| ZIP Codes: | 16 ZIP Codes (15 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Code: | 606 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:19 PM |
| Population: | 22,785 [See All] |
| FIPS: | 21121 |
| CBSA: | Corbin, KY |
| Land Area: | 350 sq mi |
| Water Area: | 1 sq mi |
| Coordinates: | 36.8871, -83.8298 |
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22,785 residents live across 16 ZIPs covering 350 sq mi, served by 16 distinct USPS-recognized cities.
Population moved from 25,815 to 22,785 from 2014 to 2024 — a -11.7% change. 5 ZIPs gained residents, 10 lost.
The county's wealthiest ZIP 40943 (Girdler, $67,143 median) and poorest ZIP 40953 (Hinkle, $16,375) are 3.2 miles apart — a 4.1× income gap across local geography.
Median home values vary 16.5× across this county — from $9,999 in 40915 (Bimble) to $165,000 in 40923 (Cannon).
Density varies 18× across the county — from 12 people/sq mi in 40921 (Bryants Store) to 202 in 40943 (Girdler).
Educational attainment ranges from 1.8% bachelor's+ in 40997 (Walker) to 27.2% in 40915 (Bimble) — the breadth of educational profiles across the area.
Within Kentucky, this is the #49 most populous of 120 counties and ranks #111 for median household income .
Weighted by population, the typical household earns about $32,107 across the county — reflecting what a typical resident sees, not a simple ZIP average.
13.0% of adults age 25+ hold a bachelor's degree or higher (1,998 of 15,349 reporting).
15 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 4.1× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
Knox County lost 11.7% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 40906 | Barbourville | Standard | 10,813 | $23,375 | 111.0 | -7.8% |
| 40734 | Gray | Standard | 3,602 | $42,500 | 44.8 | 1.9% |
| 40771 | Woodbine | Standard | 1,915 | — | 10.0 | 46.3% |
| 40935 | Flat Lick | Standard | 1,748 | $23,157 | 67.1 | -40.1% |
| 40943 | Girdler | Standard | 1,117 | $67,143 | 5.5 | 48.9% |
| 40923 | Cannon | Standard | 679 | $47,865 | 5.5 | -30.6% |
| 40915 | Bimble | Standard | 564 | $41,822 | 5.6 | -48.1% |
| 40903 | Artemus | Standard | 558 | $60,833 | 15.9 | 3.3% |
| 40949 | Heidrick | Standard | 468 | $54,688 | 3.4 | -16.3% |
| 40953 | Hinkle | Standard | 454 | $16,375 | 9.9 | -54.2% |
| 40997 | Walker | Standard | 404 | — | 23.5 | -4.3% |
| 40982 | Scalf | Standard | 168 | $16,442 | 5.2 | -62.9% |
| 40921 | Bryants Store | Standard | 147 | — | 12.7 | -58.0% |
| 40995 | Trosper | Standard | 120 | $36,188 | 6.7 | 313.8% |
| 40946 | Green Road | Standard | 28 | — | 23.7 | -83.0% |
| 40930 | Dewitt | PO Box | — | — | 0.1 | — |