Onton ZIP codes, Kentucky
No ZIP code is named for Onton, KY; addresses there use a neighbouring town's name. The ZIP code covering it is 42455. Its area codes are 270 and 364.
- USPS city name
- 0 ZIP codes
- Overlapping the city
- 1 more
- Population
- 122
- County
- Webster County
- State
- Kentucky
NANPA lists no telephone rate centre for Onton itself, so these are the area codes of the nearest one, Sebree (0.0 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes covering Onton
These ZIP codes cover part of Onton but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
42455 | Sebree , KY | Standard | 3,758 | $68,324 | $114,500 |
Map of Onton ZIP codes
The ZIP codes of Onton, KY, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Onton
The nearest larger towns are Sebree (1,825 people, 4.8 mi), Beech Grove (291 people, 5.0 mi) and Slaughters (175 people, 6.1 mi).
| Town | Population | Distance |
|---|---|---|
| Madisonville | 19,515 | 15.6 mi |
| Sorgho | 2,960 | 17.8 mi |
| Providence | 2,857 | 20.5 mi |
| Henderson | 27,852 | 20.6 mi |
| Owensboro | 60,302 | 22.2 mi |
| Masonville | 2,887 | 22.3 mi |
| Central City | 5,707 | 25.0 mi |
| Morganfield | 3,185 | 25.7 mi |
| Newburgh, IN | 3,395 | 26.9 mi |
| Thruston | 2,581 | 27.9 mi |
| Greenville | 4,410 | 28.2 mi |
| Evansville, IN | 116,116 | 29.9 mi |
More nearby: every ZIP code in Webster County · Kentucky ZIP codes
Cite this page
zipcodes.pro. “Onton, KY ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ky/onton
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