County ZIP codes · Kentucky · FIPS 21091
Hancock County, KY ZIP Codes
Hancock County, Kentucky has 6 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 5 residential and 1 for PO boxes or a single organization. 3 of the residential ones lie mainly in Hancock County and 2 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $76,213 in 42351 (Lewisport) to $87,672 in 42366 (Philpot) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Hancock County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
They carry 5 postal town names: Philpot, Hawesville, Lewisport, Fordsville, Reynolds Station.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 5 residential ZIP codes in Hancock County
3 ZIP codes lie mainly in Hancock County; 2 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 42348 | Hawesville | 4,713 | 45 | $57k | $121k | 88% |
| 42351 | Lewisport | 4,587 | 65 | $76k | $169k | 76% |
| 42368 | Reynolds Station | 989 | 22 | $76k | $158k | 56% |
Partly in Hancock County
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
5 ZIP codes of Hancock County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Hancock | Elsewhere |
|---|---|---|
| 42366 | 1% | Daviess County95%; Ohio County4% |
| 42348 | 88% | Daviess County12% |
| 42351 | 76% | Daviess County24% |
| 42343 | 21% | Ohio County76%; Breckinridge County3% |
| 42368 | 56% | Ohio County44% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 42364 | Pellville |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Hancock County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Hancock County starts with 423.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 423 | Evansville, IN (SCF 476) | 6 | 45 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.