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Washington ZIP Codes
San Juan County
Olga, WA
98279
98279 ZIP Code — Olga, WA
San Juan County, Washington
ZIP code 98279 is located in
Olga ,
Washington ,
within San Juan County .
It covers approximately 13.63 square miles and serves a population of
614 residents.
This is a standard ZIP code in the Pacific (PT) timezone,
served by area code 360/564 .
About ZIP code 98279
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $725,500. Owner-occupancy sits near the national average at 63%.
The gap between median ($58,906) and mean household income suggests income inequality — a small number of higher earners pull the average up. Poverty affects 25% of residents, above the national average. 56% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with construction as the leading industry. The average commute of 25 minutes is near the national average. Remote work is prevalent — 23% of workers work from home.
Educational attainment is high — 54% of residents hold a bachelor's degree or higher, well above the national average of 33%.
16% of residents lack health insurance, above the national average.
Overall, ZIP code 98279 reflects a community defined by a highly educated population, economic challenges above the national average, a high rate of remote workers, and a significant Social Security-dependent population.
98279 ZIP code map
View map of 98279
Cities in ZIP code 98279
Below are the cities the US Postal Service accepts for ZIP code 98279. Using any city not on this list may result in mail delivery delays.
City
Status
Olga
Acceptable
Olga
Preferred
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
614
Population density
45 / sq mi
State FIPS
53
County FIPS
055
Geography
Land area
13.63 sq mi
Water area
5.21 sq mi
Latitude
48.6503
Longitude
-122.8133
Timezone
Pacific (PT)
Area code
360/564
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
46.4%
38.6%
31.7%
$50k – $100k
24.0%
29.7%
30.6%
$100k – $200k
21.8%
22.8%
27.1%
Over $200k
7.8%
9.0%
10.6%
Demographics & statistics
$58,906
Median household income
$725,500
Median home value
$1,638
Median monthly rent
54.1%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 62 10.1% 18 and over 552 89.9% 65 and over 253 41.2% Median age 61.9 years
Race & ethnicity
Group Count % White 584 92.8% Two or more races 16 2.5% Hispanic or Latino 15 2.4% Asian 8 1.3% Other race 6 1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
46.4%
38.6%
31.7%
$50k – $100k
24.0%
29.7%
30.6%
$100k – $200k
21.8%
22.8%
27.1%
Over $200k
7.8%
9.0%
10.6%
Range % of households Under $10k 19.6% $10k–$15k 3.1% $15k–$25k 4.0% $25k–$35k 7.8% $35k–$50k 9.3% $50k–$75k 12.5% $75k–$100k 9.7% $100k–$150k 16.8% $150k–$200k 9.0% $200k+ 8.1% Median income $58,906
Housing
Housing overview
Metric Value Median home value $725,500 Median rent / month $1,638 Owner occupied 63.2% Renter occupied 36.8% Vacant 56.8% Single-family detached 96.2% Large apartment buildings 0.0% Mobile homes 1.7% Median rooms 4.6 Avg household size (owned) 2.04
Year built
Era % 2020 or later 0.0% 2010–2019 7.1% 2000–2009 22.1% 1990–1999 14.4% 1980–1989 22.3% 1970–1979 9.2% 1960–1969 4.7% 1950–1959 9.2% 1940–1949 0.9% 1939 or earlier 10.1%
Bedrooms
Size % of units No bedroom (studio) 6.9% 1 bedroom 19.0% 2 bedrooms 37.1% 3 bedrooms 24.5% 4 bedrooms 9.0% 5+ bedrooms 3.5%
Vehicles per household
Vehicles % of households No vehicle 3.1% 1 vehicle 31.8% 2 vehicles 34.0% 3 or more 31.2%
Heating fuel
Fuel type % Utility gas 3.4% Electricity 58.3% Propane / LP gas 11.2% Fuel oil 2.5% Wood 23.1% No fuel used 0.6%
Households & families
Household type Count % Married-couple family 153 47.7% Cohabiting couple 24 7.5% Male householder, no spouse 37 11.5% Female householder, no spouse 107 33.3% Households with children under 18 71 22.1% Households with seniors (65+) 168 52.3% Average household size 1.91
