterans by Age

count

Name
Veterans
% of Total
White1,1848.25%
2+ Races586.82%
Hispanic212.22%
Other Race123.19%
Native American79.09%
Asian52.59%
Black26.67%

San Juan County, Washington Veterans by Race

San Juan County, Washington Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

6.96%

Veteran Poverty Rate

29.57%

Veteran Disability Rate

San Juan County, Washington Veterans by Education

LaborForceParticipation

53.4%

Labor Force Participation

51.6%

Employment Rate

3.1%

Unemployment Rate

San Juan County, Washington Employment by Age

LaborForceParticipation

San Juan County, Washington Employment by Race

LaborForceParticipation

San Juan County, Washington Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

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

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

33.6%

Born in San Juan County, Washington

92.67%

Native Born

7.33%

Foreign Born

3.38%

Non Citizen

3.95%

Naturalized

Place of Birth

92.67% of San Juan County, Washington residents were born in the United States, with 33.6% having been born in Washington. 3.38% 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

Sources