Erwin ZIP Codes — Unicoi County, TN

There is one unique ZIP code in Erwin, Tennessee and it is 37650. Area code: 423.

ZIP codes

96.97

sq mi land

0.54

sq mi water

423

area code

Erwin, TN ZIP code map

About Erwin, TN

Erwin is a charming city located in the state of Tennessee. Nestled within Unicoi County, it serves as a gateway to the picturesque landscapes of the Appalachian Mountains. Known for its welcoming community and rich history, Erwin offers a unique blend of small-town charm and natural beauty.

Location & geography

Erwin is situated in the northeastern part of Tennessee, surrounded by stunning mountains and lush valleys. It is approximately 10 miles from the larger city of Johnson City, and about 20 miles from Greeneville and Elizabethton, making it easily accessible to nearby urban amenities. With a land area of 96.97 square miles and a water area of 0.54 square miles, the region showcases a diverse topography featuring rivers and forested areas.

Community & economy

The community in Erwin is known for its friendly and welcoming atmosphere, making it an ideal place for families and retirees. The local economy is supported by various industries, including manufacturing and tourism, with many residents working in nearby cities. Daily life in Erwin often revolves around community events, local businesses, and outdoor activities in the nearby parks and natural areas.

Transportation

Erwin is well connected via U.S. Route 19E, which runs through the city and provides easy access to neighboring areas. The nearest major airport is Tri-Cities Airport, located about 30 miles away, allowing residents to travel conveniently. Public transit options are limited, so most residents depend on personal vehicles for their daily commutes.

History

Founded in the late 19th century, Erwin quickly developed as a vital railroad town. The city played an important role in the timber and textile industries, which were significant drivers of economic growth during its early years. Notable events in Erwin's history include the establishment of local landmarks that still resonate with its vibrant heritage.

Did you know?

A surprising fact about Erwin is that it hosts the annual 'Railroad Days Festival', celebrating its rich heritage in rail transport. Additionally, the city is known for its scenic views of the Nolichucky River and surrounding mountains, making it a favored spot for outdoor enthusiasts.

ZIP codes for Erwin, TN (1)

ZIP code	City	County	Map
37650	Erwin	Unicoi	View map

Demographics & statistics

12,980

Population

44.3

Median age

$51,556

Median household income

$27,418

Per capita income

$138,500

Median home value

$626

Median monthly rent

75.6%

Home ownership

16.8%

Poverty rate

5.2%

Unemployment

4,960

Housing units

14.8%

Bachelor's or higher

Age distribution

Male Female

362

Under 5

347

444

5–9

424

352

10–14

336

313

15–19

300

368

20–24

353

845

25–34

808

714

35–44

683

910

45–54

870

383

55–59

367

501

60–64

479

843

65–74

806

415

75–84

398

183

85+

176

← Male

Female →

Age summary

Group	Count	%
Under 18	2,647	20.4%
18 and over	10,333	79.6%
65 and over	2,821	21.7%
Median age	44.3 years

Race & ethnicity

White 91.1%

Hispanic or Latino 3.9%

Two or more races 2.6%

Other race 2.1%

Black or African American 0.3%

Group	Count	%
White	12,307	91.1%
Hispanic or Latino	531	3.9%
Two or more races	355	2.6%
Other race	281	2.1%
Black or African American	37	0.3%

Household income

Under $10k 8.1%

$10k–$15k 6.6%

$15k–$25k 13.3%

$25k–$35k 10.4%

$35k–$50k 9.8%

$50k–$75k 19.8%

$75k–$100k 10.8%

$100k–$150k 13.8%

$150k–$200k 3.7%

$200k+ 3.5%

Range	% of households
Under $10k	8.1%
$10k–$15k	6.6%
$15k–$25k	13.3%
$25k–$35k	10.4%
$35k–$50k	9.8%
$50k–$75k	19.8%
$75k–$100k	10.8%
$100k–$150k	13.8%
$150k–$200k	3.7%
$200k+	3.5%
Median income	$51,556

Housing

Home values

Under $50k 13.8%

$50k–$100k 15.1%

$100k–$150k 28.3%

$150k–$200k 14.1%

$200k–$300k 16.3%

$300k–$500k 9.3%

$500k–$1M 2.7%

$1M+ 0.5%

Housing overview

Metric	Value
Median home value	$138,500
Median rent / month	$626
Owner occupied	75.6%
Renter occupied	24.4%
Vacant	14.4%
Single-family detached	69.4%
Large apartment buildings	0.7%
Mobile homes	17.0%
Median rooms	5.7
Avg household size (owned)	2.49

