Bluff City ZIP Code List — Sullivan County, TN

There is one unique ZIP code in Bluff City, Tennessee and it is 37618. Area code: 423.

ZIP codes

69.31

sq mi land

0.71

sq mi water

423

area code

Bluff City, TN ZIP code map

About Bluff City, TN

Bluff City, Tennessee, is a small yet charming city nestled in Sullivan County. Known for its picturesque landscapes and friendly community, Bluff City offers residents and visitors a peaceful retreat. With a ZIP code of 37618, it serves as a welcoming gateway to the beauty of the Appalachian region.

Location & geography

Located in northeastern Tennessee, Bluff City is surrounded by several vibrant communities, including Bristol, which is approximately 8 miles to the northeast, and Kingsport, about 15 miles to the southwest. The city covers a total area of 69.31 square miles of land, complemented by a water area of 0.71 square miles. The terrain is characterized by rolling hills and lush greenery, creating a scenic backdrop for outdoor activities.

Community & economy

Bluff City has a tight-knit community where residents often gather for local events and festivals, fostering a sense of belonging and connection. The local economy is supported by small businesses, agriculture, and various service industries that contribute to daily life in the area. The friendly atmosphere and commitment to community engagement make Bluff City a great place to live and visit.

Transportation

Bluff City is conveniently located near significant highways, including Interstate 81, which provides direct access to larger cities in the region. The nearest major airport is Tri-Cities Airport, located approximately 20 miles from downtown Bluff City. Public transportation options are limited, emphasizing the community's reliance on personal vehicles for travel.

History

Bluff City was founded in the early 20th century, evolving as a small town primarily focused on agriculture and local industry. Over the years, it has hosted various regional events and gatherings that highlight its cultural heritage. Bluff City's growth has been steady, reflecting the changing dynamics in Sullivan County and the surrounding areas.

Did you know?

One surprising fact about Bluff City is that it retains a small-town charm while being close to larger urban centers. It's also noteworthy that the city has embraced sustainability initiatives to preserve its natural landscapes.

ZIP codes for Bluff City, TN (1)

ZIP code	City	County	Map
37618	Bluff City	Sullivan	View map

Demographics & statistics

12,792

Population

45.8

Median age

$53,158

Median household income

$31,118

Per capita income

$161,300

Median home value

$879

Median monthly rent

77.8%

Home ownership

15.7%

Poverty rate

7.9%

Unemployment

4,906

Housing units

17.4%

Bachelor's or higher

Age distribution

Male Female

401

Under 5

409

282

5–9

288

472

10–14

480

280

15–19

286

180

20–24

183

770

25–34

785

716

35–44

730

818

45–54

832

447

55–59

455

526

60–64

536

824

65–74

839

483

75–84

491

138

85+

141

← Male

Female →

Age summary

Group	Count	%
Under 18	2,637	20.6%
18 and over	10,155	79.4%
65 and over	2,916	22.8%
Median age	45.8 years

Race & ethnicity

White 94.4%

Two or more races 2.3%

Hispanic or Latino 1.6%

Other race 1%

Black or African American 0.6%

Asian 0.1%

Group	Count	%
White	12,278	94.4%
Two or more races	296	2.3%
Hispanic or Latino	208	1.6%
Other race	135	1%
Black or African American	72	0.6%
Asian	9	0.1%

Household income

Under $10k 4.2%

$10k–$15k 4.9%

$15k–$25k 8.4%

$25k–$35k 11.2%

$35k–$50k 16.1%

$50k–$75k 22.8%

$75k–$100k 13.5%

$100k–$150k 13.8%

$150k–$200k 3.0%

$200k+ 2.1%

Range	% of households
Under $10k	4.2%
$10k–$15k	4.9%
$15k–$25k	8.4%
$25k–$35k	11.2%
$35k–$50k	16.1%
$50k–$75k	22.8%
$75k–$100k	13.5%
$100k–$150k	13.8%
$150k–$200k	3.0%
$200k+	2.1%
Median income	$53,158

Housing

Home values

Under $50k 11.5%

$50k–$100k 14.5%

$100k–$150k 19.1%

$150k–$200k 15.9%

$200k–$300k 26.3%

$300k–$500k 9.7%

$500k–$1M 2.1%

$1M+ 1.0%

Housing overview

Metric	Value
Median home value	$161,300
Median rent / month	$879
Owner occupied	77.8%
Renter occupied	22.2%
Vacant	10.5%
Single-family detached	66.4%
Large apartment buildings	1.9%
Mobile homes	24.6%
Median rooms	5.9
Avg household size (owned)	2.27

Year built

Era	%
2020 or later	0.1%
2010–2019	8.3%
2000–2009	15.4%
1990–1999	15.2%
1980–1989	14.4%
1970–1979	18.2%
1960–1969	10.4%
1950–1959	6.5%
1940–1949	4.0%
1939 or earlier	7.5%

Bedrooms

Size	% of units
No bedroom (studio)	4.5%
1 bedroom	4.5%
2 bedrooms	22.2%
3 bedrooms	54.6%
4 bedrooms	12.7%
5+ bedrooms	1.6%

