Piney Flats ZIP Codes — Sullivan County, TN

There are 2 unique ZIP codes in Piney Flats, Tennessee. Area code: 423.

ZIP codes

29.50

sq mi land

3.89

sq mi water

423

area code

Piney Flats, TN ZIP code map

About Piney Flats, TN

Piney Flats, Tennessee, is a charming community located in Sullivan County. Known for its serene landscapes and small-town ambiance, it offers a friendly atmosphere to residents and visitors alike. The town is an appealing destination for those looking to experience the beauty of East Tennessee.

Location & geography

Piney Flats is situated in the northeastern part of Tennessee, approximately 10 miles southwest of Johnson City and 15 miles northwest of Kingsport. The town encompasses a total area of 29.50 square miles of land and features a water area of 3.89 square miles, contributing to its picturesque surroundings. The terrain is characterized by rolling hills and nearby waterways, making it ideal for outdoor activities.

Community & economy

The character of Piney Flats is defined by its close-knit community and the quaint charm of its neighborhoods. The town has a diverse economic base that includes local businesses, agriculture, and service industries, all of which contribute to a vibrant daily life. Residents enjoy a slower pace, with local parks and community events fostering a sense of belonging.

Transportation

Piney Flats is conveniently located near major highways, including Interstate 81, which connects residents to neighboring cities and attractions. The closest airport is Tri-Cities Airport (TRI), located approximately 15 miles from the town, providing essential air travel services. Local transit options are limited, but the highway access makes it easy for residents to travel for work or leisure.

History

Piney Flats was founded in the early 19th century and has grown from its agricultural roots into a welcoming community. Key industries in the area have included farming, retail, and manufacturing, ensuring the town's continued development over the years. Notable events in Piney Flats’ history include the establishment of its local schools and community center, which have been central to the town's growth.

Did you know?

A surprising fact about Piney Flats is that despite its small size, it is home to a range of outdoor recreational activities, including fishing and hiking. The town's proximity to Boone Lake adds to its appeal for those who enjoy water-based activities.

ZIP codes for Piney Flats, TN (2)

ZIP code	City	County	Map
37686	Piney Flats	Sullivan	View map
37699	Piney Flats	Sullivan	View map

Demographics & statistics

8,848

Population

45.3

Median age

$82,242

Median household income

$43,285

Per capita income

$235,500

Median home value

$1,074

Median monthly rent

78.6%

Home ownership

5.6%

Poverty rate

2.5%

Unemployment

2,840

Housing units

31.5%

Bachelor's or higher

Age distribution

Male Female

134

Under 5

127

5–9

385

10–14

364

280

15–19

264

470

20–24

443

366

25–34

345

511

35–44

483

824

45–54

778

257

55–59

242

348

60–64

328

579

65–74

547

254

75–84

240

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,548	17.5%
18 and over	7,300	82.5%
65 and over	1,711	19.3%
Median age	45.3 years

Race & ethnicity

White 94.3%

Asian 3%

Two or more races 1.9%

Hispanic or Latino 0.5%

Other race 0.2%

Group	Count	%
White	8,387	94.3%
Asian	269	3%
Two or more races	172	1.9%
Hispanic or Latino	45	0.5%
Other race	17	0.2%

Household income

Under $10k 2.8%

$10k–$15k 2.6%

$15k–$25k 5.3%

$25k–$35k 6.4%

$35k–$50k 11.0%

$50k–$75k 14.2%

$75k–$100k 13.3%

$100k–$150k 17.8%

$150k–$200k 9.9%

$200k+ 16.6%

Range	% of households
Under $10k	2.8%
$10k–$15k	2.6%
$15k–$25k	5.3%
$25k–$35k	6.4%
$35k–$50k	11.0%
$50k–$75k	14.2%
$75k–$100k	13.3%
$100k–$150k	17.8%
$150k–$200k	9.9%
$200k+	16.6%
Median income	$82,242

Housing

Home values

Under $50k 9.1%

$50k–$100k 2.7%

$100k–$150k 13.0%

$150k–$200k 15.7%

$200k–$300k 20.0%

$300k–$500k 23.1%

$500k–$1M 13.9%

$1M+ 2.4%

Housing overview

Metric	Value
Median home value	$235,500
Median rent / month	$1,074
Owner occupied	78.6%
Renter occupied	21.4%
Vacant	8.0%
Single-family detached	76.0%
Large apartment buildings	2.0%
Mobile homes	10.5%
Median rooms	6.5
Avg household size (owned)	2.90