Year built

Era	%
2020 or later	0.0%
2010–2019	3.9%
2000–2009	9.2%
1990–1999	12.1%
1980–1989	11.0%
1970–1979	20.9%
1960–1969	8.9%
1950–1959	8.9%
1940–1949	10.7%
1939 or earlier	14.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	8.0%
2 bedrooms	30.8%
3 bedrooms	47.1%
4 bedrooms	11.7%
5+ bedrooms	1.9%

Vehicles per household

Vehicles	% of households
No vehicle	4.5%
1 vehicle	31.0%
2 vehicles	38.3%
3 or more	26.3%

Heating fuel

Fuel type	%
Utility gas	35.6%
Electricity	53.2%
Propane / LP gas	4.8%
Fuel oil	2.0%
Wood	4.0%
No fuel used	0.4%

Households & families

Household type	Count	%
Married-couple family	2,833	52.7%
Cohabiting couple	213	4.0%
Male householder, no spouse	1,118	20.8%
Female householder, no spouse	1,207	22.5%
Households with children under 18	1,642	30.6%
Households with seniors (65+)	1,954	36.4%
Average household size	2.35

Marital status

Status	Male	Female
Never married	26.1%	15.8%
Married	56.6%	56.8%
Separated	1.6%	2.0%
Widowed	4.2%	10.0%
Divorced	11.6%	15.3%

Education

Less than 9th grade 4.7%

Some HS, no diploma 6.7%

HS graduate 39.4%

Some college, no degree 27.7%

Associate's degree 6.9%

Bachelor's degree 8.9%

Graduate / professional 5.8%

Metric	%
HS diploma or higher	88.7%
Bachelor's or higher	14.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	206	8.5%
Kindergarten	76	3.1%
Elementary school	1,156	47.5%
High school	297	12.2%
College / grad school	698	28.7%

Employment

Industry of employment

Education & healthcare 25.4%

Manufacturing 17.6%

Transportation & utilities 10.5%

Construction 10.4%

Retail trade 10.3%

Professional & management 7.1%

Public administration 5.7%

Finance & real estate 4.2%

Arts, food & hospitality 3.7%

Other services 2.9%

Wholesale trade 1.6%

Information 0.3%

Agriculture & mining 0.2%

Occupation

Category	%
Management, business & arts	28.1%
Service	13.9%
Sales & office	22.1%
Natural resources & construction	13.0%
Production & transportation	22.8%

Employment type

Type	%
Private sector	75.7%
Government	17.4%
Self-employed	6.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.4%
Carpool	7.3%
Public transit	0.0%
Walk	4.1%
Other means	0.0%
Avg commute (minutes)	22.4

Poverty

All people 16.8%

Under 18 years 22.2%

18 and over 15.4%

Married-couple families 9.8%

Female-led households 20.6%

Income support

Source	% of households
Social Security	43.7%
Retirement income	20.5%
Supplemental Security	7.4%
Cash public assistance	3.3%
Food stamps / SNAP	15.9%

Health indicators

Condition	%
High blood pressure	44.0%
High cholesterol	38.7%
Heart disease	9.7%
Stroke	4.6%
Asthma	10.9%
Arthritis	35.8%
Kidney disease	3.9%
Pulmonary disease	12.0%
Cancer	8.2%

Behavior / access	%
Binge drinking	12.9%
No physical activity	29.4%
Less than 7 hrs sleep	35.5%
Fair or poor health	20.7%
Poor mental health	17.2%
Poor physical health	14.3%
No health insurance	17.6%
Visited doctor (checkup)	76.6%
Visited dentist	52.9%
Cholesterol screening	90.4%
Teeth loss	21.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	958	9.3%

Disability	%
Any disability	20.8%
Under 18	4.1%
18–64 years	17.1%
65 and over	48.4%

Health insurance coverage

Type	%
Private insurance	64.1%
Public insurance	43.1%
Uninsured under 19	0.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	12,271	94.5%
Spanish	156	1.3%
Other Indo-European	156	1.3%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	12,656	97.5%
Born in same state	12,651	97.5%
Born in different state	9,734	75.0%
Foreign born	5	0.0%
Naturalized citizen	324	2.5%
Not a US citizen	195	60.2%

Ancestry

Ancestry	Count	%
Arab	3,724	28.7%
French	1,731	13.3%
Italian	1,099	8.5%
English	178	1.4%

Ancestry	Count	%
Polish	92	0.7%
Irish	12	0.1%
German	5	0%

Technology access

Metric	% of households
Computer access	41.4%
Internet access	85.3%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Erwin, TN have?

Erwin, TN has one ZIP code: 37650. Each ZIP code serves a distinct delivery area within the city and surrounding region.