Zip Code 41855 — Thornton, KY
41855 is a ZIP Code associated with Thornton, KY, located within Letcher. 41855 ranks #8 out of 24 ZIP codes in Letcher County by population (and #522 out of 780 in KY). The area supports an estimated population of 711 residents across Data Pending housing units, with a population density of 36.9 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (37.188740, -82.784960)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 41855 |
| Primary City | Thornton |
| State / Province | KY |
| County | Letcher |
| Total Population | 711 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 36.9 people/sq mi |
| Timezone | America/New_York |
How 41855 Compares
| Metric | ZIP 41855 | Letcher County | KY State Average |
|---|
| Population | 711 | 21,740 (Total) | 4,542,460 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 36.9 /sq mi | -- | -- |
| County Pop Rank | #8 of 24 | -- | -- |
Nearby ZIP Codes
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 →