ZIP code · Thornton · Kentucky · United States
ZIP code 41855 — Thornton
ZIP code 41855 serves Thornton, Kentucky.
- Postal code
- 41855Single source Value from one source, not cross-checked.
- City
- Thornton
- County
- Letcher FIPS 21133
- State
- Kentucky
- Country
- United States
- Coordinates
- 37.1906, -82.7851 — precision precise (locality)
View on OpenStreetMap - Population
- 751 (ZCTA, ACS 5-year)
- Population density
- 101 / sq mi
- Land area
- 7.4 sq mi (19.3 km²) (ZCTA, ACS 5-year)
- Median household income
- $56,503
- Per-capita income
- $24,223
- Median age
- 54.2
- Households
- 313
- Housing units
- 439
- Congressional district
- KY-5 (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
- 502 (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 41855 with another ZIP · ZIPs within 25 miles · distance from 41855
Map of ZIP code 41855
Climate — monthly normals
Warmest month Jul (avg high 82°F), coldest Jan (avg low 24°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 44 | 49 | 57 | 68 | 74 | 79 | 82 | 81 | 76 | 68 | 57 | 47 |
| Avg low °F | 24 | 26 | 32 | 40 | 50 | 58 | 64 | 62 | 55 | 42 | 32 | 27 |
| Precip in | 4.0 | 4.0 | 4.6 | 4.5 | 4.9 | 4.6 | 5.6 | 4.4 | 3.5 | 3.0 | 3.1 | 4.3 |
NOAA 1991–2020 climate normals from the nearest station: WHITESBURG 2SE (6.2 mi) · NOAA NCEI
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