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Washington ZIP Codes
Adams County
Washtucna, WA
99371
99371 ZIP Code — Washtucna, WA
Adams County, Washington
ZIP code 99371 is located in
Washtucna ,
Washington ,
within Adams County .
It covers approximately 215.89 square miles and serves a population of
309 residents.
This is a standard ZIP code in the Pacific (PT) timezone,
served by area code 509 .
About ZIP code 99371
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $125,000. Owner-occupancy sits near the national average at 68%.
Median household income is $52,857. Poverty affects 26% of residents, above the national average. 38% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 26 minutes is near the national average.
College attainment at 19% is below the national average, consistent with a trades and production-oriented local economy.
Overall, ZIP code 99371 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, and a significant Social Security-dependent population.
99371 ZIP code map
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Cities in ZIP code 99371
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Demographics
updated 05/2026
Population
Total population
309
Population density
1 / sq mi
State FIPS
53
County FIPS
001
Geography
Land area
215.89 sq mi
Water area
0.75 sq mi
Latitude
46.8947
Longitude
-118.2620
Timezone
Pacific (PT)
Area code
509
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
42.9%
45.3%
31.7%
$50k – $100k
43.6%
35.1%
30.6%
$100k – $200k
13.5%
17.0%
27.1%
Over $200k
0.0%
2.6%
10.6%
Demographics & statistics
$52,857
Median household income
$125,000
Median home value
18.5%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 66 21.4% 18 and over 243 78.6% 65 and over 63 20.4% Median age 42.6 years
Race & ethnicity
American Indian / Alaska Native
6.4%
Group Count % White 286 91.7% American Indian / Alaska Native 20 6.4% Hispanic or Latino 3 1% Two or more races 3 1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
42.9%
45.3%
31.7%
$50k – $100k
43.6%
35.1%
30.6%
$100k – $200k
13.5%
17.0%
27.1%
Over $200k
0.0%
2.6%
10.6%
Range % of households Under $10k 9.7% $10k–$15k 15.3% $15k–$25k 4.8% $25k–$35k 5.6% $35k–$50k 12.9% $50k–$75k 17.7% $75k–$100k 8.9% $100k–$150k 18.5% $150k–$200k 4.8% $200k+ 1.6% Median income $52,857
Housing
Housing overview
Metric Value Median home value $125,000 Median rent / month $775 Owner occupied 67.7% Renter occupied 32.3% Vacant 47.9% Single-family detached 85.3% Large apartment buildings 0.0% Mobile homes 14.3% Median rooms 5.2 Avg household size (owned) 2.52
Year built
Era % 2020 or later 1.7% 2010–2019 0.0% 2000–2009 5.5% 1990–1999 0.8% 1980–1989 8.8% 1970–1979 7.6% 1960–1969 5.9% 1950–1959 9.7% 1940–1949 6.7% 1939 or earlier 53.4%
Bedrooms
Size % of units No bedroom (studio) 1.7% 1 bedroom 31.5% 2 bedrooms 17.6% 3 bedrooms 26.9% 4 bedrooms 15.5% 5+ bedrooms 6.7%
Vehicles per household
Vehicles % of households No vehicle 0.0% 1 vehicle 22.6% 2 vehicles 41.9% 3 or more 35.5%
Heating fuel
Fuel type % Utility gas 1.6% Electricity 66.9% Propane / LP gas 1.6% Fuel oil 15.3% Wood 4.8% No fuel used 3.2%
Households & families
Household type Count % Married-couple family 73 58.9% Cohabiting couple 7 5.6% Male householder, no spouse 19 15.3% Female householder, no spouse 25 20.2% Households with children under 18 38 30.6% Households with seniors (65+) 44 35.5% Average household size 2.49
Marital status
Status Male Female Never married 28.2% 14.4% Married 58.0% 67.4% Separated 0.0% 0.0% Widowed 6.1% 12.9% Divorced 7.6% 5.3%
Education
Some college, no degree
26.8%
Graduate / professional
5.4%
Metric % HS diploma or higher 92.2% Bachelor's or higher 18.5%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 3 5.7% Kindergarten 1 1.9% Elementary school 15 28.3% High school 21 39.6% College / grad school 13 24.5%
Employment
Industry of employment
Agriculture & mining
34.4%
Education & healthcare
14.6%
Public administration
7.3%
Arts, food & hospitality
6.3%
Transportation & utilities
3.1%
Finance & real estate
3.1%
Professional & management
1.0%
Occupation
Category % Management, business & arts 59.4% Service 4.2% Sales & office 17.7% Natural resources & construction 17.7% Production & transportation 1.0%
Employment type
Type % Private sector 62.5% Government 31.3% Self-employed 6.3% Unpaid family workers 0.0%
Commute
Method % Drive alone 81.3% Carpool 5.2% Public transit 0.0% Walk 3.1% Work from home 10.4% Other means 0.0% Avg commute (minutes) 25.8
Poverty
Married-couple families
15.1%
Female-led households
0.0%
Income support
Source % of households Social Security 37.9% Retirement income 25.0% Supplemental Security 10.5% Cash public assistance 0.8% Food stamps / SNAP 11.3%
Health indicators
Condition % Obesity 33.3% High blood pressure 37.9% High cholesterol 40.0% Diabetes 13.1% Heart disease 9.4% Stroke 4.3% Asthma 11.2% Arthritis 33.1% Kidney disease 4.0% Pulmonary disease 9.3% Cancer 9.0%
Behavior / access % Smoking 16.5% Binge drinking 13.7% No physical activity 23.2% Less than 7 hrs sleep 30.7% Depression 23.9% Fair or poor health 17.2% Poor mental health 14.3% Poor physical health 13.7% No health insurance 10.6% Visited doctor (checkup) 71.7% Visited dentist 62.7% Cholesterol screening 90.7% Teeth loss 14.8%
Veterans & disability
Veterans Count % Civilian veterans 14 5.8%
Disability % Any disability 14.9% Under 18 4.5% 18–64 years 11.7% 65 and over 34.9%
Health insurance coverage
Type % Private insurance 59.5% Public insurance 48.2% No insurance 3.6% Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 285 92.2% Spanish 0 0.0% Other Indo-European 0 0.0% Asian & Pacific Islander 0 0.0% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 307 99.4% Born in same state 307 99.4% Born in different state 226 73.1% Foreign born 0 0.0% Naturalized citizen 2 0.6% Not a US citizen 2 100.0%
Ancestry
Ancestry Count % Italian 54 17.5% French 19 6.1% Polish 18 5.8%
Ancestry Count % German 8 2.6% Arab 4 1.3% English 1 0.3%
Technology access
Metric % of households Computer access 40.1% Internet access 91.1%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 99371
What city is ZIP code 99371 in?
ZIP code 99371 is primarily assigned to Washtucna, Washington.
What county is ZIP code 99371 in?
ZIP code 99371 falls within Adams County, Washington.
What is the poverty rate in ZIP code 99371?
26% of residents in ZIP code 99371 live below the poverty line, above the national average.
Does ZIP code 99371 have a large retiree population?
38% of households in ZIP code 99371 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 99371?
The median home value in ZIP code 99371 is $125,000.
What is the population of ZIP code 99371?
ZIP code 99371 has an estimated population of 309 residents, with a density of 1 people per square mile.
What timezone is ZIP code 99371 in?
ZIP code 99371 observes the PST timezone.
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