ZIP code · Piney Flats · Tennessee · United States
ZIP code 37686 — Piney Flats
ZIP code 37686 serves Piney Flats, Tennessee.
- Postal code
- 37686Single source Value from one source, not cross-checked.
- City
- Piney Flats
- County
- Sullivan FIPS 47163
- State
- Tennessee
- Country
- United States
- Coordinates
- 36.4461, -82.3340 — precision precise (locality)
View on OpenStreetMap - Population
- 9,149 (ZCTA, ACS 5-year)
- Population density
- 311 / sq mi
- Land area
- 29.5 sq mi (76.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $84,894
- Per-capita income
- $43,897
- Median age
- 45
- Households
- 3,470
- Housing units
- 3,790
- Median home value
- $306,300
- Median gross rent
- $1,117 / month
- Congressional district
- TN-1 (119th Congress)
- USDA hardiness zone
- 7b (5 to 10 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area code
- 423 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 37686 with another ZIP · ZIPs within 25 miles · distance from 37686
Map of ZIP code 37686
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 26°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 47 | 51 | 59 | 69 | 77 | 84 | 86 | 86 | 81 | 70 | 59 | 50 |
| Avg low °F | 26 | 29 | 35 | 43 | 52 | 61 | 65 | 63 | 56 | 44 | 34 | 29 |
| Precip in | 3.6 | 3.8 | 4.0 | 3.8 | 3.8 | 3.9 | 5.0 | 3.8 | 2.8 | 2.5 | 3.1 | 3.8 |
NOAA 1991–2020 climate normals from the nearest station: BRISTOL TRI CITY AP (4.3 mi) · NOAA NCEI
Places in ZIP 37686
- 1 colleges & universities
- 1 hospitals & clinics
- 1 supermarkets
- 17 restaurants & cafés
- 4 playgrounds
- 2 gyms & sports centres
- 1 post offices
- 12 places of worship
- 1 banks
- 3 gas stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page