Marital status
Status Male Female Never married 17.6% 17.4% Married 62.0% 53.4% Separated 1.2% 13.1% Widowed 0.0% 6.9% Divorced 19.2% 9.2%
Education
Some college, no degree
24.7%
Graduate / professional
19.9%
Metric % HS diploma or higher 98.2% Bachelor's or higher 54.1%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 0 0.0% Kindergarten 0 0.0% Elementary school 15 42.9% High school 8 22.9% College / grad school 12 34.3%
Employment
Industry of employment
Education & healthcare
18.6%
Arts, food & hospitality
17.5%
Professional & management
10.4%
Finance & real estate
7.8%
Transportation & utilities
4.1%
Agriculture & mining
3.3%
Occupation
Category % Management, business & arts 40.5% Service 14.5% Sales & office 15.6% Natural resources & construction 24.2% Production & transportation 5.2%
Employment type
Type % Private sector 66.9% Government 11.9% Self-employed 21.2% Unpaid family workers 0.0%
Commute
Method % Drive alone 63.9% Carpool 7.1% Public transit 0.0% Walk 4.9% Work from home 22.9% Other means 1.1% Avg commute (minutes) 25.1
Poverty
Married-couple families
1.3%
Female-led households
100.0%
Income support
Source % of households Social Security 56.4% Retirement income 22.1% Supplemental Security 5.3% Cash public assistance 1.6% Food stamps / SNAP 9.0%
Health indicators
Condition % Obesity 26.7% High blood pressure 35.0% High cholesterol 37.4% Diabetes 10.5% Heart disease 7.9% Stroke 3.5% Asthma 10.2% Arthritis 30.1% Kidney disease 3.6% Pulmonary disease 7.0% Cancer 9.8%
Behavior / access % Smoking 11.7% Binge drinking 14.0% No physical activity 16.1% Less than 7 hrs sleep 25.2% Depression 23.6% Fair or poor health 13.0% Poor mental health 12.3% Poor physical health 10.9% No health insurance 7.4% Visited doctor (checkup) 71.0% Visited dentist 71.5% Cholesterol screening 93.5% Teeth loss 8.2%
Veterans & disability
Veterans Count % Civilian veterans 46 8.3%
Disability % Any disability 13.2% Under 18 8.1% 18–64 years 11.4% 65 and over 16.6%
Health insurance coverage
Type % Private insurance 59.6% Public insurance 50.8% No insurance 16.1% Uninsured under 19 40.3%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 575 93.6% Spanish 10 1.7% Other Indo-European 2 0.3% Asian & Pacific Islander 7 1.2% Other languages 1 0.2%
Place of birth & citizenship
Origin Count % Native born (US) 539 87.8% Born in same state 534 87.0% Born in different state 218 35.5% Foreign born 5 0.8% Naturalized citizen 75 12.2% Not a US citizen 24 32.0%
Ancestry
Ancestry Count % French 113 18.4% Italian 92 15% Polish 33 5.4% Arab 20 3.3%
Ancestry Count % Norwegian 5 0.8% German 3 0.5% Dutch 3 0.5%
Technology access
Metric % of households Computer access 52.3% Internet access 99.4%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 98279
What city is ZIP code 98279 in?
ZIP code 98279 is primarily assigned to Olga, Washington.
What county is ZIP code 98279 in?
ZIP code 98279 falls within San Juan County, Washington.
Does ZIP code 98279 have an older population?
41% of residents in ZIP code 98279 are 65 or older, above the national average of ~17%.
Does ZIP code 98279 have a large retiree population?
56% of households in ZIP code 98279 receive Social Security income, suggesting a significant retiree or disability population.
What is the poverty rate in ZIP code 98279?
25% of residents in ZIP code 98279 live below the poverty line, above the national average.
How educated is the population of ZIP code 98279?
54% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What timezone is ZIP code 98279 in?
ZIP code 98279 observes the PST timezone.
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