Home > TN > Sullivan County > Piney Flats > Zip 37686

Zip Code 37686 — Piney Flats, TN

37686 is a ZIP Code associated with Piney Flats, TN, located within Sullivan. The postal region supports an estimated population of 9,495 residents across Data Pending housing units, with a population density of 124.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (36.441750, -82.346390)

Data MetricLocal Statistic
Postal / Zip Code37686
Primary CityPiney Flats
State / ProvinceTN
CountySullivan
Total Population9,495
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density124.4 people/sq mi
TimezoneAmerica/New_York

How 37686 Compares

MetricZIP 37686Sullivan CountyTN State Average
Population9,495163,5157,058,868
Median IncomeData PendingN/AN/A
Population Density124.4 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 37694Watauga5.5 mi1,729N/A
Zip 37617Blountville6.4 mi14,744N/A
Zip 37615Johnson City6.6 mi22,821N/A
Zip 37618Bluff City7.8 mi12,548N/A
Zip 37663Kingsport7.9 mi14,230N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →