County ZIP codes · Kentucky · FIPS 21233
Webster County, KY ZIP Codes
Webster County, Kentucky has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Webster County and 3 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $54,219 in 42441 (Nebo) to $80,069 in 42452 (Robards) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Webster County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $54,710 and $65,256.
They carry 10 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 10 residential ZIP codes in Webster County
7 ZIP codes lie mainly in Webster County; 3 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 42450 | Providence | 3,859 | 53 | $55k | $77k | 50% |
| 42455 | Sebree | 3,758 | 52 | $68k | $115k | 100% |
| 42409 | Dixon | 2,293 | 28 | $60k | $155k | 100% |
| 42404 | Clay | 2,109 | 24 | $61k | $115k | 94% |
| 42456 | Slaughters | 1,533 | 22 | $60k | $156k | 64% |
| 42463 | Wheatcroft | 84 | 55 | $36k | $81k | 100% |
| 42444 | Poole | no residents | 0 | – | – | 100% |
Partly in Webster 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?
6 ZIP codes of Webster County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Webster | Elsewhere |
|---|---|---|
| 42437 | 3% | Union County 97% |
| 42450 | 50% | Hopkins County 31%; Crittenden County 19% |
| 42404 | 94% | Union County 6% |
| 42452 | 8% | Henderson County 92% |
| 42456 | 64% | Hopkins County 36% |
| 42441 | 7% | Hopkins County 93% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Webster 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 Webster County starts with 424.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 424 | Evansville, IN (SCF 476) | 10 | 32 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.