Vehicles per household

Vehicles	% of households
No vehicle	3.2%
1 vehicle	26.1%
2 vehicles	39.8%
3 or more	30.8%

Heating fuel

Fuel type	%
Utility gas	5.1%
Electricity	85.0%
Propane / LP gas	3.8%
Fuel oil	1.0%
Wood	4.1%
Solar	0.3%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	2,997	54.6%
Cohabiting couple	261	4.8%
Male householder, no spouse	1,034	18.9%
Female householder, no spouse	1,192	21.7%
Households with children under 18	1,563	28.5%
Households with seniors (65+)	2,045	37.3%
Average household size	2.33

Marital status

Status	Male	Female
Never married	20.9%	11.8%
Married	55.7%	60.0%
Separated	2.1%	2.1%
Widowed	4.1%	15.3%
Divorced	17.1%	10.9%

Education

Less than 9th grade 4.4%

Some HS, no diploma 7.7%

HS graduate 38.7%

Some college, no degree 21.6%

Associate's degree 10.2%

Bachelor's degree 10.7%

Graduate / professional 6.7%

Metric	%
HS diploma or higher	87.8%
Bachelor's or higher	17.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	66	2.8%
Kindergarten	148	6.3%
Elementary school	1,265	54.2%
High school	405	17.4%
College / grad school	450	19.3%

Employment

Industry of employment

Manufacturing 17.5%

Education & healthcare 16.9%

Retail trade 15.4%

Professional & management 9.6%

Construction 8.3%

Finance & real estate 6.8%

Other services 6.6%

Public administration 6.0%

Arts, food & hospitality 5.4%

Transportation & utilities 3.3%

Wholesale trade 2.4%

Information 1.1%

Agriculture & mining 0.8%

Occupation

Category	%
Management, business & arts	29.1%
Service	14.9%
Sales & office	26.3%
Natural resources & construction	8.2%
Production & transportation	21.5%

Employment type

Type	%
Private sector	77.9%
Government	14.6%
Self-employed	7.4%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	81.5%
Carpool	8.5%
Public transit	0.0%
Walk	1.9%
Other means	1.1%
Avg commute (minutes)	27.0

Poverty

All people 15.7%

Under 18 years 30.8%

18 and over 11.9%

Married-couple families 5.3%

Female-led households 41.6%

Income support

Source	% of households
Social Security	41.2%
Retirement income	27.6%
Supplemental Security	6.1%
Cash public assistance	1.8%
Food stamps / SNAP	13.4%

Health indicators

Condition	%
High blood pressure	40.4%
High cholesterol	40.8%
Heart disease	8.0%
Stroke	3.7%
Asthma	11.1%
Arthritis	33.0%
Kidney disease	3.3%
Pulmonary disease	10.1%
Cancer	7.5%

Behavior / access	%
Binge drinking	13.7%
No physical activity	26.4%
Less than 7 hrs sleep	37.5%
Fair or poor health	18.2%
Poor mental health	17.3%
Poor physical health	12.9%
No health insurance	16.7%
Visited doctor (checkup)	75.7%
Visited dentist	54.4%
Cholesterol screening	90.2%
Teeth loss	20.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	978	9.6%

Disability	%
Any disability	18.8%
Under 18	7.5%
18–64 years	15.8%
65 and over	36.6%

Health insurance coverage

Type	%
Private insurance	52.6%
Public insurance	50.8%
Uninsured under 19	2.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	11,982	93.7%
Spanish	46	0.4%
Other Indo-European	46	0.4%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	12,603	98.5%
Born in same state	12,562	98.2%
Born in different state	7,682	60.1%
Foreign born	41	0.3%
Naturalized citizen	189	1.5%
Not a US citizen	36	19.0%

Ancestry

Ancestry	Count	%
French	2,570	20.1%
Arab	2,395	18.7%
Italian	1,057	8.3%

Ancestry	Count	%
English	142	1.1%
Polish	38	0.3%
German	27	0.2%

Technology access

Metric	% of households
Computer access	42.9%
Internet access	87.1%

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

Frequently asked questions

What is the ZIP code for Bluff City, TN?

Bluff City, TN has one ZIP code: 37618.

What is the main ZIP code for Bluff City, TN?

The primary ZIP code for Bluff City, TN is 37618. The city uses area code 423 for phone service.

What county is Bluff City, TN in?

Bluff City is located in Sullivan County, Tennessee.

How many ZIP codes are in Bluff City, TN?

Bluff City, TN has 1 ZIP code.

What ZIP code covers downtown Bluff City and the historic Main Street area in Sullivan County?

Downtown Bluff City and the Main Street historic district are located in ZIP code 37618, which serves as the primary postal code for this Sullivan County municipality.

If I'm sending mail to a business in Bluff City near the city center, what ZIP code should I use?

You should use ZIP code 37618, as it is the single ZIP code that encompasses Bluff City's central business district and residential areas.