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Tennessee ZIP Codes
Grainger County
Washburn, TN
37888
37888 ZIP Code — Washburn, TN
Grainger County, Tennessee
ZIP code 37888 is located in
Washburn ,
Tennessee ,
within Grainger County .
It covers approximately 55.74 square miles and serves a population of
3,623 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 865 .
About ZIP code 37888
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $117,400. Owner-occupancy is high at 83%, well above the national average.
Median household income is $46,250. Poverty affects 19% of residents, above the national average. SNAP benefit usage at 18% of households reflects economic stress in the area. 42% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 37 minutes suggests many residents work outside the immediate area.
College attainment at 11% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (31%) compared to national benchmarks.
Overall, ZIP code 37888 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.
37888 ZIP code map
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Cities in ZIP code 37888
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
3,623
Population density
65 / sq mi
State FIPS
47
County FIPS
057
Geography
Land area
55.74 sq mi
Water area
1.35 sq mi
Latitude
36.3075
Longitude
-83.6053
Timezone
Eastern (ET)
Area code
865
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
61.6%
56.2%
45.7%
$50k – $100k
27.8%
31.4%
30.9%
$100k – $200k
8.5%
10.3%
18.3%
Over $200k
2.1%
2.1%
5.1%
Demographics & statistics
$46,250
Median household income
$117,400
Median home value
10.5%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 750 20.7% 18 and over 2,873 79.3% 65 and over 611 16.9% Median age 47.8 years
Race & ethnicity
Group Count % White 3,509 95.5% Two or more races 102 2.8% Hispanic or Latino 50 1.4% Asian 12 0.3%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
61.6%
56.2%
45.7%
$50k – $100k
27.8%
31.4%
30.9%
$100k – $200k
8.5%
10.3%
18.3%
Over $200k
2.1%
2.1%
5.1%
Range % of households Under $10k 9.8% $10k–$15k 10.6% $15k–$25k 8.8% $25k–$35k 10.4% $35k–$50k 12.6% $50k–$75k 22.4% $75k–$100k 9.8% $100k–$150k 11.7% $150k–$200k 1.4% $200k+ 2.4% Median income $46,250
Housing
Housing overview
Metric Value Median home value $117,400 Median rent / month $0 Owner occupied 83.1% Renter occupied 16.9% Vacant 21.8% Single-family detached 73.2% Large apartment buildings 0.0% Mobile homes 24.8% Median rooms 5.7 Avg household size (owned) 3.03
Year built
Era % 2020 or later 0.9% 2010–2019 5.0% 2000–2009 8.8% 1990–1999 22.3% 1980–1989 15.8% 1970–1979 10.4% 1960–1969 8.7% 1950–1959 9.5% 1940–1949 1.4% 1939 or earlier 17.3%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 5.7% 2 bedrooms 37.7% 3 bedrooms 35.8% 4 bedrooms 19.4% 5+ bedrooms 1.5%
Vehicles per household
Vehicles % of households No vehicle 3.8% 1 vehicle 18.2% 2 vehicles 44.7% 3 or more 33.3%
Heating fuel
Fuel type % Utility gas 2.6% Electricity 72.6% Propane / LP gas 8.6% Wood 16.2%
Households & families
Household type Count % Married-couple family 670 52.7% Cohabiting couple 26 2.0% Male householder, no spouse 196 15.4% Female householder, no spouse 380 29.9% Households with children under 18 367 28.9% Households with seniors (65+) 514 40.4% Average household size 2.85
Marital status
Status Male Female Never married 36.4% 19.6% Married 45.8% 48.8% Separated 2.5% 2.3% Widowed 4.4% 18.0% Divorced 10.9% 11.3%
Education
Some HS, no diploma
16.2%
Some college, no degree
13.9%
Graduate / professional
6.8%
Metric % HS diploma or higher 73.9% Bachelor's or higher 10.5%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 0 0.0% Kindergarten 15 2.5% Elementary school 288 48.6% High school 196 33.1% College / grad school 93 15.7%
Employment
Industry of employment
Education & healthcare
28.6%
Transportation & utilities
11.7%
Professional & management
5.6%
Agriculture & mining
2.7%
Arts, food & hospitality
2.6%
Occupation
Category % Management, business & arts 25.8% Service 14.0% Sales & office 13.2% Natural resources & construction 25.0% Production & transportation 21.9%
Employment type
Type % Private sector 72.4% Government 12.6% Self-employed 15.1% Unpaid family workers 0.0%
Commute
Method % Drive alone 72.4% Carpool 21.6% Public transit 0.0% Walk 0.0% Work from home 6.1% Other means 0.0% Avg commute (minutes) 36.9
Poverty
Married-couple families
11.6%
Female-led households
34.7%
Income support
Source % of households Social Security 42.4% Retirement income 22.3% Supplemental Security 6.6% Cash public assistance 3.7% Food stamps / SNAP 17.8%
Health indicators
Condition % Obesity 39.8% High blood pressure 42.1% High cholesterol 38.5% Diabetes 14.8% Heart disease 9.2% Stroke 4.5% Asthma 11.4% Arthritis 34.1% Kidney disease 3.7% Pulmonary disease 12.9% Cancer 7.0%
Behavior / access % Smoking 30.6% Binge drinking 13.8% No physical activity 32.3% Less than 7 hrs sleep 36.6% Depression 29.4% Fair or poor health 23.2% Poor mental health 19.1% Poor physical health 15.6% No health insurance 20.7% Visited doctor (checkup) 74.3% Visited dentist 45.6% Cholesterol screening 88.1% Teeth loss 25.9%
Veterans & disability
Veterans Count % Civilian veterans 173 6.0%
Disability % Any disability 20.8% Under 18 1.1% 18–64 years 23.5% 65 and over 34.9%
Health insurance coverage
Type % Private insurance 61.7% Public insurance 51.0% No insurance 7.6% Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 3,410 94.1% Spanish 71 2.1% Other Indo-European 71 2.1% Asian & Pacific Islander 0 0.0% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 3,426 94.6% Born in same state 3,331 91.9% Born in different state 2,514 69.4% Foreign born 95 2.6% Naturalized citizen 197 5.4% Not a US citizen 55 27.9%
Ancestry
Ancestry Count % Arab 821 22.7% Italian 426 11.8% French 421 11.6%
Ancestry Count % English 95 2.6% Polish 10 0.3%
Technology access
Metric % of households Computer access 35.1% Internet access 75.6%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 37888
What city is ZIP code 37888 in?
ZIP code 37888 is primarily assigned to Washburn, Tennessee.
What county is ZIP code 37888 in?
ZIP code 37888 falls within Grainger County, Tennessee.
How educated is the population of ZIP code 37888?
11% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What is the poverty rate in ZIP code 37888?
19% of residents in ZIP code 37888 live below the poverty line, above the national average.
Is ZIP code 37888 mostly owner-occupied?
83% of occupied units in ZIP code 37888 are owner-occupied, well above the national average.
Does ZIP code 37888 have a large retiree population?
42% of households in ZIP code 37888 receive Social Security income, suggesting a significant retiree or disability population.
What timezone is ZIP code 37888 in?
ZIP code 37888 observes the EST timezone.
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