Piney Flats, TN · standard

ZIP Code 37686

Sullivan County, Tennessee — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

7,072
93/sq mi
$84,264
Median income
$352,200
Median home value
35.5%
Bachelor's or higher

The verdict

Piney Flats pairs an above-median household income with above-median home values, in a rural, homeowner-dominated area.

Top 33%
household income, US ZIPs
Top 26%
home value, US ZIPs
93
people per sq mi
77%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 37686 against every reporting US ZIP.

ZIP code 37686 is classified by USPS as a standard delivery area and covers roughly 76.5 square miles in Piney Flats, Sullivan County, Tennessee. The area is home to 7,072 residents, producing a population density of 93 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 37686 against Tennessee and the nation.

On the economic side, the median household income for ZIP 37686 sits at $84,264 (27% above the Tennessee average), while per-capita income is $43,900. The poverty rate stands at 5.4% and the unemployment rate at 2.3%. On housing, the median home value is $352,200 (42% above the state average) with median rent at $1,032 per month, and 76.5% of occupied units are owner-occupied, a direct signal of whether 37686 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 35.5% of adults hold a bachelor's degree or higher, the median age is 44.1, and the average commute is 24 minutes. We also surface 9 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Sullivan County, so you can benchmark 37686 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 37686

Top 5 sectors by establishment count

Which industries have the most business establishments in ZIP 37686.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 37686, Piney Flats, TN · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

7,072

Population

76.5

Area (sq mi)

93

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 37686?

44.1

Median Age

52.2%

Male

47.8%

Female

3.7%

Foreign-Born

White 91.4%
African American 1.2%
Asian 3.7%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 2.1%
Hispanic or Latino 3.3%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$84,264

Median Household Income

+27% vs state

$43,900

Per Capita Income

5.4%

Poverty Rate

2.3%

Unemployment Rate

23.8 min

Mean Commute Time

How ZIP 37686 ranks nationally

Household income vs. every US ZIP code

Median household income — the full national distribution, with this ZIP marked

$84,264 Top 33% higher than 67% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 64.3%
Bachelor's Degree or Higher 35.5%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

3,943

Total Housing Units

3,659

Occupied Units

284

Vacant Units

2.59

Avg Household Size

Occupancy Type

Owner 76.5%
Renter 23.5%

$352,200

Median Home Value

+42% vs state

$1,032

Median Rent

1997

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+1.7%

YoY Change (2024)

256

HPI Index (2000 = 100)

+156%

Total Change Since 2000

Home values in ZIP 37686 have increased 1.7% over the past year (2024). Since 2000, this ZIP has seen +156% cumulative appreciation.

Year Annual Change HPI Index
2020 +0.4% 155
2021 +17.4% 182
2022 +15.8% 210
2023 +19.6% 251
2024 +1.7% 256

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 162 business establishments in ZIP 37686, employing approximately 3,302 people with a combined annual payroll of $173,983,000.

162

Businesses

3,302

Employees

$174.0M

Annual Payroll

12

Industry Sectors

Industry Establishments % of Total
Retail trade 23 14.2%
Manufacturing 21 13.0%
Construction 20 12.3%
Wholesale trade 18 11.1%
Other services (except public administration) 13 8.0%
Professional, scientific, and technical services 11 6.8%
Administrative and support and waste management and remediation services 11 6.8%
Transportation and warehousing 10 6.2%
Accommodation and food services 10 6.2%
Finance and insurance 9 5.6%
Real estate and rental and leasing 6 3.7%
Health care and social assistance 6 3.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 37686 vs 37617 →

ZIP 37686 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 37686 ranks #7 by population — useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 37686 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 37686 ranks the highest of 8 neighboring ZIPs — local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
37617 Blountville, TN 14,251 6.3 mi
37694 Watauga, TN 1,955 5.4 mi
37601 Johnson City, TN 36,182 7.8 mi
37615 Johnson City, TN 19,560 6.6 mi
37618 Bluff City, TN 12,747 7.8 mi
37663 Kingsport, TN 14,617 8.0 mi
37614 Johnson City, TN 2,107 9.8 mi
37604 Johnson City, TN 34,245 10.1 mi
37682 Milligan College, TN 667 10.2 mi

More ZIP Codes in Sullivan County

Frequently Asked Questions

What county is ZIP code 37686 in?
ZIP code 37686 (Piney Flats) is located in Sullivan County, Tennessee. Sullivan County contains multiple ZIP codes, see the full list at /counties/sullivan-tn.
What is the population of ZIP code 37686?
ZIP code 37686 in Piney Flats, TN has a population of 7,072 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 37686?
The median household income in ZIP 37686 is $84,264, which is 10% above the national average of $76,288.
What is the average home value in ZIP 37686?
The median home value in ZIP 37686 is $352,200, which is 27% above the national average of $278,155.
What is the demographic makeup of ZIP 37686?
The largest racial group in ZIP 37686 is White at 91.4%. Hispanic or Latino residents make up 3.3% of the population.
How many businesses are in ZIP code 37686?
ZIP code 37686 has 162 business establishments employing approximately 3,302 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 37686?
The top industries by establishment count in ZIP 37686 are: Retail trade (23), Manufacturing (21), Construction (20). There are 12 industry sectors represented in total.
How have home values changed in ZIP code 37686?
According to the FHFA House Price Index, home values in ZIP 37686 increased by 1.7% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 156%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 37686?
In ZIP code 37686, 64.3% of residents aged 25+ have a high school diploma or higher, and 35.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 37686?
The mean commute time for workers in ZIP code 37686 is 23.8 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 37686?
In ZIP code 37686, approximately 76.5% of occupied housing units are owner-occupied and 23.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 37686?
The poverty rate in ZIP code 37686 is 5.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Official Data Resources for Piney Flats, TN

Verify and explore additional data for this area using these official government sources.