Year built

Era	%
2020 or later	2.3%
2010–2019	20.3%
2000–2009	21.1%
1990–1999	27.1%
1980–1989	5.8%
1970–1979	10.6%
1960–1969	4.7%
1950–1959	3.2%
1940–1949	2.0%
1939 or earlier	2.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.3%
2 bedrooms	21.5%
3 bedrooms	51.2%
4 bedrooms	16.4%
5+ bedrooms	7.7%

Vehicles per household

Vehicles	% of households
No vehicle	1.0%
1 vehicle	18.4%
2 vehicles	33.0%
3 or more	47.6%

Heating fuel

Fuel type	%
Utility gas	7.7%
Electricity	87.2%
Propane / LP gas	4.2%
Wood	0.4%

Households & families

Household type	Count	%
Married-couple family	2,195	67.5%
Cohabiting couple	106	3.3%
Male householder, no spouse	482	14.8%
Female householder, no spouse	470	14.4%
Households with children under 18	844	25.9%
Households with seniors (65+)	1,142	35.1%
Average household size	2.72

Marital status

Status	Male	Female
Never married	27.2%	25.3%
Married	58.6%	60.7%
Separated	2.4%	2.0%
Widowed	1.7%	3.8%
Divorced	10.1%	8.3%

Education

Less than 9th grade 4.2%

Some HS, no diploma 4.7%

HS graduate 26.7%

Some college, no degree 21.4%

Associate's degree 11.5%

Bachelor's degree 20.7%

Graduate / professional 10.8%

Metric	%
HS diploma or higher	91.2%
Bachelor's or higher	31.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	82	4.5%
Kindergarten	10	0.6%
Elementary school	668	37.0%
High school	432	24.0%
College / grad school	611	33.9%

Employment

Industry of employment

Education & healthcare 24.4%

Retail trade 18.1%

Manufacturing 15.4%

Professional & management 10.8%

Finance & real estate 6.6%

Construction 6.0%

Transportation & utilities 5.4%

Arts, food & hospitality 4.6%

Other services 3.9%

Wholesale trade 1.9%

Public administration 1.3%

Information 1.2%

Agriculture & mining 0.3%

Occupation

Category	%
Management, business & arts	44.5%
Service	12.0%
Sales & office	21.7%
Natural resources & construction	4.6%
Production & transportation	17.1%

Employment type

Type	%
Private sector	81.8%
Government	8.1%
Self-employed	10.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	87.9%
Carpool	2.7%
Public transit	0.0%
Walk	1.3%
Other means	2.2%
Avg commute (minutes)	24.3

Poverty

All people 5.6%

Under 18 years 3.9%

18 and over 6.0%

Married-couple families 3.8%

Female-led households 10.1%

Income support

Source	% of households
Social Security	41.5%
Retirement income	28.6%
Supplemental Security	3.9%
Cash public assistance	0.2%
Food stamps / SNAP	5.6%

Health indicators

Condition	%
High blood pressure	38.2%
High cholesterol	42.0%
Heart disease	7.1%
Stroke	3.2%
Asthma	10.6%
Arthritis	31.1%
Kidney disease	2.9%
Pulmonary disease	8.5%
Cancer	7.3%

Behavior / access	%
Binge drinking	14.5%
No physical activity	22.9%
Less than 7 hrs sleep	36.5%
Fair or poor health	15.1%
Poor mental health	16.3%
Poor physical health	11.3%
No health insurance	14.4%
Visited doctor (checkup)	75.6%
Visited dentist	59.6%
Cholesterol screening	91.2%
Teeth loss	16.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	577	7.9%

Disability	%
Any disability	17.6%
Under 18	5.0%
18–64 years	18.7%
65 and over	25.4%

Health insurance coverage

Type	%
Private insurance	64.2%
Public insurance	39.9%
Uninsured under 19	0.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	8,587	97.1%
Spanish	3	0.0%
Other Indo-European	3	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	8,718	98.5%
Born in same state	8,718	98.5%
Born in different state	4,816	54.4%
Foreign born	0	0.0%
Naturalized citizen	130	1.5%
Not a US citizen	86	66.2%

Ancestry

Ancestry	Count	%
Italian	1,609	18.2%
French	1,105	12.5%
Arab	933	10.5%
English	610	6.9%

Ancestry	Count	%
German	88	1%
Dutch	61	0.7%
Polish	41	0.5%

Technology access

Metric	% of households
Computer access	36.8%
Internet access	92.6%

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

Frequently asked questions

What ZIP codes does Piney Flats, TN have?

Piney Flats, TN has two ZIP codes: 37686 and 37699. Each ZIP code serves a distinct delivery area within the city and surrounding region.