ZIP code · Thorn Hill · Tennessee · United States
ZIP code 37881 — Thorn Hill
ZIP code 37881 serves Thorn Hill, Tennessee.
- Postal code
- 37881Single source Value from one source, not cross-checked.
- City
- Thorn Hill
- County
- Grainger FIPS 47057
- State
- Tennessee
- Country
- United States
- Coordinates
- 36.3917, -83.3660 — precision precise (locality)
View on OpenStreetMap - Population
- 1,874 (ZCTA, ACS 5-year)
- Population density
- 26 / sq mi
- Land area
- 71.9 sq mi (186.1 km²) (ZCTA, ACS 5-year)
- Median household income
- $44,583
- Per-capita income
- $34,427
- Median age
- 56.4
- Households
- 802
- Housing units
- 1,073
- Median home value
- $124,000
- Median gross rent
- $805 / month
- Congressional districts
- TN-2 (also TN-1) (119th Congress)
- USDA hardiness zone
- 7a (0 to 5 °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 37881 with another ZIP · ZIPs within 25 miles · distance from 37881
Map of ZIP code 37881
Climate — monthly normals
Warmest month Jul (avg high 85°F), coldest Jan (avg low 23°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 44 | 48 | 57 | 68 | 75 | 82 | 85 | 84 | 79 | 69 | 57 | 47 |
| Avg low °F | 23 | 26 | 32 | 40 | 50 | 59 | 63 | 62 | 55 | 41 | 31 | 26 |
| Precip in | 4.7 | 5.1 | 5.3 | 5.3 | 4.2 | 5.0 | 5.2 | 3.8 | 3.8 | 3.1 | 3.8 | 5.3 |
NOAA 1991–2020 climate normals from the nearest station: TAZEWELL (11.9 mi) · NOAA NCEI
Places in ZIP 37881
- 1 post offices
- 8 places of worship
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